What Is The Cache Hit Ratio and The Most 3 Quick Tips to Increase It?

The cache hit ratio is calculated by dividing the number of cache hits by the total number of cache requests (the sum of the number of cache hits and the number of cache misses). Finally, that result is multiplied by 100 to get the percentage.

Hit Ratio

The cache hit ratio is one of the metrics in the cache memories, used to determine the cache’s efficiency. A Content Delivery Network (CDN) stores your website’s content in the proxy/ edge server for fast delivery to your users worldwide. 

By measuring the cache hit ratio, we can measure how many content requests your cache can effectively deliver. Here, we will explain what the hit ratio is and how to measure it. We will also look at three quick tips to increase the cache hit ratio. 

What is Cache and How Does it Work?

Before discussing the cache hit ratio, you need to understand what a cache is and the importance of using a caching mechanism on your website & how cache works.

A cache is a temporary memory that stores your website’s data or static content so that when a user visits your webpage, that content will render much faster. By using a cache you can boost your website’s load time for a better user experience.

The resources you need to cache include:

  • HTML files
  • CSS stylesheets
  • JavaScript files
  • Media files (images, videos, and others)

Let’s understand the cache mechanism in simple words. When a user visits your website for the first time, the browser loads the static resources and stores them in the browser cache. The next time that user revisits your website, the stored resources are served from the browser cache.

If the requested content is not available in the browser cache, then the HTTP request will go to the CDN cache. If that requested content is present in the CDN cache, then it will be served from there.

Finally, that HTTP request will go to the origin server. If the content is present in server memory, it will be served from the server cache. Otherwise, it will be served from the hard disk or storage

Let us understand this cache mechanism with an example.

  • A visitor opens the cache vs cookies blog on RabbitLoader.com.
  • If images are present in the cache, it will serve from the cache in RabbitLoader, increasing the cache hit ratio.
Image Cached
  • Otherwise, it will serve from the origin server (Hostinger). This is known as a cache miss.

What is the Cache Hit and Hit Ratio?

A cache hit happens when a user requests data or content from a cache and that cache is able to fulfill that HTTP request, indicating the data/ content is successfully served from the cache. 

Cache Hit, hit ratio,

The cache hit ratio is an important metric for CDNs that tells how efficiently a CDN can serve the content that is stored in the cache. It’s measured as the number of cache hits divided by the total HTTP request (cache hit and cache miss).

What is the Cache Miss and Miss Ratio?

A cache miss ratio occurs when the requested content or data is not available in the CDN cache. Thus, the requested content will serve from the origin server instead of the CDN cache.

cache miss

The cache miss ratio is calculated as a percentage of the number of cache misses and the total number of cache hits and cache misses. 

The Example of Cache Hit and Cache Miss

Now you have a brief knowledge of cache hit and cache miss. Now, you will understand with an example. 

RabbitLoader publishes a new blog on its website, and you are the first visitor to this blog for an edge location. So, when your browser sends an HTTP request for the content of this blog, the content will be sent from the origin server and loaded in the CDN server. Because the content is not available in CDN, a cache miss occurs in CDN.

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The next time anyone opens this blog, the content can be served from the nearest edge server instead of the origin server. This can be described as a cache hit.

How to Calculate the Cache Hit Ratio and Cache Miss Ratio?

As mentioned earlier, you can calculate the hit rate by dividing the number of cache hits by the total number of cache requests (the sum of the number of cache hits and the number of cache misses). Finally, that result is multiplied by 100 to get the percentage.

Hit Ratio, cache hit ratio,

The easiest way to calculate hit ratios is by using the below formula: 

Cache hit rate (the number of cache hits/ Total cache requests)*100

To calculate the cache miss ratio, you need to divide the number of cache misses by the total number of HTTP requests and then multiply by 100.

missratio, miss ratio, hit ratio

Cache miss rate= (the number of cache misses/ (Total cache requests)*100

Let’s understand with an example. Let’s say the total number of cache requests is 50, and the cache hits are 26. 

Cache hit rate= (26/50)*100

                      = 52%

Cache miss rate= (100-52)%

                          = 48%

What is the Ideal Cache Hit Ratio?

By getting the cache metrics: cache hit rate and cache miss rate, you can determine the CDN performance. If your website is made up of lots of static content, then your cache hit rate should be greater than 95 %

Cache hit ratioRemarks
Greater than 95%Ideal cache hit rate
90% – 95%High cache hit rate
Below 90%Low cache hit rate

You need to keep in mind that if your website has a lot of dynamic content, it may have a lower cache hit ratio.

3 Ways to Increase Cache Hit Ratio for Your Website 

As you can see, the cache hit rate determines the cache performance for your website. Therefore, If the cache hit rate is low for your website, you need to increase it to boost your website’s performance. Let’s list the 3 most common ways to increase this hit rate:

  • Set up a cache-control header based on your website’s requirements
  • Increase the cache size and optimize the cache usage
  • Cache invalidation

Set Up a Cache-Control Header Based on Your Website’s Requirements

cache control max age

By cache-control header, you can set the caching rules for optimizing your website’s data/ content serving. Here we will explore some cache-control header rules that include:

  • no-cache indicates that though the requested content is available in the edge cache server, the HTTP response needs to be validated from the origin server before serving it.  
  • max-age indicates the amount of time that the cache can store your website’s content. It can be measured in seconds.
  • private tells your resources can be only stored in a private cache.
cache control

Optimize the Cache Size and Cache Usage

Optimizing the cache size and selecting the content to cache properly can increase your cache hit ratio. You need to ensure that the frequently accessed resources are stored in the cache by prioritizing high-demand resources. 

Cache Invalidation 

To increase the hit ratio, you need to ensure that your cached content remains up-to-date. To avoid stale content, you must invalidate or refresh your cache by setting up the cache control:max-age

How RabbitLoader Will Help You to Increase Your Cache Hit Ratio?

As you can see, the above ways are time-consuming. Being from a non-tech background, these strategies can look impossible to implement. But don’t panic. RabbitLoader has the solution. Let’s explore how RabbitLoader works to improve your cache hit ratio.

  • You can easily install Rabbitloader to optimize your website’s performance, it will cache your website’s assets such as CSS sheets, Scripts, images, and HTML files for the right amount of time. Therefore, by storing your website’s assets, RabbitLoader will increase your website’s cache hit ratio and reduce the load on your origin server.
  • RabbitLoader has a premium Content Delivery Network (CDN) with 300+ PoPs worldwide. By using RabbitLoader, you can ensure that your content is up-to-date (stale-free). It will also help you reduce your network latency with its 300+ PoPs.
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Core Web Vitals Assessment Failed: How Can You Fix It?

To fix the core web vitals assessment: failed issue, you need to identify the core web vitals issues. According to that, this can be achieved by optimizing your LCP, INP, and CLS performances.

Optimization techniques such as Image optimization, lazy loading, browser caching, CSS, and JavaScript optimization can be used to fix the core web vitals assessment: failed issue.

Core Web Vitals Assessment: Failed

Google clarified that Core Web Vitals is one of the factor that will be used to determine Search Engine Optimization (SEO) rankings. Thus, it is crucial for website owners or developers to ensure that their websites pass this assessment.

If you are a solo-premier or running a small team and do not always have access to a developer, here we will show you how you can solve the issue for your WordPress website using RabbitLoader. Also available for….other platforms

What Are Core Web Vitals?

Let’s understand the core web vitals. Google developed a set of metrics to determine a website’s performance based on the following factors:

  • The initial page loading time: how long it takes it to initially load the webpage.
  • The user interaction: how fast it responds to the user’s request.
  • The web page’s visual stability: how stable the web page is.
Core web vitals assessment passed

Based on the above factor, Google introduced the three main pillars of the core web vital which include: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). 

Largest Contentful Paint (LCP)

The Largest Contentful Paint (LCP) determines how quickly a website loads. This user metric calculates how long it takes for the biggest element on a page, such as a hero image or a large text block, to display on the user’s browser. 

LCP

A good LCP performance can improve the website’s loading time as well as the user experience, increasing the conversion rate.

First Input Delay (FID)

First Input Delay (FID) is a metric that determines a web page’s interactivity. It is defined as the span of time between the first user interaction with a web page and the browser’s response to that user interaction.

FID

This user interaction could be tapping on a link, pressing the keyboard, or clicking a button.

Note: Google has introduced a new performance metric, Interaction to Next Paint (INP) to replace the FID.

Cumulative Layout Shift (CLS)

Cumulative Layout Shift (CLS) is a performance metric that determines a web page’s visual stability. It quantifies the amount of unexpected layout shift that occurs during the page’s loading phase.

cls

Unlike the above two performance metrics, Cumulative Layout Shifts (CLS) is not any amount of time, therefore can’t measure CLS in seconds or milliseconds. 

What Is The Meaning Of Core Web Vitals Assessment: Failed?

If one or more of the three performance metrics, LCP, FID, or CLS, on your website, does not meet the threshold values, it indicates that your site does not pass the Core Web Vitals assessment in Google PageSpeed Insights.

  • A failed LCP: It takes a lot of time to render the largest element on the web page.
  • A failed FID: A poor performance of user interaction.
  • A failed CLS: the page’s content shifts during its lifespan.

The Impact Of Core Web Vitals Assessment: Failed

According to the webFX website, 40% of online users will leave a website if it takes more than 3 seconds to render the content. hence if your website fails the core web vitals assessment, it will negatively impact the average on-page time which is an organic ranking factor

Failed core web vitals assessment

According to a survey, almost 70% of users say that an e-commerce store’s website page speed impacts their willingness to buy from it. Therefore, the poor performance of core web vitals can negatively affect your website’s conversion rate.

Not only the conversion rate but also failed core web vitals harm your Google rankings. According to a case study, redBus, the popular bus ticket platform, optimizes its core web vitals. As a result, the conversion rate has improved by 7%. Therefore, we can conclude that for many businesses, this could be a make-or-break factor. 

How To Measure Core Web Vitals?

It’s essential to understand the core web vitals assessment reports and their issues to fix them. When you audit your website’s page speed performance in Google PageSpeed Insights, the first thing you can see is the core web vitals assessment.

Google PageSpeed insights provide the core web vitals assessment based on lab and field data. While the lab data is collected from the laboratory report in the Google Lighthouse in a controlled environment, field data is collected from the Chrome User Experience Report (CrUX).

Measure core web vitals

In order to determine the core web vitals assessment report, Google set some specific values for the core web vitals. For more details, you visit our core web vitals blog.    

Google PageSpeed Insights also provides suggestions for improving the performance of the core web vitals and passing the core web vitals assessment. 

Implementing these suggestions will help you improve your core web vitals performance and boost your conversion rate by providing a seamless experience to your users. Below are the strategies for implementing these suggestions.

FAQ: what are the helpful tools to identify the core web vitals issues and optimize them?

There are several tools available online to identify your website’s issues that are failing you the core web vitals assessment. While tools like GTmatrix allow you to test individual pages for free, you might have to invest a little bit if you need a detailed assessment for the entire website on tools like GTmatrix, and DebugBear.

To fix the issues, you can either hire a web developer or use a tool like RabbitLoader which helps you optimize your entire website for the best performance.   

How To Pass The Core Web Vitals Assessment?

Here, we will discuss the most common Google PageSpeed Insights warnings and how you can easily mitigate them using RabbitLoader and passing the core web vitals assessment. 

Efficiently Encode Images

The Efficiently Encode Images warning in PSI indicates that you need to optimize your images to reduce their size without harming their quality. This could be done using lossless compression, a technique that reduces an image’s size without sacrificing its original quality.

Eficiently encode images

Any uncompressed image on your page would result in a larger page size for your website since the unoptimized image itself has a higher file size. Learn more with our previous blog.

Let’s see how RabbitLoader mitigates this issue. 

  • Losslessly Compressing The Images

Compressing large images can reduce their size. There are two types of image compression: lossless compression, which compresses images without sacrificing quality, and lossy compression, which reduces the image size along with its quality.

lossless compression

RabbitLoader’s in-built lossless compression capability reduces image size without sacrificing quality.

  • Optimizing Images By Converting Them Into Next-Gen Formats

Another effective method for resolving this Efficiently Encode Images warning is image optimization. You can resolve this issue by converting your large-sized JPEG and PNG images into next-gen image formats such as AVIF and WebP.

Serve images in next gen formats

An in-built bulk image optimizer in RabbitLoader can convert your all PNG and JPEG images to WebP and AVIF formats. Converting them to these next-gent formats can save approximately 39% of your image loading times. 

Reduce Initial Server Response Time

The time it takes for a server to respond to a browser request is known as the server response time. If your website takes a long time to respond to the browser request, you will come across this page speed warning “Reduce Initial Server Response Time”.

server response time

Let’s see how RabbitLoader can help you to resolve the “reduce initial server response time” warning. 

  • Browser Caching 

Using a browser caching technique can significantly reduce the initial server response time by temporarily storing your static resources in the browser cache during the first visit. When the visitor revisits the site, the cached content is rendered from the browser cache, reducing server response time. 

browser caching

When optimizing your website by using RabbitLoader, it takes care of your browser caching and also adds the cache invalidation to keep your cached control stale-free.  

  • Content Delivery Network

Due to the high physical distance between the visitor and the server, network latency can occur, increasing the initial server response time. It would negatively affect your user experience.

cdn

By using a premium Content Delivery Network (CDN) with 300+ edge/ proxy servers, RabbitLoader can reduce the initial server response time by minimizing the network latency. 

  • Load The Above-The-Fold Images First 

During web page rendering, the browser generally first loads all of the page’s assets, which can increase the initial server loading time. By implementing lazy loading, you can only load the assets essential to render the above-the-fold content first.

Above the fold

RabbitLoader defers your below-the-fold graphics by enabling the lazy load optimization technique. This reduces the server response time and enhances the performance of the core web vitals, particularly LCP, CLS, and INP.

  • Generating Critical CSS Files For The Above-The-Fold Content

The CSS rules required to render the above-the-fold content, are known as critical CSS. Therefore, these styles are essential for rendering the above-the-fold content. By generating critical CSS, you can reduce the initial server response time. For more details visit our previous blog.

RabbitLoader identifies the critical resources of your webpage and generates a separate file. This can help you to improve the core web vitals performance especially LCP and INP performance.  

Avoid Enormous Network Payloads

If your website’s page size exceeds the recommended size (less than 1600 KiB), Google PageSpeed Insights triggers the error “Avoid Enormous Network Payloads” for pages that do not adhere to this recommendation. Therefore, to mitigate this warning, you need to optimize the core web vitals by following the below techniques along with the above techniques:

Avoid network payloads
  • Minify Stylesheets, Scripts, And HTML Files

Minifying stylesheets, scripts, and HTML files can reduce the total page size by reducing the unnecessary characters from these files. These unnecessary characters can be comments, line breaks, and white press which developers often use to increase the readability.

RabbitLoader minifies these resources to mitigate this Avoid Enormous Network Payloads warning and improve your core web vitals performance.

  • Compress All Resources Files

Compression is a technique for reducing the size of CSS and JavaScript files by reducing the redundancy of the code. In simple words, by compressing, you can replace the repeated strings with a single pointer, decreasing the page size.

Minify Resources

Resource compression can be of two types: GZIP and brotli. While GZIP is the traditional compression technique, brotli uses the modern compression method. RabbitLoader uses brotli compression and helps you pass the core web vitals assessment by optimizing them.     

  • Reduce Unused CSS

Reduced unused CSS is the most common Google PageSpeed Insights warning if you don’t use one or more than one CSS style on your website but define it in the stylesheets. This also increases the page size.

Reduce unused css

When you are using RabbitLoader for website optimization, in the optimized version, you get a new CSS file where only the required CSS rules will be present. Therefore, your page size will be significantly reduced, which will positively affect your core web vitals performance.

Image Elements Do Not Have Explicit Width And Height

Adding an image without setting the proper width and height can trigger the “image elements do not have explicit width And Height” warning. This is one of the most common reasons for your poor CLS score.

Image element do not have explict

RabbitLoader automatically resizes your images to fit every screen size, preventing shifting and enhancing both the user experience and CLS performance. Therefore, you can easily pass the core web vitals assessment. 

Avoids An Excessive Dom Size

The browser creates a DOM tree during web page loading. A large DOM size often increases memory usage, and so does the webpage loading time, affecting your core web vitals assessment. To solve this warning, you can follow the techniques:

Avoid an exassive dom size
  • Avoid Using Third Party Script

When you use a third-party script, like Google ads, the DOM size can be increased, slowing your website’s page speed. So, in order to pass core web vitals, you need to avoid using third party scripts.  

  • Don’t Use Too Many Optimization Plugins

Plugins can optimize your website’s page speed performance, but sometimes, using too many plugins can decrease your website’s performance. They also have stylesheets and scripts. During a page, these files need to be executed, slowing your website by increasing the DOM size.

RabbitLoader is an all-in-one optimization tool with 10+ optimization features that prevent the use of too many optimization plugins, mitigating this “avoid an excessive DOM size”. Therefore you don’t need to invest your money in using different optimization plugins.    

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RabbitLoader is able to reduce the DOM size by compressing your HTML file. Also when you are using RabbitLoader, you don’t need to use too many plugins. As you can see, RabbitLoader can optimize almost all resources, thus, you don’t need to use too many plugins.

Minimizes Main-Thread Work 

Google PageSpeed Insights triggered the “Minimize main-thread work” warning if the main thread is blocked by the other tasks. This is one reason your core web vitals assessment might fail,

Minimize main thread work

Minimizing the main thread work can speed up your website and improve the performance of Interaction to Next Paint (INP). The best practice is to optimize your JavaScript files to minimize the main thread work.

  • JavaScript Optimization 

JavaScript file is used to make an interactive web page and increase the average on-page time. However, JavaScript blocks the main thread and increases the INP time. 

Some JavaScript functions are needed during the initial loading time like any warning or alerting pop-up. Apart from these functions, RabbitLoader defers the rest of the non-priority JavaScript functions, improving the initial loading time.

In addition, RabbitLoader supports multithreading, so we can use other threads simultaneously if the main thread becomes busy.

Eliminate Render-Blocking Resources

An unoptimized image, unused CSS, and JavaScript files block the main thread and act as render-blocking resources. Because of them, you can see the warnings eliminate render-blocking resources”.

Eliminate Render Blocking resources

Therefore by optimizing the image, CSS, and JavaScript file, you can easily eliminate the render-blocking resources and pass the core web vitals assessment. We have already discussed the optimization techniques.

A quick recap of the core features of RabbitLoader:

  • Losslessly compressing  the images 
  • Optimizing the images by converting them into WebP and AVIF format
  • Using a browser caching mechanism
  • Using a premium Content Delivery Network (CDN)
  • Loading the above-the-fold images fast
  • Generating critical CSS
  • Minifying stylesheets, scripts, and HTML files
  • Compressing all resource files
  • Reducing the unused CSS
  • Optimizing the JavaScript files
  • Allowing multi-threading

Conclusion 

Is your Core Web Vitals assessment: Failed in Google PageSpeed insights? As discussed, it directly affects your user experience, conversion rate, and Google rankings. By optimizing your core web vitals you can easily pass the core web vitals assessment.

Here we have mentioned a non-coding solution, RabbitLoader which can help you pass the core web vitals assessment and increase the overall score in Google PageSpeed Insights.

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Why Set wp-config.php to Writable is Essential for Your WordPress Site

If you’re working with a WordPress site, then you may have encountered an error that says, “wp-config.php is not writable.” This error message means that the file cannot be edited or modified, which can be a frustrating issue to deal with. Fortunately, there’s a solution that can help you fix this problem.

The wp-config.php file is an important file in your WordPress installation. It contains all the essential settings for your website, such as the database credentials, site URL, security keys, and more. When you install WordPress, the wp-config.php file is created automatically, and it’s usually set to read-only by default to prevent any unauthorized access.

Set wp-config.php to Writable

However, if you want to make changes to your website, such as installing a new plugin or theme, you’ll need to modify the wp-config.php file. This is where the set wp-config.php to writable error comes in. If the file is set to read-only, you won’t be able to modify it, which can cause problems for your website.

View more: Render Blocking Resources

FAQs:

What is the wp-config.php file in WordPress?

The wp-config.php file is a crucial file in your WordPress installation, containing essential settings for your website, such as the database credentials, site URL, security keys, and more.

Why do I get the “wp-config.php is not writable” error message?

This error message appears when you don’t have permission to set wp-config.php to writable. WordPress sets the file permissions for this file to read-only by default, allowing only the owner of the file to modify it.

Can I set the wp-config.php file permissions to 777 to make it writable?

No, it is not recommended to set the wp-config.php file permissions to 777 as it would allow anyone to read, write, and execute the file. This can pose a significant security risk, as hackers can easily access and modify the file. It is best to set the file permissions to 644 or 640 after making the necessary changes to ensure the security of your website.

What other files or directories in WordPress should I set to writable?

Generally, you should only set the wp-config.php file to writable. Setting other files or directories to writable can also pose a security risk. However, there may be some exceptions where certain plugins or themes require write access to specific files or directories. In such cases, it is best to check the documentation of the plugin or theme for specific instructions.

What does the “wp-config.php is not writable” error mean?

When managing a WordPress website, it’s not uncommon to encounter errors. One of the most common errors that WordPress users come across is the “wp-config.php is not writable” error message. This error message can be confusing, especially for new WordPress users who may not be familiar with how the WordPress file system works.

Essentially, this error message means that you do not have permission to modify the set wp-config.php to writable file. The wp-config.php file is a crucial file in your WordPress installation, as it contains important settings, such as database credentials and authentication keys.

Without the ability to modify this file, you may be unable to make necessary changes to your website, which can lead to issues with functionality or security.

wp config error

When you encounter the “wp-config.php is not writable” error message, it’s typically because WordPress sets the file permissions for this file to read-only by default. This means that only the owner of the file can modify it. If you try to make changes to the file without the proper permissions, you will receive an error message.

To resolve this issue, you will need to change the file permissions to allow you to modify the file. You can do this by accessing your website’s files through an FTP client or file manager and locating the wp-config.php file. Right-click on the file and select “File Permissions” or “chmod” depending on the FTP client or file manager you are using.

You will then need to set the file permissions to allow you to modify the file. In most cases, setting the file permissions to 644 should be sufficient.

It’s important to note that changing the file permissions of the wp-config.php file to allow anyone to modify it can pose a significant security risk. This file contains sensitive information, and allowing anyone to modify it can give hackers access to your website’s data. Therefore, it’s crucial to revert the file permissions back to read-only after making the necessary changes to the file.

php,Set wp-config.php to Writable

How to Set wp-config.php to Writable?

To set wp-config.php to writable, you’ll need to change its file permissions. File permissions are a set of rules that determine who can read, write, and execute a file. By default, the wp-config.php file is set to 644 permissions, which means that the owner can read and write the file, while everyone else can only read it.

To change the file permissions, you can use an FTP client or a file manager in your web hosting control panel. Here’s how to do it:

Step 1: Open your FTP client or file manager and navigate to the directory where your WordPress installation is located.

Step 2: Find the wp-config.php file and right-click on it. Select “File Permissions” or “Change Permissions” from the context menu.

Step 3: In the Permissions dialogue box, change the file permissions to 666. This will allow everyone to read and write the file. Alternatively, you can set the permissions to 664, which allows only the owner and the group to read and write the file, but not others.

Step 4: Click on the “Apply” or “Save” button to save the changes.

Note: Remember to set the file permissions back to 644 or 640 after you have made your changes to ensure the security of your website.

Check out: Preload Fonts

FAQs:

What should I do if I am still unable to modify the set wp-config.php to writable file after changing the file permissions?

If you are still unable to modify the set wp-config.php to writable file after changing the file permissions, it could be due to other factors such as file ownership or server configuration. In such cases, you may need to contact your web hosting provider for assistance.

Set wp-config.php to Writable

Why is it Essential to Set wp-config.php to Writable?

It’s essential to set wp-config.php to writable because it allows you to make changes to your website’s settings, such as adding new database credentials or changing the site URL. Without the ability to modify the set wp-config.php to writable file, you won’t be able to make changes to your website, which can cause problems, such as preventing you from installing new plugins or themes.

It’s important to note that changing the file permissions to allow everyone to read and write the set wp-config.php to writable can be a security risk. Anyone who has access to the file can make changes to your website’s settings, which can compromise your site’s security. Therefore, it’s crucial to set the file permissions back to read-only after you have made your changes to ensure the security of your website.

Without the ability to set wp-config.php to writable, you may encounter issues such as not being able to install new plugins or themes, which can limit your website’s functionality. This can also cause problems when troubleshooting issues with your website, as you won’t be able to make any necessary changes to the file.

Read next: Boost Laravel PageSpeed with CDN Caching Services

However, changing the file permissions to allow everyone to read and set wp-config.php to writable can also pose a security risk. Anyone who has access to the file can make changes to your website’s settings, which can compromise your site’s security. For example, someone could potentially change the database credentials, allowing them access to sensitive information on your website.

Therefore, it’s crucial to set the file permissions back to read-only after you have made your changes to ensure the security of your website. This will prevent anyone from making unauthorized changes to the file and compromising your website’s security.

In summary, set wp-config.php to writable is essential to make changes to your website’s settings, but it’s crucial to set the file permissions back to read-only after you’ve made your changes to protect your website’s security. By following these steps, you can ensure that your website remains secure while still allowing you to make necessary modifications to set wp-config.php to writable.

Conclusion:

In conclusion, set wp-config.php to writable is a necessary step when managing a WordPress website. This file contains essential settings that can impact your site’s functionality and security, so being able to modify it is crucial.

However, it’s important to note that changing the file permissions to allow everyone to read and write the file can be a significant security risk. It’s crucial to set the file permissions back to read-only after making necessary changes to ensure the security of your website.

By following these steps and taking necessary precautions, you can ensure that your website remains secure while still allowing you to make necessary modifications to the set wp-config.php to writable file.

What Is The Largest Contentful Paint And How To Optimize to Pass the Core Web Vitals. 

The Largest Contentful Paint (LCP) is one of the 3 pillars of the Core Web Vitals. It can be optimized in two ways: either by implementing optimization techniques such as image, CSS, and JavaScript optimization, or using an all in one  performance optimization plugin  like RabbitLoader.

Largest Contentful paint

Prioritizing the user experience, Google have added the Largest Contentful Paint to measure a webpage’s initial loading time, Cumulative Layout Shifts (CLS) to quantify the page’s stability, and Interaction to Next Paint (INP) to analyze the website’s interactivity with users. 

Here we will explain the Largest Contentful Paint (LCP) in detail and how to optimize this to improve PageSpeed performance & pass the Core Web Vital test.   

What Is The Largest Contentful Paint (LCP)?

The Largest Contentful Paint (LCP) analyzes the time it takes to display the largest content of your website in the user’s browser. 

This performance metric is used to analyze a page’s initial loading time. A hero image, text blocks (such as headlines, and paragraphs), and video thumbnails can be considered as the largest contentful element.

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A good LCP time can help you achieve a desirable PageSpeed scores, lower bounce rate, and higher Google rankings. 

What Is Considered An Ideal Largest Contentful Paint (LCP) Time?

If you want to be in a green zone in the PageSpeed insight test, your LCP time needs to be less than 2.5 seconds. An LCP score between 2.5 seconds and 4.0 seconds is considered moderate performance, and Google always suggests improving it.

LCP gtmetrix

If a user needs to wait more than 4.0 seconds, it’s categorized as a poor LCP performance.  

The Difference Between LCP And FCP

Although Largest Contentful Paint (LCP) and First Contentful Paint (FCP) both analyze the initial loading time of a web page, there are some differences in their functionality. 

Largest Contentful Paint , lcp vs fcp

Where the Largest Contentful Paint (LCP) is used to measure the span of time it takes to render the largest elements (a hero image or text blocks) of a web page, the First Contentful Paint (FCP) calculates the time it takes to display a non-white canvas. 

The Reason Behind A Poor LCP Score

Several factors can affect the Largest Contentful paint (LCP). Let’s mention the most common reasons behind poor LCP performance.

  • A slow server response time
  • Unoptimized images 
  • Unoptimized CSS 
  • Not implementing Lazy Loading
  • Unoptimized JavaScript files
  • High network latency.

How To Optimize LCP Performance? 

To improve your PageSpeed performance, you need to optimize the Largest Contentful Paint (LCP) performance along with the other core web vital metrics. Let’s dive into the most effective optimization strategies to improve the LCP performance.  

LCP pagespeed insights

Reduce The Initial Server Response Time

Using a browser and CDN caching mechanism can significantly reduce the initial server loading time by temporarily storing static resources like stylesheets, scripting and HTML files, and images in the browser cache and proxy server.     

Manually increasing a caching mechanism requires too much effort, especially if you are not from a technical background. However, using RabbitLoader, you can easily implement a browser caching mechanism on your website in a few minutes. 

Reduce server response time

On the other hand, when you use RabbitLoader, you don’t need to invest money for CDN. RabbitLoader reduces network latency through its in-built content delivery network, which has 300+ edge/proxy servers. 

Serve The Images In Next-Gen Format

Though a high-resolution image can make a website more appealing, it can also negatively affect its PageSpeed performance by increasing the page file size. Converting the images into next-gen formats such as WebP and AVIF can improve the website’s loading performance.

Largest Contentful Paint

Manually converting images into next-gen formats one by one requires a lot of time and effort, especially when you have a large website or any e-commerce website. 

When you are using RabbitLoader, it converts your images into next-gen formats through its bulk image optimization feature. For more details, please read our Next-Gen Formats blog.

Add Lazy Loading

To defer the offscreen images, you need to implement lazy loading to them. By implementing lazy loading (known as on-demanding loading), you can instruct the browser to load only the images required for rendering the viewport instead of all the images when the webpage is loading for the first time. 

The remaining images will load when they are required, improving the LCP time.   

When optimizing your website’s PageSpeed performance with RabbitLoader, you don’t need to implement lazy loading separately. RabbitLoader implements the Lazy loading for below the fold images automatically & improves your LCP score. 

Optimize the CSS & JavaScript files

CSS, JavaScript, and HTML files are fundamental resources for your website. However, unoptimized CSS and JavaScript files can block the main thread and have a negative impact on the LCP of your website.

Largest Contentful Paint

RabbitLoader optimizes the CSS & javascripts by reducing unused CSS and JavaScript, minifying the codes, and, most importantly, generating a separate critical CSS file that is unavoidable for achieving a good PageSpeed score, where most optimization tools lags behind.

Optimize LCP Performance With RabbitLoader 

As you can see, optimizing LCP performance can be challenging, especially when you have a large website or a non-technical background. However, RabbitLoader makes it very easy. With a few clicks, you can optimize your website’s LCP & other Core Web Vital  metrics.

Install RabbitLoader to optimize your website’s PageSpeed performance and provide your user with a fast-loading website. 

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Minimize Main Thread Work: 5 Effective Ways To Fix The Google PageSpeed Insight Warning

“Minimize main thread work” is the first recommendation you would have when auditing a website in Google PSI for a huge majority of websites.

But what does minimizing main thread work mean? And more importantly how to mitigate the “minimize main thread work” warning?

Minimize Main Thread Work

Web developers can implement various strategies to minimize main thread work, such as optimizing their critical rendering path with CSS stylesheets and JavaScript optimization.

Alternatively, this could also be achieved by adding a link rel= preload tag to the critical resources in your HTML file and implementing the lazy load technique to above-the-fold content to minimize main thread work and boost the Core Web Vitals performance.

But these techniques might look very daunting to a non-coder. Hence, we will see how the no-code solutions RabbitLoader can help you solve the issue if you are not a developer and five other ways you can do it if you are ready to get your hands dirty. 

What Is The Main Thread Work?

When you (the visitor) try to open a webpage on your browser, let’s say it’s the home page of  RabbitLoader.com the browser has to convert the codes in the page to create an image of the webpage in front of you.

Minimiza main thread work issue

To achieve the goal of showing you a beautiful webpage, the browser has to complete a list of tasks, such as parsing the CSS and Javascript files.

Now, some of these tasks are crucial, and some are not crucial. This logical list of crucial tasks can be regarded as the main thread. 

How to Minimize the Main Thread Work?

Google PSI instructions are loud and clear. To make the website load faster, you need to minimize the main thread’s work. In other words, you need to check the list of tasks your browser needs to do to show your website, find the non-crucial tasks, and redirect them from the main thread to the other thread known as the web worker.

This would make your list of crucial tasks on the main thread shorter.

Why Do We Need To Minimize Main Thread Work?

If the main thread is filled with non-critical tasks, that affects the parsing or execution of crucial tasks, which would negatively affect your website’s performance, exposing your users to a slow-loading website and less-than-ideal user experience. 

Minimizing the main thread work can significantly improve your page loading time, which in turn would boost your Google PageSpeed Insights score and Core Web Vitals performance.

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But how do you do that? Do you need to hire a developer for that? Or can you do it yourself?

The answer is both, but here we would see how you can minimize the main thread work by using the RabbitLoader Plugin without any coding or expert skills.

5 Effective Ways RabbitLoader Minimizes the Main Thread Work.

Let’s explore the most effective ways to RabbitLoader minimize main thread work to help you achieve a higher pagespeed score & pass the core web vitals test.

  • CSS optimization
  • JavaScript Optimization
  • Implement lazy loading for below-the-fold content
  • Add link-preload for critical resources
  • Deferring the third-party scripts

CSS Optimization

CSS is one of your website’s core resources. It is used to make your website stylish, and without CSS, your website may look dull. However, an unoptimized CSS can block the main thread and harm your website’s performance. Let’s see how to mitigate this issue.

  • Minify CSS Stylesheet

While most web developers add line breaks and unnecessary comments in the CSS stylesheets to make the code more readable, the browser considers these as unnecessary characters in order to render the web page. 

Minify css

Deleting these unnecessary characters from your CSS code can reduce the file size and improve the total blocking time, automatically improving your website’s page speed.

Manually deleting unnecessary characters from CSS files can be time-consuming. To save time, you must use an optimization tool like RabbitLoader to minify CSS stylesheets. For more details, visit our minifying resources blog.

  • Remove the Unused CSS

You often find some CSS rules in your stylesheets which are not required for your website’s design. This type of CSS rule is known as unused CSS and it unnecessarily blocks the main thread task. 

So, Removing Unused CSS can reduce the render-blocking resources by minimizing the main thread work, and improving the performance of core web vital metrics.

Reduce unused css

Manually removing unused CSS needs a lot of coding knowledge. If you are not from a technical background, install RabbitLoader. 

  • Generate Critical CSS 

Generating critical CSS is one of the essential techniques to optimize the website’s page speed performance. By generating critical CSS, you can significantly minimize the main thread task.

While most of the optimization tools are unable to create a separate file for critical CSS, RabbitLoader generates a separate file for critical CSS and reduces the main thread work.  

JavaScript Optimization

JavaScript is mostly known as a render-blocking resource. It increases your website’s total blocking time by increasing the main thread task. By optimizing JavaScript, you can significantly improve the website’s load time by reducing the main thread work.

Javascript optimization

The best way to optimize JavaScript is to defer the non-critical function. Implementing multi-threading, Code splitting and minification are also effective techniques used by RabbutLoader to optimize JavaScript and reduce the main thread. For more detailson how RabbitLoader does it, you can visit our previous blog speed index.

Implement Lazy Loading for Below-the-Fold Content

Implementing lazy loading can improve a website’s page speed by minimizing the main thread work for the initial loading. 

It allows the browser to prioritise loading images & other resources based on their position on the page, instead of loading the right away. 

RabbitLoader, does this effectively not only for the desktop, but also for the mobile version of the pages on your website allowing your users a smother user experience & you a better pagespeed score. 

Add Link-Preload for Critical Resources

Link Preload

Adding link pre-load in the HTML <head> for critical resources or via an HTTP header in an HTML file is another optimization technique to minimize the main thread. This method is extensively used to preload fonts to solve the text flashing issue popularly known as FOUT..

Deferring Third-Party Scripts

Third-party scripts might be necessary for the convenience they offer but they also bloat up your website & make them slow. Since they are using javascript which is very resource intensive.

During the initial page loading time, these coding files execute and block the main thread, increasing the total blocking time. 

Reduce the impact of third party code

To minimize your main thread work, you need to defer them and avoid them from executing right on load, RabbitLoader does this effectively. 

A word of caution here, if you are using any third party script that is critical your website, you might have to avoid from deferring it, as this might cause the visitor to see a non-functional website initially, or if you are using a user tracking service you might lose the tracking data for few initial seconds. 

Hence it is about a balance between speed & functionality when dealing with third party scripts.

Conclusion

We have exploited the 5 ways RabbitLoader minimizes the main thread work. If you are looking for a non-coding for your wordpress, Woo-Commerce, Php or laravel websites RabbitLoader is the answer to your woes, try it now.

FAQ:

How to minimize the main thread work on the WordPress website?

To minimize the main thread work on the WordPress website, you need to use a WordPress plugin like RabbitLoader. Not only WordPress, but you also use RabbitLoader to minimize main-thread work in shopify.

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PHP Minification Made Easy: A  Guide to Optimizing Website Performance

Web developers are constantly looking for ways to optimize the performance of their websites. One effective technique is to minify the code, which involves removing any unnecessary characters and spaces from the code.

 This process can significantly reduce the size of the code, resulting in faster web page loading times. In this blog post, we will discuss how to Minify PHP output and why it is important for faster web page loading times.

We will cover different methods, tools, and best practices that developers can follow to effectively Minify PHP output. 

PHP Minification,PHP

Understanding Minification: 

Minify PHP is the process of removing any unnecessary characters and spaces from code without changing its functionality. The main objective of minification is to reduce the size of the code, which ultimately leads to faster loading times. 

The types of code that can be minified include HTML, CSS, and JavaScript. In addition to reducing the size of the code, minification can also make the code more readable and easier to maintain.

In the context of Minify PHP involves removing unnecessary characters from PHP code, including whitespace, comments, and formatting. This can be done manually, but it’s typically done using an automated tool that is designed to remove unnecessary characters from the code while preserving its functionality.

One of the key benefits of Minify PHP is that it can significantly reduce the size of files, which can result in faster load times. This is especially important for websites that have a large number of files or a lot of code, as it can help reduce the amount of time it takes for a website to load.

 In addition, Minify PHP can help reduce bandwidth usage and improve the scalability of websites, which is important for sites that experience high levels of traffic.

Another benefit of minification is that it can help improve the maintainability of code. By removing unnecessary characters and formatting, the code becomes more concise and easier to read. This can make it easier to identify errors, fix bugs, and make changes to the code in the future.

However, it’s important to note that Minifying PHP can also have some downsides. One of the main challenges of minification is that it can make debugging more difficult, as the code is less readable and harder to understand. In addition, Minify PHP can sometimes cause issues with some browsers or platforms, so it’s important to test the code thoroughly before deploying it.

In summary, minification is the process of removing unnecessary characters from code without changing its functionality. It can significantly reduce the size of files, improve website performance, and make code more maintainable. However, it’s important to use reliable minification tools and follow best practices to ensure that the process is effective and reliable, and to test the code thoroughly before deploying it to production.

Check out: compressing images for the modern Web

Example of HTML Code:

Before Minification
After Minification

Minifying PHP Output: 

PHP is a popular server-side scripting language used to create dynamic web pages. Minifying PHP output involves removing any unnecessary characters and spaces from the code generated by the server. There are several tools and techniques available to Minify PHP output.

  1. Using Online Tools:

There are several online tools available that can be used to Minify PHP code. These tools are simple to use and require no installation. One of the popular online tools for Minifying PHP output is “PHP minify”. The process involves copying and pasting the code into the tool, and then the tool automatically minifies the code. The output is then downloaded and can be used in the project.

  1. Using PHP Libraries:

Another way to Minify PHP output is by using PHP libraries. These libraries are integrated into the project and provide a wide range of features, including Minify PHP. The most popular PHP libraries for minification are “Minify” and “PHP minify”. These libraries can be easily installed and integrated into the project. The process involves passing the PHP code through the library, which minifies the code and returns the output.

  1. Using Command-Line Tools:

Command line tools are other options for Minifying PHP output. These tools are run from the terminal and are designed to be integrated into automated workflows. The process involves passing the PHP code through the tool and then saving the output to a file.

PHP Minification

Importance of Minimizing PHP Output:

Minimizing PHP output is important for several reasons:

  1. Faster Loading Times:

By removing unnecessary characters, whitespace, and formatting from the code, the resulting minified PHP output is smaller in size and loads faster, leading to better website performance.

  1. Improved User Experience:

Slow loading times can negatively impact the user experience, leading to frustration and a higher bounce rate. Minifying PHP output can help ensure that web pages load quickly and smoothly, providing a better user experience.

  1. Reduced Bandwidth Usage:

Minified PHP output requires less bandwidth to transfer over the network, which can be especially important for users with limited data plans or slow internet connections.

  1. Better Search Engine Optimization:

Faster loading times can also improve a website’s search engine ranking, as search engines consider page speed as a factor in their ranking algorithm.

PHP Minification

Overall, Minifying PHP output is a simple and effective way to optimize website performance, improve user experience, and reduce bandwidth usage. 

In addition to Minifying PHP output, it is also important to minify HTML and CSS files to further reduce the size of the files and improve website performance.

HTML and CSS files can also benefit from Minifying PHP in a similar way to PHP code. Minification of HTML involves removing unnecessary white spaces comments and other elements that do not affect the appearance or functionality of the page.

By minifying HTML and CSS files, you can reduce the size of all files and make the website load faster. This can have a significant impact on the user experience, as faster loading times can result in a higher engagement rate and lower bounce rates, in addition, minifying HTML and CSS files can also reduce bandwidth usage and improve the scalability of the website.

Check out: Minify HTML code for PHP

Tips for Testing Minimized PHP Output:

  1. Use a Browser Extension: 

One of the easiest to test your minimized PHP output is to use a browser extension like a web developer. These tools allow you to view the source code of your website and compare the minimized version to the original version. 

This will help you identify any issues with the minimized PHP code.

  1. Use a Code Editor:

Most code editors have built-in tools that allow you to compare two files side by side. You can use this feature to compare the original PHP file with the minimized version. 

This will help you identify any changes that have been made to the code during the minimization process.

PHP Minification
  1. Use a Syntax Checker: 

Another way to test your minimized PHP output is to use a syntax checker. This type of tool will scan your PHP code for any syntax errors and provide you with a report of any issues that need to be addressed. 

By using a syntax checker, you can ensure that your minimized PHP code is error-free and optimized for performance.

  1. Use a Website Speed Testing Tool: 

There are many website speed testing tools available that can help you test the performance of your website, including its load times. 

These tools can help you identify any issues with your minimized PHP output that may be impacting website performance.

php minification

By using these tips, you can ensure that your minimized PHP output is error-free and optimized for performance. Testing is an important part of the development process, and it’s important to ensure that your minimized PHP code is working as expected before deploying it to your website

Best Practices for Minifying PHP: 

Minifying code can be a simple process, but there are some best practices that developers should follow to ensure that the code is minified correctly.

  1. Backup Original Code:

Before minifying any code, it is important to make a backup copy of the original code. This ensures that the original code is still available in case any issues arise.

  1. Avoid Minifying Code in Development 

It is important to avoid minifying code that is still being developed, as this can make it difficult to debug any issues. Wait until the code is stable before minifying.

  1. Avoid Minifying Code Being Shared with Others:

It is important to avoid minifying code that is being shared with others, as it can make it difficult for others to read and understand the code.

  1. Avoid Manual Changes to Minified Code:

To maintain minified code, it is important to avoid making any manual changes to the code. This can break the minification process and make it difficult to maintain the code.

  1. Keep the Minify PHP Tool Up To Date:

It is also important to keep the Minify PHP tool up to date, as newer versions may have additional features or bug fixes.

Conclusion:

In conclusion, Minifying PHP output is an effective way to optimize the performance of web pages. By reducing the size of the code, minifying can significantly improve the loading times of web pages. There are several methods and tools available to Minify PHP output, including online tools, PHP libraries, and command line tools. To ensure that can code is minified correctly, developers should follow best practices, such as backing up the original code, avoiding minification in development, and keeping the Minify PHP tool up to date, with these best practices in mind, developers can efficiently Minify PHP output and create faster and more optimized web pages 

A Guide to Resource Loading and its Importance in Web Development

Resource Loading is a crucial aspect of web development that plays a significant role in the user experience, search engine optimizations, and cross-device compatibility of a website. It refers to the process of fetching and downloading the various elements and resources of a website, such as images, videos, stylesheets, and scripts, from a server to the user’s browser. 

In this blog post, we will delve into the world of Resource Loading and its significance in web development. From explaining what Resource Loading is and how it works to exploring the importance of Resource Loading for user experience, SEO, and cross-device compatibility, this post will provide you with an overview of everything you need to know about Resource Loading. Additionally, we will cover best practices for Resource Loading, common challenges, and solutions to ensure that your website is optimized and runs smoothly.

What is Resource Loading? 

Resource Loading refers to the process of fetching and downloading resources from a server to the user’s browser. The resources loaded on a website can include images, videos, stylesheets, and scripts, among others. These resources are then used to render the website for the user. 

There are two types of resources that can be loaded on a website: blocking and Non-blocking resources. Blocking resources are resources that must be loaded before the page can be displayed, such as stylesheets. Non-blocking resources are resources that can be loaded asynchronously, in parallel with the main page, such as images and scripts. 

The loading process begins when the user requests a page by entering its URL in the browser. The browser then sends a request to the server, which sends back the HTML file, along with any other resources that the HTML file calls for. The browser then parses the HTML file and requests any additional resources that the HTML file calls for, such as images, stylesheets, and scripts. 

Once the resources are fetched and loaded, the browser can display the complete webpage to the user. The loading process can take anywhere from a few milliseconds to several seconds, depending on the style and complexity of the website, as well as the user’s internet connection speed. 

resource loading

Importance of Resource Loading: 

Resource Loading is an important aspect of web development for several reasons, including: 

  1. User Experience and Page Speed: 

The speed at which a website load is crucial for user experience. If a website takes too long to load, users may become frustrated and leave the site, leading to a high bounce rate. This can negatively impact the website’s search engine rankings and overall user engagement.

  1. Search Engine Optimization: 

Search engine optimization (SEO) is the process of optimizing a website to rank higher in search engine results pages (SERPs). One of the factors that search engines use to rank websites is page speed, and this includes the speed at which resources load, a fast-loading website is more likely to rank higher in SERPs than a slow-loading website.

  1. Responsive Web Designs and Cross-Device Compatibility: 

In today’s world, it is important for websites to be accessible on a variety of devices, including desktops, laptops, tablets, and smartphones. Resource Loading plays a crucial role in responsive web design and cross-device compatibility, as the resources must be loaded quickly and efficiently, regardless of the device or connection speed being used.

  1. Performance and Scalability: 

Optimizing Resource Loading can also improve the overall performance and scalability of a website. A slow-loading website can result in high bounce rates, low engagement, and poor user experience, which can have a negative impact on the performance and scalability of the site. 

On the other hand, a fast and efficiently loaded site can ensure that the site is able to handle increasing traffic and provide a positive experience for users.

Resource Loading is an essential aspect of web development that plays a key role in the user experience, SEO, cross-device compatibility, and performance and scalability of a website. By optimizing Resource Loading, you can ensure that your website provides a fast and seamless experience for users and that it is able to perform well and scale as your traffic grows.

resource loading

Measuring Resource Loading: 

Resource Loading can be measured in several ways: 

  1. Page Load Time: 

Page load time is one of the most common metrics used to measure Resource Loading. This metric measures the time it takes for a page to fully load, including all of its resources, such as images, stylesheets, scripts, and fonts. 

Page load time is an important metric as it provides a direct measure of the user experience, as users expect pages to load quickly and efficiently.

  1. Time to First Byte(TTFB): 

Time to first byte (TTFB) is another metric that measures Resource Loading. TTFB measures the time it takes for the first byte of data to be received from the server after a request has been made. 

This metric provides insight into the performance of the server and the efficiency of the resource-loading process.

  1. Page Weight: 

Page weight is a metric that measures the total size of a page, including all of its resources. Page weight is an important metric as it directly affects the page load time, with larger pages taking longer to load.

 By optimizing the page weight, you can reduce the page load time and improve the user experience.

  1. Resource Load Time:

Resource load time is a metric that measures the time it takes for individual resources to load. This metric provides insight into the performance of specific resources that help identify any resource that may be slowing down the page.

  1. Performance Tools:

There are various performance tools available, such as google page speed insights, google lighthouse and GTmetrix, that can be used to measure Resource Loading. These tools provide a comprehensive analysis of Resource Loading, including metrics such as page load time, TTFB, page weight, and resource load time, as well as recommendations for optimizing Resource Loading.

resource loading,website Speed test

Resource Loading can be measured in several ways, including page load time, TTFB, page weight, resource load time, and using performance tools. By measuring Resource Loading, you can gain insight into the performance of your website and identity any areas that need optimization to improve the user experience.

FAQs:

What is a Good Resource Loading Time?

There is no one-size-fits-all answer to what constitutes a “good” Resource Loading score, as this can depend on a variety of factors, including the type of website, its content, and the target audience. 

However, here are some general guidelines to consider when evaluating Resource Loading performance for each of the optimization methods:

Page load time: a page load time of 2-3 seconds is a considered fast 

The number of requests: a lower number of requests can lead to faster page load times.

Page size: a good Resource Loading score would be to keep the page size under 2 MB 

Core web vitals: in addition to the above metric you should also monitor your websites performance against the core web vitals which are the 

First Input Delay 

Cumulative Layout Shift 

Largest Contentful Paint

Best practices for Resource Loading:

To ensure that your website is optimized for Resource Loading, it is important to follow best practices. Some of the best practices include:

  1. Minimizing HTTP Requests:

One of the most effective ways to optimize Resource Loading is to minimize the number of HTTP requests that are made. Each HTTP request adds to the loading time of a page, so reducing the number of requests can significantly improve page speed. To minimize HTTP requests, you can use CSS sprites, combine multiple stylesheets into one, and optimize images by reducing their size and using the appropriate format.

  1. Compression and Minification:

Compression and minification are techniques used to reduce the size of resources, such as stylesheets and scripts, which can result in faster loading times. Compression involves reducing the size of files by removing redundant information, while minification involves removing unnecessary whitespace, comments, and other elements from the code.

  1. Caching and Preloading:

Caching involves storing frequently used resources on the user’s device so that they do not have to be reloaded every time the page is visited. Preloading involves loading resources in the background before they are actually needed so that they are available instantly when required. Both caching and preloading can significantly improve the speed of Resource Loading.

  1. Async and Defer Attributes:

The async and defer attributes can be used to control the loading of resources on a page. The async attribute specifies that a resource should be loaded asynchronously, allowing the browser to continue rendering the page while the resources are being loaded. The defer attribute specifies that a resource should be loaded only after the page has finished parsing, ensuring that the resource does not block the rendering of the page. 

  1. Lazy Loading:

Lazy loading is a technique in which resources are loaded only when they are needed, rather than loading all resources at once. This can significantly improve the loading speed of a page, especially for large and complex websites. Lazy loading can be implemented using JavaScript, allowing resources to be loaded only when they come into view, or as they are requested by the user.

  1. Image Optimization:

Image optimization is another important aspect of Resource Loading. Large and unoptimized images can significantly slow down the loading speed of a page, so it is important to optimize images by reducing their size, using the appropriate format for example JPEG for photos, PNG for graphics, and compressing them if necessary.

Check out: Defer Loading jQuery in WordPress

resource loading

Implementing best practices for Resource Loading is essential for optimizing the performance of your website and providing a better user experience. By reducing the number of requests, reducing the number of requests, minification, compression, etc.

While these optimizations can be done manually, they can be time-consuming and challenging to implement and maintain. Fortunately, there are tools like RabbitLoader available that can automate many of these optimizations for you, saving you time and effort while ensuring that your website is optimized for performance and provides the best possible user experience.

FAQs:

What are async and defer?

Async and defer are attributes that can be added to script tags in HTML to control the loading and execution of JavaScript files.

Async allows the script to be loaded and executed asynchronously, meaning that it does not block the loading of other resources or the rendering of the page. This can result in faster load times.

Defer is similar to async in that it allows the script to be loaded and executed asynchronously however unlike async, the defer attribute guarantees that the scripts marked as defer will be executed in the order in which they appear in the HTML.

Common Challenges and Solutions:

Despite following best practices for Resource Loading, there are still some common challenges that can arise, some of these challenges include:

  1. High HTTP Request Count:

One of the most common challenges in Resource Loading is having a high number of HTTP requests. This can result in a slow-loading website and poor user experience, so it is important to minimize the number of requests by combining resources and optimizing images.

resource loading
  1. Blocking Resources:

Blocking resources, such as stylesheets, can slow down the loading of a page, as they must be loaded before the page can be displayed, to avoid this, it is important to optimize blocking resources by compressing and minifying them, as well as using the async or defer attributes to control their loading.

  1. Large Resource Size:

Large resource sizes can also slow down the loading speed of a page, so it is important to optimize resources by compressing and minifying them, as well as using lazy loading and image optimization techniques.

resource loading

Conclusion: 

In conclusion, Resource Loading is a crucial aspect of web development that plays a significant role in the user experience, SEO., and cross-device compatibility of a website. By following best practices for Resource Loading, and optimizing images, you can ensure that your website is optimized for fast and efficient Resource Loading. Additionally, by being aware of common challenges and solutions, you can troubleshoot any issues that may arise and ensure that your website runs smoothly and efficiently.

What Is First Contentful Paint And How To Optimize It To Pass Core Web Vitals?

Google released First Contentful Paint (FCP) to assess a web page’s initial loading time. To improve your website’s FCP performance, you can either implement optimization strategies like using browser & CDN caching, reducing the HTML, CSS, and JavaScript file size, and removing the unused CSS, or you can install the RabbitLoader performance optimization tool on your website if you are looking for an effortless solution.

First contentful paint

Although First Contentful Paint is not a core web vitals metric, if you need to improve your user experience and pass the Core Web Vitals, you can’t neglect FCP. 

Let’s discuss what you need to know about FCP and explore helpful strategies for optimizing it to pass the Core Web Vitals and boost your Google PageSpeed Insights score of your website. 

What Is the First Contentful Paint?

First Contentful Paint quantifies the time from when a user visits a web page to when the web page’s first content is displayed on the browser. This content can include any images (including the logo and background images), text, any <svg> elements, or non-white canvas.

FCP Matix

FCP is a crucial metric for your user experience & PageSpeed score. When visiting a web page for the first time, if users spot a blank page, they might get confused about whether the website is loading or not. They will likely leave the page or frantically try to reload it.

Difference Between LCP & FCP

As a competent web developer or website owner, it’s essential to understand how the First Contentful Paint (FCP) differs from the Largest Contentful Paint (LCP).    

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Get The Best PageSpeed Score

For Your WordPress Website

All in One Optimization Plugin
No Coding Knowledge Required

Where First Contentful Paint is used to measure the time it requires to display a web page’s first piece of content, Largest Contentful Paint calculates the time it takes to display the largest element of a web page. This largest element can be a hero image or a text block. 

What Is A Good FCP Time?

According to Google, a website’s FCP time needs to be less than 1.8 seconds to pass the core web vitals assessment. If the FCP score is between 1.8 seconds and 3.0 seconds, Google PageSpeed Insights suggests improving the FCP performance to provide a better user experience.

First contentful paint- FCP

Finally, if the FCP time exceeds 3.0 seconds, your website fails the core web vitals test. To be in a green zone, you need to optimize your FCP time to pass the PageSpeed test.   

The Importance Of Optimizing FCP

Before diving into the solution, let’s explore the importance of optimizing FCP performance. 

  • Lower Bounce Rate = Better User Experience

By optimizing your website’s FCP performance, you can significantly increase your user experience. Since FCP makes the first impression on your website, users would be more likely to engage with a well-functioning website. Which results in a lower bounce rate. 

  • Improve The Conversion Rate

The conversion rate determines the percentage of visitors who can successfully finish an action on your website and become a lead or a buyer.  A lower bounce rate is much more likely to increase your conversion rate by engaging the visitors with the website’s content.  

  • Better Organic Rankings

Google always prioritizes the user experience. Therefore, optimizing your FCP time can significantly improve your PageSpeed score which is a strong positive signal for your Google organic rankings.

The Most Common Reasons For Poor FCP Performance 

While several factors can negatively impact the First Contentful Paint (FCP). Let’s focus on the most common reasons for poor FCP performance.   

  • A slow initial server response time

  • Render-blocking JavaScript and CSS files

  • Unused CSS

  • An excessive DOM size 

  • An unoptimized image

How To Optimize Your Website’s FCP?

Let’s explore the optimization techniques to mitigate each of the above mentioned issues that are impacting the FCP to improve the First Contentful Paint time of your website. 

Use Browser & CDN Caching

Using a browser and CDN caching mechanism can significantly reduce the initial server response time and improve the Time to First Byte (TTFB) performance. 

However, adding a browser cache is not enough for web optimization; you need to set efficient caching policies to provide a better user experience and to make sure you are not serving stale content to your visitors.

Manually implementing the browser cache with an efficient caching policy requires extensive technical knowledge. Read our server static assets with an efficient cache policy blog if you wish to explore more on how to do it yourself.  

If you do not wish to go into the nitty gritty of it & just need the issue to be solved, you can install a performance optimization tool like RabbitLoader to implement the browser cache with an efficient caching policy

RabbitLoader also distributes the cacheable content between 300+ edge servers worldwide to reduce the latency.

Reduce The HTML, CSS, And JavaScript File Size

When it comes to FCP optimization, reducing HTML, CSS, and JavaScript file size is one of the most effective strategies to improve the FCP time. There are two ways to reduce these resources’ file size: minification & compression. 

While minification removes unnecessary comments, line breaks, and white space from the resource files, by compressing the method, you can reduce the redundancy of the string variable in the HTML, CSS, and JavaScript files. 

When you use RabbitLoader, you don’t need to put any extra effort into the minification and compression process, RabbitLoader takes care of it.

Reduce unused CSS

The term Unused CSS indicates CSS rules that are not utilized in the current web page design but consume space in your CSS stylesheets. This unused CSS would unnecessarily increase your website’s page size.

Reduce Unused CSS

By removing this unused CSS, you can improve the core web vitals performance, especially the FCP and LCP performance. If you want to remove the unused CSS manually without having proper coding knowledge, it can be risky. One mistake can harm the whole web page’s design.

Therefore, using RabbitLoader would be the safest option if you are not versed in CSS  

Optimize Your First Contentful Paint With RabbitLoader

Web optimization requires a lot of effort and technical knowledge. Thus, many web developers end up using a lot of different WordPress plugins to improve PageSpeed performance. However, using ten different plugins usually harms PageSpeed performance as these plugins conflict with each other.

When you use RabbitLoader, it will implement all the optimization techniques needed to pass the core web vitals and improve your PageSpeed score. Therefore, you don’t need to use other performance optimization plugins, avoiding plugin conflicts and improving PageSpeed performance. 

If you want to seriously improve your website’s PageSpeed performance to provide a seamless user experience, you must install RabbitLoader to improve the First Contentful Paint performance along with the other performance metrics and boost your PageSpeed performance.    

Document

Get The Best PageSpeed Score

For Your WordPress Website

All in One Optimization Plugin
No Coding Knowledge Required

What is Cumulative Layout Shift and the Effective Ways to Optimize it to Improve the PageSpeed Score? 

Google developed the Cumulative Layout Shift metric to measure a webpage’s visual stability. In order to optimize your website’s CLS performance, you can implement strategies such as specifying the image size and optimize the web fonts. 

You can do this using your coding skills, or for an effortless and non-coding solution,you can use RabbitLoader. 

Cumulativa Layout Shift

Have you ever tried to click a button upon loading a website only to see the elements on the page shift around and you end up clicking the wrong button?   

This is caused by a layout shift & this issue seriously harms the user experience of your website. Prioritizing user experience Google developed CLS, a metric to analyze the total layout shift occurring during loading the page and express it in terms of a numeric value.

You can gauge the importance of CLS based on its recognition as one of the 3 pillars of Core Web Vitals. Therefore to achieve a good PageSpeed score, you must optimize your CLS performance.

What is Cumulative Layout Shift?

Cumulative Layout Shift (CLS) is one of the pillar core web vitals metrics that Google developed to measure a web page’s visual stability during the web page rendering. This CLS metric is used to calculate how the visible elements move within the visible area. 

CLS

Imagine this scenario: You want to buy a dress from an online store. You visit the product page of your favorite fashion retailer, and the page begins loading. When you are going to click the buy button, an ad is loaded on the top of the page, and the buy button shifts down. Therefore, you end up clicking the wrong button. This issue is known as an unexpected layout shift, and CLS measures this unexpected layout shift. 

How To Measure Cumulative Layout Shift?

Cumulative Layout Shift is calculated the movement of the unshifted elements based on two factors:

  • Impact Fraction

  • Distance Fraction

What Is Impact Fraction?

Impact fraction calculates how an unstable element impacts the above-the-fold area between two frames. Basically, by calculating the impact fraction you can determine how much area the content occupies above the fold before and after the shifting.  

You can easily calculate the impact fraction by dividing the total viewport area by the area of the layout shift. 

What Is Distance Fraction? 

On the other hand, the distance fraction quantifies the distance the unstable element moved relative to the above the fold. It can be calculated by dividing the dimension of the view-port area by how an unstable element moves in the vertical or horizontal distance. 

By multiplying these two factors: impact fraction and distance fraction you can easily get the Cumulative Layout Shift. 

Cumulative Layout Shift

Let’s understand with an example. If the impact fraction of a web page is 0.60 and the distance fraction of the web page is 0.30, then the Cumulative Shift Layout of that web page is 0.18 (0.60 * 0.30). 

Also, you can measure the CLS in any online pageSpeed analyzing tools like  Google PageSpeed Insights, GTmetrix, and others. 

What is an ideal CLS score?

According to Google, if the CLS score is less than 0.1, it is categorized as a good CLS score. However, if the score is between 0.1 to 0.25, it is considered a moderate CLS score and Google PageSpeed Insights suggests you improve the score for better PageSpeed.

Finally, a score of more than 0.25 indicates that your website fails the PageSpeed performance test. 

CLS score Remarks Color
Less than 0.1GoodGreen 
0.1 to 0.25Needs to improve Orange 
More than 0.25PoorRed 

What are the effective strategies to improve CLS score?

Optimizing Cumulative Layout Shift requires a lot of technical effort. If you want to avoid tiring an expert to do the optimization, the best way to optimize your website for CLS would be to install RabbitLoader.

Let’s see how you can optimize your CLS performance without using any plugins. 

Specify The Size Attribute Of The Images

The best practice is to specify the size attributes for your images, like height and width, of the images so that the modern browser can reserve space before loading them. By doing this, you can prevent the image shifting during the page loading time.    

Size Attribute Of  Images

You can specify the height and width attribute of the image file in the <img> tag in the HTML file. Below is an example,

Syntax:

<img src= “product.jpeg” width=”400”  height=”550”>

Optimize Web Fonts

In order to improve the visual appearance, we add customized fonts to our website, but  it usually harms your website’s PageSpeed performance. You can optimize your web fonts in more than one way. 

Link Preload
  1. You can add a <link rel=preload> attribute in your HTML file. To learn the details about it, go through our previous blog on link preload.
  1. Web-safe fonts are usually pre-installed in the modern browser. Therefore, you can use web-safe fonts to prevent the layout shifting problem in your website. To learn about web-safe fonts, visit our best Google fonts blog. 

Reserve AD Space

Adding ads and promotions to your website can be one of the reasons behind your poor CLS performance. Just like images, you need to specify the height and width to reserve space for the ads.

fix the ad size

For this, you need to add the size and width in the CSS stylesheets. Here’s an example,

Syntax:

<div id="ad-slot" style="min-width: 300px; min-height: 250px;"></div>

Optimize Your CLS Performance With RabbitLoader

As you can see, optimizing CLS manually requires a little bit of technical knowledge. If you are not from a coding background, it can be tough on you. 

RabbitLoader is able to improve the CLS score by reducing impact fraction and distance fraction,, that too without any coding. 

When you optimize your CLS with RabbitLoader, your page will be visually stable. Let’s look at an example.

An e-commerce website, thestudio.com, was struggling with a poor CLS score, which harmed the Google PageSpeed Insights score. After optimizing the website with RabbitLoader, the CLS score became 0 from 0.07 for the mobile version and 0.002 from 0.205 for the desktop version. Optimizing CLS along with other performance metrics improved the PageSpeed score for both versions. For detailed information, please check our case study on thestudio.com.

If you are also trying to optimize your CLS score to improve your PageSpeed & Core Web Vitals, you must install RabbitLoader plugin on your WordPress website. RabbitLoader will not only improve the CLS performance but it would boost other performance metrics and enhance your user PageSpeed & pass the Core Web Vitals. 

Document

Get The Best PageSpeed Score

For Your WordPress Website

All in One Optimization Plugin
No Coding Knowledge Required