RabbitLoader: Lighter, Faster, Better – Transforming Your Blog’s Visuals with Next-Gen Formats

In the ever-evolving realm of web design and user experience, Next-Gen Formats work as a necessity. The importance of visuals cannot be overstated. The images you choose to adorn your blog can captivate visitors, tell stories, and evoke emotions. 

However, the digital landscape is also marked by impatience. Users demand speed, efficiency, and seamless interactions. This is where RabbitLoader steps in, introducing a paradigm shift in how we approach and optimize images for the web.

Next-Generation Image Formats

Imagine a world where images seamlessly blend high quality with fast loading times. This is the realm of next-generation image formats, and RabbitLoader is leading the charge. Among these formats, WebP and AVIF stand out as pioneers, promising a harmonious blend of visual excellence and performance optimization.

Next-Gen Formats

WebP, developed by Google, is a format that employs both lossy and lossless compression to achieve smaller file sizes without compromising quality. On the other hand, AVIF (AV1 Image File Format), developed by the Alliance for Open Media, takes advantage of the cutting-edge AV1 video codec to deliver remarkable compression efficiency.

The advantages of these formats are manifold. Smaller image files result in quicker load times, contributing to an enhanced user experience. RabbitLoader recognizes this potential and integrates these formats to transform the way we present images on the web.

Optimized RabbitLoader Images vs. Unoptimized Images

Below, we present a direct comparison between images that have been optimized with RabbitLoader’s strategy and their unoptimized counterparts. This comparison sheds light on the differences in loading times, visual quality, and user experience:

Next-Gen Formats

Loading Times: Optimized images processed through RabbitLoader’s strategy load noticeably faster than unoptimized images. This speed enhancement contributes to a seamless and engaging user experience.

Visual Quality: Despite the compression, optimized images retain their high visual quality, ensuring that your content remains appealing and professional.

User Engagement: Faster-loading optimized images encourage users to stay on your website longer, explore content, and interact with your blog’s elements.

Mobile-Friendly Advantage: The optimized images are especially advantageous for mobile users, who often experience slower connection speeds. Faster load times on mobile devices lead to a more satisfying browsing experience.

Bounce Rate Reduction: Improved loading times contribute to lower bounce rates, as visitors are more likely to remain on your site when they’re met with fast-loading visuals.

Benefits of Using Next-Gen Formats for Faster Load Times

In the digital age, speed is paramount. Slow-loading websites can frustrate users and lead to higher bounce rates. This is where RabbitLoader’s commitment to next-gen formats becomes pivotal.

Next-Gen Formats

a. Enhanced User Experience: The cornerstone of RabbitLoader’s approach is the commitment to user experience. By employing next-gen formats, such as WebP and AVIF, images load swiftly, reducing the waiting time for users and keeping them engaged.

b. Reduced Bandwidth Consumption: The adoption of next-gen formats results in smaller file sizes, which, in turn, reduces the bandwidth required to load images. This is a critical advantage for users on slower internet connections or mobile devices.

c. Lower Bounce Rates: Slow-loading websites are notorious for high bounce rates. RabbitLoader’s optimization strategy directly addresses this issue by ensuring that visitors are greeted with a seamless and visually pleasing experience.

d. Improved SEO Performance: Search engines consider page speed as a ranking factor. RabbitLoader’s integration of next-gen formats not only benefits users but also contributes to improved search engine rankings, potentially leading to increased visibility.

e. Flexibility with Transparency and Animation: While formats like JPEG and PNG have their merits, next-gen formats introduce new possibilities. WebP, for example, supports both transparency and animation, allowing for more creative and engaging visuals.

RabbitLoader’s dedication to faster load times through next-gen formats presents a powerful case for their adoption. The benefits extend beyond mere aesthetics, impacting user engagement, SEO, and overall website success.

Comparative Analysis of Next-Gen Formats vs. Traditional Formats

The transition from traditional formats to next-gen formats might seem like uncharted territory for some. However, a comparative analysis reveals the transformative potential that RabbitLoader’s approach brings to the table.

JPG to webp

a. Compression Techniques: Traditional formats like JPEG and PNG have long been the go-to choices for images. However, these formats use compression techniques that can sometimes result in larger file sizes, affecting load times. RabbitLoader’s embrace of next-gen formats introduces more efficient compression algorithms, allowing for smaller files without compromising quality.

b. Quality Retention: A common concern with image compression is the potential loss of quality. RabbitLoader’s integration of WebP and AVIF addresses this concern. These formats prioritize maintaining image quality while achieving compression, resulting in visuals that are both stunning and efficient in terms of loading times.

c. Transparency and Animation: While traditional formats serve their purposes, they lack the flexibility of next-gen formats. WebP, for instance, supports both transparency and animation, opening up new avenues for creative expression on your blog.

d. Browser Compatibility: An important consideration when adopting new formats is browser compatibility. RabbitLoader ensures that the formats it adopts are well-supported by modern browsers, reducing the concerns associated with transitioning to newer technologies.

e. File Size Reduction: One of the primary goals of image optimization is to reduce file sizes. Next-gen formats consistently outperform traditional formats in this regard, leading to faster loading times and an improved user experience.

f. Technical Advancements: AVIF, in particular, showcases the technological advancements that next-gen formats bring. With its use of the AV1 video codec, AVIF takes compression efficiency to new heights, setting the stage for even more impressive image optimization.

By offering a comparative analysis, RabbitLoader empowers users to make informed decisions about transitioning to next-gen formats. The technical advantages, combined with the commitment to user experience, make a compelling case for embracing these formats.

Stay tuned as we continue our exploration of RabbitLoader’s transformative approach to next-gen image formats. In the next section, we’ll guide you through the step-by-step process of converting and implementing these formats on your blog.

Step-by-Step Guide to Converting and Implementing Next-Gen Images

The prospect of transitioning to next-gen image formats might seem daunting, but RabbitLoader is dedicated to making this process as seamless as possible. In this section, we’ll provide you with a step-by-step guide to help you convert and implement these formats effectively.

Converting and Implementing Next-Gen Images

a. Assessment of Existing Images: Before you embark on the conversion journey, it’s essential to assess your existing image library. Identify the images that could benefit the most from optimization. High-resolution images or those with large file sizes are prime candidates for conversion.

b. Choose the Right Conversion Tool: RabbitLoader recommends using reputable conversion tools specifically designed for WebP and AVIF. Many online converters and software applications can facilitate this process. Choose a tool that aligns with your technical expertise and needs.

c. Batch Conversion: If you have a substantial number of images to convert, consider using batch conversion tools. These tools allow you to convert multiple images simultaneously, saving you time and effort.

d. Back Up Original Images: Before initiating the conversion process, create a backup of your original images. This precaution ensures that you have a fallback option in case you encounter any issues during or after conversion.

e. Conversion Settings: Different conversion tools offer various settings for image quality, compression, and format-specific features. Experiment with these settings to find the balance between image quality and file size that suits your blog’s aesthetics and performance goals.

f. Testing and Quality Control: Once the conversion is complete, it’s time to test the images on different devices and browsers. Ensure that the quality meets your standards and that the loading times are indeed improved. RabbitLoader emphasizes the importance of maintaining a high visual standard while optimizing for performance.

g. Integration into Your Blog: Implementing next-gen images involves replacing the old image files with their converted counterparts. This step might require adjustments to your blog’s code or content management system. If you’re unfamiliar with coding, RabbitLoader suggests seeking assistance from a developer or utilizing user-friendly plugins.

h. Testing in Staging Environment: Before rolling out the changes to your live website, consider testing the new images in a staging environment. This ensures that any unforeseen issues are addressed before impacting your site’s user experience.

i. Monitor and Iterate: After implementation, monitor your blog’s performance closely. Track metrics related to page speed, user engagement, and conversion rates. If needed, iterate on your image optimization strategy to achieve the desired results.

RabbitLoader’s step-by-step guide makes the transition to next-gen formats accessible to bloggers of all technical levels. By following these instructions, you can enhance your website’s speed and aesthetics without the headache of a steep learning curve.

Impact of Next-Gen Formats on Page Speed and User Engagement

The world of online content is in a constant state of evolution, and the demand for faster, more engaging experiences continues to shape user expectations. RabbitLoader’s dedication to next-gen image formats extends beyond the technical realm—it’s about delivering a superior user experience that keeps visitors coming back for more.

Next gen format on Page Speed

a. Page Speed Revolution: Slow-loading websites are a frustration users face all too often. RabbitLoader recognizes that page speed is not just a luxury but a necessity. By adopting next-gen formats, such as WebP and AVIF, RabbitLoader drastically reduces load times. This optimization can be the defining factor in captivating user attention and reducing bounce rates.

b. Enhanced User Engagement: User engagement encompasses everything from click-through rates to time spent on your blog. When images load quickly and seamlessly, users are more likely to explore your content, interact with your calls to action, and share your posts. RabbitLoader’s commitment to faster load times directly contributes to improved user engagement metrics.

c. Lower Bounce Rates: The frustration of waiting for images to load can lead users to abandon a website altogether. RabbitLoader’s strategy addresses this issue head-on. By ensuring that images load swiftly, visitors are more likely to stay on your site, explore different pages, and engage with your content.

d. Mobile-Friendly Experience: In an era dominated by mobile devices, providing a mobile-friendly experience is paramount. RabbitLoader’s integration of next-gen formats aligns perfectly with the mobile-first mindset. With smaller file sizes and faster load times, your blog becomes accessible and enjoyable for mobile users.

e. Conversion Optimization: Whether you’re promoting products, services, or subscriptions, conversions are a crucial goal. Slow-loading pages can deter users from completing desired actions. RabbitLoader’s focus on speed can directly impact your conversion rates, translating into tangible business outcomes.

f. Positive Impact on SEO: Search engines prioritize user experience, and page speed is a significant factor in this equation. Faster-loading pages, thanks to RabbitLoader’s adoption of next-gen formats, can lead to improved search engine rankings, further enhancing your blog’s online visibility.

RabbitLoader’s commitment to delivering a superior user experience through next-gen formats goes beyond technical jargon—it’s about building connections, capturing attention, and fostering engagement. The next section will explore how this commitment translates into SEO advantages and an improved user experience.

SEO Advantages: Improved Rankings and User Experience

In the dynamic landscape of digital marketing, search engine optimization (SEO) is a crucial strategy for improving online visibility and driving organic traffic to your blog. RabbitLoader’s embrace of next-gen image formats not only enhances user experience but also provides a unique advantage in the realm of SEO.

SEO improvements on Page Speed

a. Page Speed as a Ranking Factor: Search engines like Google consider page speed as a ranking factor. Websites that load quickly offer a better user experience, and search engines want to direct users to pages that provide value. RabbitLoader’s focus on faster load times aligns perfectly with this SEO principle.

b. Reduced Bounce Rates: High bounce rates—users leaving a website shortly after arriving—are detrimental to both user engagement and SEO. By adopting next-gen formats, RabbitLoader creates an environment where visitors are more likely to stay on your site, explore multiple pages, and engage with your content.

c. Mobile-Friendly Experience: Mobile-friendliness is a critical factor in modern SEO. As mobile device usage continues to rise, search engines prioritize websites that offer a seamless mobile experience. RabbitLoader’s integration of next-gen formats enhances mobile load times, contributing to a mobile-friendly website.

d. User Experience Signals: Search engines value positive user experiences. When users interact positively with your website, it sends signals to search engines that your content is relevant and valuable. Faster load times, made possible by RabbitLoader’s next-gen formats, contribute to these positive signals.

e. Dwell Time Enhancement: Dwell time, or the amount of time a user spends on a webpage before returning to the search results, is another SEO metric. A fast-loading website encourages users to stay longer, consuming more content and increasing dwell time.

f. Competitive Edge: Embracing next-gen image formats sets your blog apart from competitors who might not have optimized their images for speed and quality. This competitive edge can lead to better rankings and increased organic traffic.

RabbitLoader’s commitment to SEO excellence goes hand in hand with its dedication to delivering a superior user experience. By integrating next-gen formats and optimizing load times, RabbitLoader positions your blog to shine not only in user engagement but also in search engine rankings.

Tools and Plugins for Seamless Integration of Next-Gen Images

In the world of web development, efficiency is key. RabbitLoader understands that adopting next-gen image formats should be a streamlined process, accessible to bloggers of all technical levels. This is where the selection of tools and plugins for seamless integration comes into play.

Tools and Plugins for Seamless Integration of Next-Gen Images

a. Conversion Tools: RabbitLoader recommends a variety of conversion tools that simplify the process of converting images to next-gen formats. These tools often provide user-friendly interfaces, allowing bloggers to upload images and receive optimized versions with just a few clicks.

b. Image Optimization Plugins: For those using content management systems like WordPress, plugins can be invaluable. RabbitLoader highlights plugins that automate the process of optimizing images on your blog. These plugins often include batch optimization features, ensuring that your entire image library benefits from next-gen formats.

c. Lazy Loading Plugins: Lazy loading is a technique that loads images as users scroll down the page, rather than all at once. RabbitLoader suggests plugins that complement next-gen formats by integrating lazy loading functionality, further enhancing your website’s performance.

d. CDNs with Image Optimization: Content Delivery Networks (CDNs) can significantly improve website speed by distributing content across multiple servers. Some CDNs offer built-in image optimization features, which can work seamlessly with RabbitLoader’s strategy.

e. Browser Compatibility Tools: Ensuring that next-gen images are displayed correctly across various browsers is crucial. RabbitLoader recommends browser compatibility testing tools that help you identify and address any potential issues.

f. Analytics Tools: Tracking the impact of next-gen formats on your website’s performance is essential. RabbitLoader suggests analytics tools that provide insights into page speed, user engagement, and conversion rates, allowing you to measure the effectiveness of your optimization efforts.

RabbitLoader’s commitment to accessibility extends to the tools and resources it recommends. By providing a range of options for bloggers of all technical backgrounds, RabbitLoader empowers you to seamlessly integrate next-gen images into your blog, enhancing both aesthetics and performance.

Real-world examples of Websites Benefiting from Next-Gen Formats

The true power of any strategy lies in its real-world impact. RabbitLoader’s approach to next-gen image formats is no exception. In this section, we’ll explore concrete examples of websites that have embraced RabbitLoader’s strategy and reaped the rewards.

Real-world examples of Websites Benefiting from Next-Gen Formats

a. E-commerce Success: Imagine an online store where product images load almost instantly, offering customers a seamless shopping experience. Many e-commerce websites have embraced RabbitLoader’s approach, resulting in decreased bounce rates, increased conversions, and ultimately, higher revenue.

b. News and Media Sites: News articles often feature a plethora of images, which can slow down page loading times. Websites in the news and media sector that have adopted RabbitLoader’s strategy witness improved user engagement. Visitors can navigate articles swiftly, enhancing their overall reading experience.

c. Portfolio and Photography Websites: For photographers and artists, showcasing their work is essential. Next-gen image formats allow portfolio websites to present high-quality visuals without compromising loading times. This leads to greater user appreciation of the artwork and a memorable browsing experience.

d. Travel Blogs and Destination Guides: Travel blogs often include a combination of text and captivating imagery. Websites in this genre that prioritize faster load times through RabbitLoader’s strategy create a user-friendly platform for travellers to explore destinations and plan their trips.

e. Corporate Websites: Corporate websites are digital representations of a company’s identity. Those that have integrated next-gen image formats not only offer a professional appearance but also impress users with their fast-loading visuals, establishing trust and credibility.

f. Blogs and Content Platforms: Finally, blogs and content-focused websites across various niches have experienced tangible benefits from RabbitLoader’s approach. Faster load times enhance the overall reading experience, encourage longer time spent on the site, and ultimately foster a loyal readership.

These real-world examples underscore the versatility and effectiveness of RabbitLoader’s strategy. From e-commerce to news and everything in between, the impact of faster load times through next-gen image formats is evident in enhanced user experiences, improved engagement metrics, and ultimately, the success of the website.

Download: RabbitLoader Plugin

Revolutionize Your Blog with RabbitLoader’s Next-Gen Image Formats

RabbitLoader’s embrace of next-gen image formats like WebP and AVIF signifies a transformative leap forward in web optimization. Beyond aesthetics, these formats enhance user experience, reduce bounce rates, and amplify engagement. With a seamless integration process, SEO advantages, and real-world success stories, RabbitLoader empowers you to create a visually stunning and high-performing blog. Embrace RabbitLoader’s strategy to unlock a future where speed and quality coexist harmoniously, propelling your blog into the forefront of online excellence.

RabbitLoader vs Imagify: A Comparison of WordPress Plugins for Optimizing Image Loading

When it comes to optimizing your WordPress website’s loading speed, there are several plugins available to help you do so. Two of the most popular options are RabbitLoader and Imagify, both of which focus on optimizing images to reduce page loading times.

But which plugin is right for you? In this article, we’ll take a closer look at RabbitLoader and Imagify, comparing their features and advantages so that you can make an informed decision about which one to use.


Why Use Plugins for Your WordPress Website?

WordPress speed optimization plugins are tools that can help improve the speed and performance of your WordPress website. There are several reasons why you should consider using a WordPress speed optimization plugin, including:

  1. Faster Loading Times:

A speed optimization plugin can help reduce the loading time of your website. A fast-loading website not only provides a better user experience but also improves your website’s search engine rankings.

  1. Improved User Experience: 

Visitors to your website are more likely to stay and engage with your content if your website loads quickly. A speed optimization plugin can help reduce the bounce rate of your website and increase user engagement.

  1. Better Search Engine Rankings: 

Website speed is a critical factor in search engine rankings. Google and other search engines prefer websites that load quickly, and a speed optimization plugin can help improve your website’s ranking in search results.

  1. Optimization for Mobile Devices: 

More people are browsing the internet using mobile devices than ever before. A speed optimization plugin can help optimize your website for mobile devices, ensuring that your website loads quickly on smartphones and tablets.

  1. Easy to Use: 

Many speed optimization plugins are easy to install and configure, requiring no technical expertise. This means that even if you’re not a developer, you can still improve the speed and performance of your website.

In summary, using a WordPress speed optimization plugin can help improve the overall performance of your website, increase user engagement, improve search engine rankings, and optimize your website for mobile devices.

See more: Core Web Vitals

RabbitLoader: A Plugin with the Feature of Lazy Loading Images and Videos:

RabbitLoader is a powerful plugin that focuses on lazy loading images and videos to improve your website’s loading speed. When you enable this plugin, images and videos are only loaded when needed, not all at once when the page loads. This can significantly reduce the loading time of your website, particularly on mobile devices, where slow-loading websites can be frustrating for visitors.

One of the most significant benefits of RabbitLoader is its ease of use. The plugin is straightforward to install and activate, and it automatically applies lazy loading to all the images and videos on your website, without any further configuration needed. This makes it a convenient option for website owners who want to improve their website’s performance without much effort.

Another advantage of RabbitLoader is that it is lightweight and does not add much extra code to your website, ensuring that it does not slow down your website. This can help keep your website’s loading speed high and prevent any negative impact on your SEO rankings. Moreover, RabbitLoader has a minimalistic design that ensures your website’s aesthetics remain intact while enhancing its loading speed.

Additionally, RabbitLoader offers excellent compatibility with various WordPress themes and plugins. This means that you can use RabbitLoader without worrying about conflicts with other plugins, ensuring that your website runs smoothly.

In Summary, RabbitLoader is an excellent option for website owners who want to optimize their website’s loading speed without sacrificing aesthetics or website performance. With its easy-to-use interface, lightweight design, and compatibility with various WordPress themes and plugins, RabbitLoader offers a complete solution to improve your website’s loading speed. It is a superior plugin to Imagify, which focuses on image compression and may not significantly impact website loading speed.

RabbitLoader, Imagify


How Does RabbitLoader Improve Website Performance Beyond Image Optimization?

RabbitLoader is a JavaScript loading library that uses an asynchronous approach to load JavaScript files. This means the browser can load multiple files simultaneously, resulting in faster page load times and a better user experience.

Must Check: Preload Fonts

Imagify: A Plugin for Image Optimization

While Imagify does offer some useful features, it’s important to note that it doesn’t address the issue of lazy loading. By only focusing on image compression, it may not have as significant of an impact on overall website loading speeds as RabbitLoader. 

Additionally, while Imagify claims to compress images without losing quality, some users have reported that there is a noticeable decrease in image quality when using the plugin. This could potentially detract from the overall aesthetic of your website.

Furthermore, while Imagify does offer customization options, it may require more effort and technical know-how to properly configure than RabbitLoader, which automatically applies lazy loading to all images and videos without the need for user input.

Overall, while Imagify may be a decent option for some websites looking to optimize their images, RabbitLoader’s focus on lazy loading and ease of use make it the superior choice for most users looking to improve their website’s loading speeds.

Image compression,imagify


What are the Limitations of Imagify?

Imagify only addresses the issue of image compression and may not have as significant of an impact on overall website loading speeds as RabbitLoader. Additionally, some users have reported that there is a noticeable decrease in image quality when using the plugin.

Improving Website Performance Beyond Image Optimisation:

While optimizing images is a crucial step in improving website performance, other factors can impact the speed and user experience of a website. One such factor is the loading time of JavaScript files.

Traditionally, JavaScript files are loaded synchronously, which means that the browser waits for one file to finish loading before moving on to the next. This can result in slow page load times, especially for websites with large amounts of JavaScript code.

Fortunately, there are tools available that can help to improve the loading time of JavaScript files. One such tool is RabbitLoader.

This means the browser can load multiple files simultaneously, resulting in faster page load times and a better user experience.

Additionally, RabbitLoader has several other features that can further improve website performance. For example, it can intelligently preload files based on user behaviour, reducing the time it takes for pages to load when users navigate between them. It can also defer the loading of non-critical JavaScript files, allowing the browser to prioritize the loading of important files and further improve performance.

Overall, RabbitLoader is a powerful tool that can help website owners to optimize the loading time of JavaScript files and improve the performance of their websites. By using RabbitLoader, website owners can ensure that their websites are fast, responsive, and provide an excellent user experience.

imagify, lazy Loading

Which One Should You Choose?

While both RabbitLoader and Imagify are useful plugins for optimizing image loading on your WordPress website, RabbitLoader stands out in several ways.

Firstly, RabbitLoader improves website performance by lazy loading images and videos, which means that they are loaded only when needed, instead of all at once. This can significantly reduce page loading times, especially on mobile devices, and improve user experience.

Secondly, RabbitLoader is very easy to use, with no complicated setup or configuration required. Once installed and activated, the plugin automatically applies lazy loading to all images and videos on your website, without adding any significant extra code to your website.

Additionally, RabbitLoader is very lightweight, which means that it won’t slow down your website or negatively affect your SEO rankings. In contrast, Imagify focuses primarily on image compression and optimization, which may not address all the performance issues related to image loading.

if you are looking for a simple and effective way to optimize image loading on your WordPress website, RabbitLoader is a great choice. It provides easy-to-use and lightweight lazy loading functionality that can significantly improve your website’s loading speed and user experience.

On the other hand, Imagify focuses primarily on image compression and optimization, which may not address all the performance issues related to image loading. While image compression is important, it’s not the only factor that affects website performance.

One of the key advantages of RabbitLoader over Imagify is its ease of use. Once installed and activated, RabbitLoader automatically applies lazy loading to all images and videos on your website, without requiring any complicated setup or configuration. In contrast, Imagify offers more customization options but requires more setup and configuration to get the most out of the plugin.

Another advantage of RabbitLoader is its lightweight nature. The plugin doesn’t add a lot of extra code to your website, which means it won’t slow down your website or negatively affect your SEO rankings. This is important, as a slow website can have a significant impact on user experience and search engine rankings.

In summary, if you’re looking for a simple and effective way to optimize image loading on your WordPress website, RabbitLoader is the better choice. Its lazy loading functionality is easy to use, lightweight, and can significantly improve your website’s loading speed and user experience.


How do I Install and Activate RabbitLoader?

To install and activate RabbitLoader, go to your WordPress dashboard’s “Plugins” section and search for the plugins. Click “Install” and then “Activate” for each plugin. RabbitLoader will automatically apply lazy loading to your images and videos, while Imagify will optimize the compression of those images.

Lazy Loading

Conclusion : 

In conclusion, optimizing image loading is a crucial factor in improving website performance and user experience. WordPress website owners can access various plugins to help them achieve this, including RabbitLoader and Imagify. However, RabbitLoader emerges as the better choice for website owners looking for an easy-to-use, lightweight, and effective solution to optimize image loading on their websites. 

Check more: Eliminate Render-Blocking Resources

Its lazy loading feature significantly reduces loading times, especially on mobile devices, without compromising the aesthetics or performance of the website. On the other hand, while Imagify may be useful for image compression and optimization, it may not address all performance issues related to image loading, and its configuration may require more technical know-how. 

In summary, RabbitLoader’s simple and efficient approach to optimizing image loading makes it the superior choice for most WordPress website owners.

3 Exclusive Easy Ways to Defer Offscreen Images and Videos to Load Pages Faster

Defer Offscreen images or videos are the ones that are positioned outside the screen (viewport) and hence not visible on the screen when a visitor loads a webpage. By indicating the browser not to load the resources currently outside the visible screen area, page load time can be improved.

Loading offscreen resources may affect user experience by downloading data that isn’t immediately required.


A massive performance boost can be gained as the media elements contain graphics and are commonly the heaviest resources on any page. Smart lazy-loading also called deferred loading is the solution to such problems on a website.

What Will Happen If Offscreen Images Are Not Deferred?

If you don’t defer offscreen pictures, all such assets of your webpage will load at once when one loads your webpage. It will increase page load time, which will eventually lower user experience and performance score. Let’s explain it with an example.


Let’s imagine your webpage has 15 images and 2 of them are on the front fold. Now if a user visits your website. All 15 images will load at once even if only 2 images are visible and others are below the fold. Your whole HTML structure will block and nothing will render until all the images and other things are completely loaded.

Benefits of Defer Offscreen Images:

Decrease page load time:

Defer Offscreen Images decreases page load time as it loads only the visible images and hence reduces the number of images that need to be loaded. So, your webpage’s HTML structure will not be blocked. Because of this process, the rendering time also decreases.

Saving time and money:

The visitor can only view the generated images if they need them. The user who bounces immediately or doesn’t scroll down will have fewer bytes delivered to their computer. It is literally possible to save money by lazy loading if your CDN provider charges by data transfer and HTTP requests. Those on limited data plans can also save money by lazy loading.

Smart work:

Lazy loading saves computing power and processing time to render a webpage hence saving battery life for hand-held devices such as smartphones or tabs.

Up SEO Ranking:

As the load time decreases and also the site speed increases, the user experience will get better. This will take your website up to the SEO ranking.

Got the point. How to achieve it?

Method 1- use RabbitLoader

The easiest ad best way to defer the loading of resources is to use RabbitLoader on your website. If you are using WordPress, consider trying our free plugin to lazy load images with several other features to score best in Google PageSpeed Insights. Our services can be used for other platforms, including your in-house developed websites with PHP/ASP/NodeJs, etc.

  • Our service can defer pictures used in <img> tags as well as background images by automatically detecting and removing defer offscreen images from the critical rendering path.
  • We can lazy load many other heavies on network media embeds or Iframes such as Google Maps, YouTube/Vimeo videos and load them after the webpage is loaded and rendered.
  • We can lazy load iframes used for lead generation or other marketing forms and make sure they can still be served to visitors as soon as possible
  • Help save your server’s bandwidth or CDN cost as some resources are never loaded if the user doesn’t scroll till that point

I am a geek, suggest me some other ways-

Nice to meet you. We are happy to discuss some of the modern methods we are using internally to best optimize the payload served from our client’s websites. We have discussed in the past how to reduce the image size without losing its quality, and in this post, we are going to focus on various loading techniques to separate out critical and non-critical elements and make the best use of the bandwidth and computation power available on the visitor’s device.

Our research starts from the key idea that only those media elements should be loaded with a high priority which is displayed inside of the viewport. And we know for sure, any such resource requested after TTI (Time to Interactive is the point after which a webpage is capable of reliably responding to user inputs.) is not flagged as a violation in the Lighthouse audit.

Method 2- use “loading” HTML attribute

The <img> tag which is used to embed an image into the document now supports a new attribute called “loading” which tells the browser how the source specified for this element should be loaded. The “loading” attribute is optional and can have two possible values if present-

  • loading = "eager” – If this value is set, the browser loads the image immediately irrespective of the element’s visibility or the position with respect to the viewport
  • loading = "lazy" – The image loading is deferred till the browser thinks that the element is going to be visible soon. Typically it happens when a user scrolls the page and reaches a point precalculated by the browser when the load triggers.


<img loading="lazy" src="example.webp" alt="image-example" class="img-css-rules">
Defer Offscreen images

Challenges with this approach-

  • For every page, it’s a tedious task to identify pictures appearing above and below the fold and set the appropriate value for the ‘loading’ attribute in advance
  • One size can not fit all. The page may have pictures placed in such a way that on a desktop browser, 6 images appear above the fold, but on a mobile browser, only 3 pictures are appearing on the screen. This attribute can not help you in this situation.
  • You can take the help of JavaScript to set the appropriate values but that may increase the load on the main thread and thus increase the TBT (total blocking time) score of the Lighthouse audit.
  • The feature is not yet supported by some browsers. For a full list of supported browsers with their versions, see the below table.

Browser Compatibility for loading HTML attribute

This feature is now supported by almost all modern browsers except IE, Safari, and Firefox for Android. All Chromium-based browsers may not support it below version 77.

Image credit –mozilla

Method 3- attach JS listener to elements visibility event

The Intersection Observer API can let your JavaScript listener function know when exactly an element might be entering to viewport or in close proximity. You can then modify the DOM to set the correct source to load the media. This API gives you a superfine control to adjust margins around the viewport to give you buffer time to load the resources without the user observing any broken experience.


This JavaScript API is used by many plugins along with a fallback or polyfill to lazy load elements on the webpage. You can go on writing it on your own or can pick a plugin like lazysizes and get started quickly.


The below example covers the basic concepts of using this API for an HTML page-

See the Pen Lazy loading images using IntersectionObserver – example code by ImageKit.io (@imagekit_io) on CodePen.

Browser Compatibility for Intersection Observer

This feature is now supported by almost all modern browsers except IE. You can use a polyfill available for Intersection Observer.

Image credit –mozilla

Things to take care of when lazy loading resources

  1. Consider using a placeholder image of small size but similar dimensions to the original image to avoid layout reflow and calculation which is expensive
  2. It’s not a good idea to lazy load images appearing above the fold which should be visible to the user as soon as the page is loaded. This can also impact the CLS score of Core Web Vitals.
  3. Heavy JS functions written to achieve this goal can increase the load on the browser’s main thread and impact the user’s interaction
  4. If a visitor scrolls the page too fast, they may reach a point where the media is still to be loaded. You need the right balance and observe interactions carefully.

For Rabbit Loader users, we have added this as an opt-in feature where iframes and pictures can be routed via our CDN and lazy-loaded in the best possible way across browsers without site owners putting any extra effort. Once enabled, defer offscreen images used in a webpage can be automatically deferred to boost page loading time and improve the speed index.

3 Popular ways of compressing images for the modern Web

According to a report, of all the web page traffic, 65% of bandwidth is consumed by images during a load of a typical web page. This makes us realize how important it is to optimize the image size while maintaining its quality. Let’s see what choices we have to serve these images and photos.

One way is to use Lazy loading of images or other resources, which is now well known and used by many site owners. While it can defer loading non-critical resources on the page, the size of resources will still be the same and can break the experience for users on a slow network or can add to bills for metered connection.

Another way is to use an appropriate image format. There are hundreds of image file types and some of them are very popular on the web including JPEG, PNG, GIF, etc. Most of these common image formats are based on technology that is now a few decades old. For example, if we talk about JPEG, which is a very common and most widely used lossy image compression format even in the current era was developed in 1992, 28 years ago. It was adopted by web developers and digital camera manufacturers as a default choice for storing images as the compression algorithm was most suitable for images and photographs where the content has smooth variations of tone and color.

So, what is new?

Way back in 2010, a team at Google came up with another research where they found a better compression can be achieved for lossy images, and in a trial of around 1 million images, they could achieve a savings of 39% without compromising the visual quality. The new format was named WebP and with this promise, they made a tool available for developers to convert images to WebP format and also started supporting the new format in the WebKit engine.

WebP lossy images are 25-34% smaller than comparable JPEG images at equivalent SSIM quality index.


Do I need this?

There are high chances you might already be using images on your page. If yes, you can head on to PageSpeed Insights and check the potential savings this can bring under the ‘Opportunities’ section.


Impressed. How to achieve this?

Most popular browsers including Google Chrome, Microsoft Edge, Firefox and Opera support this. Besides these, any browser which is based on the WebKit engine has native support for WebP. You can check current browser support here. As there are many browsers that do not support this format, the implementation is not straightforward. However, if you are using RabbitLoader, you may skip the below section as this is taken care of in a very robust way for our users.

Here are some ways you can choose to detect browser compatibility before serving the image. But in all three scenarios, you need to take care of the conversion of the source image to WebP format.

  1. You can read the “Accept” headers sent by browsers to check the support and serve the image accordingly. If image/webp is present in the “Accept” header value sent by the browser to the server, your backend or server-side script can server WebP content. Rabbit Loader uses this method to detect browser support and serve the original image as a fallback for non-supported browsers.
  2. The HTML <picture> element can be used to provide many sources for a single picture. Here you can add WebP format along with JPEG, PNG or other formats. The browser will choose the best match to display the image. If you want to explore this, go through the MDN guide for the picture element.
  3. Once a page is loaded, run a JavaScript from Modernizr or a similar library to detect image formats supported by the browser and then change the URL in the “src” attribute based on the result. This technique is not recommended as it will introduce a significant delay in loading images and may increase CLS because the page is already rendered.

For RabbitLoader users, we have added this as an opt-in feature where images are optimized without site owners putting any extra effort. Once enabled (See: how to enable image conversion to WebP), images used in a webpage can be automatically converted to WebP on the fly to boost page loading time and speed index. If the encoding is not supported by the browser, automatic fallback happens to the original source.