SEO Lazyload

SEO Lazyload for Shop-Script

Lazy loading images and iframes

3.4 5 ratings

7 days free

To install free, open the plugin in the Installer app in your Webasyst backend. Free trial is available in the Webasyst Cloud only.

Your review

Plugin "Lazyload" Postpones the loading of images and iframes until they are in the user's scope. This reduces the number of HTTP requests and reduces site load time.

The main difference between this plugin and most similar plugins is SEO-optimization out of the box. The "src" attribute always remains on images, so the crawler will correctly index your site's images, even if JavaScript is disabled.

The plugin works not only on Shop-Script X, but also on earlier versions.

This plugin belongs to our series of plugins "SPEED" if you want to speed up your site, take a look at other plugins in the same series: Super Cache, Responsive Images PRO


  • Speed ​​up website loading
  • Improve PageSpeed ​​Insights by fixing the "Delay loading hidden images" metric. More...
  • Optimized for SEO (the “src” attribute always remains with images, so the search robot will correctly index your site's images, even if JavaScript is disabled)
  • The weight of the script is only 4kb
  • Support for LQIP (low quality image placeholders), which can reduce the size of images during loading by about 10 times and not get a jump in site content. (it is possible to automatically create lqip using the plugin Responsive Images PRO)


  • Uses relatively new technology “Intersection Observer API”, so older browsers and IE are not supported
  • For Iframe, it is possible to use lazy loading with a facade. More ...
  • When used with a plugin Responsive Images PRO Lazy load must be installed after it


  • Prohibiting work on certain pages
  • Exclude selected images
  • Configuring element preloading
  • Working with HTML tags and background images added via CSS
  • Autodescribing image dimensions after upload

Getting Started:

In the plugin settings, click "Activate plugin" - the plugin is ready to use.

After activating the plugin, you need to check the correctness of displaying images, for those images that are not displayed correctly, you must disable lazy loading.

Plugin operation and recommendations:

When other JS-scripts affect images and iframes, the plug-in's algorithm may be broken, in which case the plug-in is not guaranteed to work.

The plugin does some manipulation of images and iframes, so the load on the server increases slightly, but by performing lazy loading this is fully compensated.

The plugin is most effective when the largest number of images and iframes are outside the primary scope (first screen), then PageSpeed ​​Insights can increase significantly.

3 ways to test the work:

  1. Go to any of the pages of the Store application. Open your browser console and find images (html img tag). The data-loaded = "true" attributes should be added as the page scrolls.
  2. Go to any of the pages of the Store application. Open the browser console, go to the "Network" fold, select the "Images" type, the list of images in the console should expand as you scroll the page.
  3. Analyze the site with PageSpeed ​​Insights, the "Delay loading hidden images" metric should be green.

Technical support:

  • Technical support is provided at:
  • Working hours (Moscow time): 10:00 - 18:00 Mon-Fri on Russian working days
  • Technical support includes: consultations on configuration, answers to questions about the plugin, configuring the plugin according to your instructions
  • We will be glad to hear your: wishes, ideas, comments on the plugin operation


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