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Lazy load for images

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This product is electronically distributed.

Lazy load for images
Lazy load for images

The default CS-Cart loads all images of the page at once that increases the page load time.

What does it threaten?

  1. Customers go to competitors — it’s easier for them to return to the search engine and choose another online store.
  2. A 0.1 second download delay reduces conversion by 7% (according to Akamai).
  3. It’s less likely that users will return to the site. According to Google, negative user experience reduces the chance of a repeat purchase by 60%.
  4. Download speed affects the ranking of the site in search engines. If the site takes a long time to load, the search engine robot may not have time to completely index it.

How to fix it?

The basic idea is simple — to delay the download of everything that the user does not need right now. We have released Lazy Load for Images add-on, which doesn’t load images immediately when a page is opened, but as it scrolls. This helps improve performance and use device resources economically.

The Lazy Load for Images add-on is especially effective on pages with more than 50 products. According to the results of our measurements on the test site (there was 54 products and 3 banners on the page), the page loading speed doubles.


  • You can apply the Lazy Load to: Product images, Banners, images in html and smarty blocks, images in product and category description, images in pages content and blog.
  • Or you can set the delay time to load all images. In this case the page loads without images and all images start to load once the delay time is over.
  • The Lazy load supports both vertical and horizontal scroll. The last one is for blocks with the scroller template.
  • By default images are loaded when they appear on the screen. If you want images to load earlier you can set threshold to load images. For example, setting threshold to 100 causes image to load 100 pixels before it appears on viewport.


Learn more in add-on documentation.

Need modifications or any assistance? Please, feel free to contact us via HelpDesk system.


6 months of the free upgrade period included.

Get add-on View discussion on CS-Cart forum

  • CS-Cart
  • Multi-Vendor
  • CS-Cart Ultimate
  • Multi-Vendor Ultimate
  • Multi-Vendor PLUS
Compatible versions
  • 4.13.2
  • 4.13.1
  • 4.12.2
  • 4.12.1
  • 4.11.5
  • 4.11.4
  • 4.11.3
  • 4.11.2
  • 4.11.1
  • 4.10.4.SP1
  • 4.10.4
  • 4.10.3
  • 4.10.2
  • 4.10.1
  • 4.9.3
  • 4.9.2
  • 4.9.1
  • English
  • Русский
Используем модуль в течении 5 месяцев и получили прирост на 21 пункт для мобильной версии темы Uni 1 и на 30 (!) для версии ПК. Отличный результат по загрузке изображений и расширенных баннеров, сайт визуально стал загружаться быстрее. Модуль имеет гибкую систему управления пост загрузки изображений категорий, в товарных карточках, баннеров и изображений в различных блоках. Что ещё данный модуль поддерживает cs-cart c версии 4.6.3. Рекомендуем)
У вас скрины до и после, одиннаковые. Ваш модуль лучше чем cs-coding, он грузит фотки при видимости или всё сразу после загрузки страницы, видимые и не видимые? Совместимо с АБ шаблонами, дайте плз инфу на почту, я закажу.

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