Is it possible to implement lazy load images in Webflow CMS and has anyone successfully implemented code for this?

Webflow does not natively support the lazy loading of CMS images, but you can manually implement it with some custom code. Here is how you can do it:

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1. Add Custom Attributes to Images

• Go to the CMS Collection where you want to apply lazy loading.
• Select the Image Element within your collection item.
• Add a New Attribute by clicking on “+ Add Attribute.”
• Set the Attribute Name to loading.
• Set the Attribute Value to lazy.

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2. Modify Image URLs for Compatibility

• Ensure your image URLs use the original size if necessary, as lazy loading works best with images correctly sized for various devices.
• If using external images, make sure they are stored in a CDN that supports lazy loading.

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3. Test Your Implementation

• Publish Your Site and check the performance in a modern browser by observing the image loading behavior.
• Use the Network Tab in the browser’s developer tools to see if images load as anticipated when scrolled into view.

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4. Use Third-Party Libraries (Optional)

• If default Webflow settings are not meeting your needs, consider JavaScript libraries like Lazysizes to augment functionality.
• Embed Custom Code from the library by going to Project Settings > Custom Code, and add it to the head or before body tag sections.

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Summary

You can implement lazy loading for CMS images in Webflow by adding custom attributes and possibly using third-party scripts. This solution enhances performance by loading images only when they are within the viewport.