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The 'loading' attribute on images and iframes allows authors to determine when the browser begins loading the resource.
Last updated on : 2026-02-09
Browser Versions
IE
Edge
Firefox
Chrome
Safari
Opera
Fully Supported
Partially
No Support
Lazy loading via attribute for images & iframes on IE is not supported on any IE versions.
Lazy loading via attribute for images & iframes on Edge is fully supported on 79-144, and not supported on 12-18 Edge versions.
Lazy loading via attribute for images & iframes on Firefox is fully supported on 122-150, partially supported on 75-121, and not supported on 2-74 Firefox versions.
Lazy loading via attribute for images & iframes on Chrome is fully supported on 77-147, and not supported on 4-76 Chrome versions.
Lazy loading via attribute for images & iframes on Safari is fully supported on 16.4-26.3, partially supported on 15.5-16.2, and not supported on 3.2-15.2 Safari versions.
Lazy loading via attribute for images & iframes on Opera is fully supported on 64-125, and not supported on 9.5-63 Opera versions.
Lazy loading via attribute for images & iframes on Safari on iOS is fully supported on 16.6-26.3, partially supported on 15.5-16, and not supported on 3.2-15.2 Safari on iOS versions.
Lazy loading via attribute for images & iframes on Android Browser is fully supported on 97-144, and not supported on 2.3-4 Android Browser versions.
Lazy loading via attribute for images & iframes on Opera Mobile is fully supported on 64-80, and not supported on 10-12 Opera Mobile versions.
Lazy loading via attribute for images & iframes on Chrome for Android is fully supported on all Chrome for Android versions.
Lazy loading via attribute for images & iframes on Firefox for Android is fully supported on 132-147 and partially supported on 95-130 Firefox for Android versions.
Lazy loading via attribute for images & iframes on Samsung Internet is fully supported on 12-29, and not supported on 4-11.1 Samsung Internet versions.
Data sourced from
Overall Browser Compatibility Score
Note:Lazy loading via attribute for images & iframes shows a browser compatibility score of 92. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.
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