Non-standard image format Browser Compatibility Check

Description

This page contains an image with a non-standard format which will not display on all browsers.

Help

The commonly supported image formats are image/avif, image/gif, image/jpeg, image/png, image/svg+xml and image/webp.

Applicable standards

• Android
• Chrome
• Edge
• Internet Explorer
• Firefox
• Opera
• Safari
• iPhone/iPad

Change history

• 2026.62 Oct 2026 No longer fires for ICO images, which all browsers support, or for TIFF, HEIC/HEIF and JPEG XL images, which have their own rules. Now fires for Chrome on Android.
• 5.10 Oct 2015 Now fires for Edge.
• 5.2 May 2013 Now fires for TIFFs (unsupported on Firefox) and no longer fires for Windows BMP files (widely supported).
• 4.2 Dec 2010 Now fires for iOS.
• 1.0 Feb 2007 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: BugUncommonImgFormat