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Article3 min read

Google Clarifies Favicon Formats: Why a Store Icon Might Disappear from Search

Documentation updates list supported formats without changing the rules. I explain what to check if the icon appears in the browser but is missing from search results.

A clean storefront sign in the form of a simple geometric shape on the building facade
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A small icon next to search results helps identify a store among similar names. Its disappearance after a site update is noticeable to the owner, though it does not inherently mean a loss of rankings.

On August 28, 2026, Google updated its favicon documentation to explicitly list supported file formats. The company separately noted that support rules remain unchanged. This is a clarification of the help page, not a new ranking factor.

Browser icons and search result icons undergo different checks

A browser may display an image that the search engine has not yet received or processed. Start with the homepage: which file is specified in its markup, is it accessible without authorization, and does it return a correct response?

The published Google list includes ICO, PNG, and JPEG. The presence of SVG or other formats in your site's icon set does not prove that any specific one is suitable for the search surface. There is no need to delete the entire set; it is important to correctly specify the appropriate file.

Check crawl restrictions. The search engine bot must be able to access both the homepage and the image itself. An error in access rules after a migration might affect only the file and go unnoticed during a standard browser view.

Small icons require simple designs.

A detailed logo with a long name is hard to read at icon size. A favicon should feature a recognizable, compact element tied to the site's branding. This is about legibility, not a place for promotional text.

Google requires a square shape and recommends a size larger than 48 by 48 pixels for optimal display across various surfaces. However, increasing the resolution does not fix overly fine details within the image.

Check the icon at a reduced size on both light and dark backgrounds. Thin outlines may disappear, and complex compositions can turn into indistinct blobs. Verification takes less time than the subsequent search for the causes of poor recognizability.

Allow search engines time to process the change

After fixing the issue, avoid changing the file URL daily or uploading new versions. A stable URL simplifies maintenance, while re-crawling and processing can take time. Note that meeting requirements does not guarantee the favicon will appear in search results.

For acceptance, it is sufficient to verify correct markup, image accessibility, and readability. Then monitor the result without constant rework. The favicon is a small but useful part of a clean search representation for a store; it complements a clear title and a substantive page.

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