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Favicon Checker

Free

Validate all favicon sizes and formats, generate missing sizes

faviconiconvalidatesizes
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How it works

1

Enter

Type a website URL to scan its HTML head for favicon declarations.

2

Analyze

Review detected favicon files, sizes, and formats alongside any missing or broken references.

3

Fix

Follow the recommendations to add missing sizes or correct broken paths in your markup.

Frequently asked questions

What favicon sizes should a website have?+
At minimum, include a 32x32 ICO file and a 180x180 Apple Touch Icon. Modern best practice also adds a 192x192 and 512x512 PNG for Android devices and a web app manifest linking to them.
Why does my favicon not show up in the browser tab?+
Common causes are an incorrect file path, a wrong MIME type, or browser caching. The checker verifies that each declared favicon URL resolves correctly and flags broken references.
Does this tool need to fetch the target website?+
The checker parses favicon link tags from the URL you provide. The analysis logic runs in your browser, and only the target URL is fetched to read its HTML head — no data is stored or logged.
What is the difference between favicon.ico and apple-touch-icon?+
Favicon.ico is the traditional icon shown in browser tabs and bookmarks. Apple Touch Icon is used when someone adds your site to their iOS home screen. Both serve different contexts and both should be present.
Can I check favicons for a localhost or staging site?+
You can enter any URL that your browser can reach, including localhost and internal staging domains. The check runs from your device, so private URLs work as long as they are accessible from your network.