Favicon checker

What the favicon checker does

This tool checks whether a website provides a favicon and whether the page links to it correctly in the HTML. It helps confirm that the small icon shown in browser tabs, bookmarks, and some search results is present and reachable.

A favicon is a small image associated with a site. Browsers request it automatically from the site root in many cases, but explicit link elements in the document head are the reliable way to declare it. Different devices and platforms may use different sizes and formats, including ICO, PNG, and SVG.

Why favicons matter

The favicon is a small but visible part of brand recognition. It appears in browser tabs, bookmark lists, history, and sometimes alongside search results or in mobile home screen shortcuts. A missing or broken favicon leaves a generic placeholder, which looks unfinished and can make a site harder to identify among many open tabs.

A correct favicon setup also avoids unnecessary 404 errors. When a browser requests a default favicon path and the file is absent, the server logs an error for every visit. Declaring the icon explicitly and ensuring the file exists keeps logs cleaner and avoids wasted requests.

How to interpret the result

If a favicon is found and linked, verify that the referenced file actually loads without errors. A link tag pointing to a missing file is worse than no link at all, because it produces repeated failed requests. If no favicon is detected, the browser may still fall back to /favicon.ico, but relying on that fallback is fragile.

Check the format and size. Modern setups often include multiple declarations: an ICO for legacy support, PNG icons for various sizes, an SVG for scalable display, and an Apple touch icon for iOS home screens. Consistency across these files matters, since an outdated or mismatched icon can appear on some platforms and not others.

Common favicon issues

• Broken link. The declared file path returns a 404.
• Wrong MIME type. Some servers serve icons with an incorrect content type.
• Missing sizes. A single tiny icon may look blurry on high-density displays.
• Cache staleness. Browsers cache favicons aggressively, so updates may not appear immediately.
• Inconsistent branding. Different platforms showing different icons undermines recognition.

Practical workflow

Confirm the main favicon loads, then test the site in a fresh browser profile to avoid cached icons. Check mobile home screen behavior if that matters for your audience. After updating the icon, keep the old file path working for a transition period or accept that some visitors will see the previous icon until their cache expires.

Limitations

The checker reports what the HTML declares and whether the file is reachable. It does not verify how every browser or platform will render the icon, and some platforms use their own discovery rules.