Favicon Checker

About Favicon checker

This tool reads a page's head, collects every declared icon (rel icon, apple-touch-icon, mask-icon and web manifest icons), adds the default /favicon.ico, then tests whether each one actually loads. It also compares your setup against the icon sizes modern browsers, iOS and installable web apps expect.

How to use it

1. Enter a domain or page URL in the Domain or URL field.
2. Select Check favicons. The address is sent to our server, which reads the page and probes the icons.
3. Read the headline: how many icons are reachable and how many recommendations remain.
4. Study the Declared icons table for rel, URL, sizes, type and HTTP status.
5. Work through Modern icon coverage and add whichever formats show a red cross.

A minimal icon setup

A page declaring an icon at /favicon.ico and an apple-touch-icon at /a.png with sizes 180x180.

Coverage passes for Classic favicon.ico, the Apple touch icon and having any icon declared. It fails for the 32x32 PNG, the scalable SVG, manifest icons, and the 192 and 512 pixel install icons.

When to use it

• Finding out why your icon does not appear in a browser tab or bookmark list.
• Making sure the iOS home-screen icon and Android install icons exist before publishing a web app.
• Detecting icon links that return 404 after a folder was renamed.
• Verifying that a web manifest is reachable and lists the sizes you intended.

Questions about Favicon checker

How many icons does it fetch?

At most eight distinct icons per run, using HEAD requests with four in flight at a time. Extra declared icons are still listed but marked as not checked.

Why is /favicon.ico probed even if the page does not declare it?

Browsers and crawlers request that path by default when no icon is declared, so the tool tests it too and merges duplicates by address.

Does it read the web app manifest?

Yes. If the page links a manifest, it downloads up to 200 KB of it, reads the icons array and treats those entries like declared icons.

What about icons embedded as data URIs?

They are listed but not fetched, since there is nothing to request. They are marked as inline data instead of reachable or broken.

Which page limits apply?

The page is downloaded up to one megabyte, only http and https are accepted, and each icon probe stops after five seconds.

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