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Validation

Field guide

Favicon Audit

Audit your favicon, apple-touch-icon, and manifest in one pass.

What this tool does

You shipped a redesign and now half your users see a broken tab icon. PWA install fails silently. iOS home screen shows a screenshot of the page. This tool fetches the page through our hardened CORS proxy, parses the HTML for the right link tags, and probes each image to see what actually loads.

  • /favicon.ico
  • apple-touch-icon
  • /icon.png (32×32 or larger)
  • <link rel="manifest">
  • <meta name="theme-color">
  • <meta name="viewport">

When to use: Before launch, after any template overhaul, or when diagnosing why a tab icon or PWA install icon is missing.

Audit a URL

We fetch the page through our CORS proxy, then check the HTML for favicon link tags and probe each image to see what loads.

Try one:

Field guide

Operating notes for this tool

When to run it, how to read the output, and the common failures you can fix in 30 seconds.

Read the guide

FAQ

Common questions about favicon setup and what each check means.

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