ZenovayTools

Favicon Checker

Checks if a website has all required favicon sizes (16x16, 32x32, 180x180 Apple Touch, web manifest). Verifies each icon URL is reachable. Grade A-F.

How to Use Favicon Checker

  1. 1Enter your website URL.
  2. 2The tool fetches the HTML and finds all favicon link tags and a web manifest.
  3. 3Each favicon URL is checked for reachability via HEAD request.
  4. 4Review missing sizes and get recommendations for a complete favicon setup.
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Frequently Asked Questions

What favicon sizes do browsers require?▾
16x16 is used in browser tabs and bookmarks. 32x32 is used by Windows taskbar and high-DPI tabs. 48x48 is used by Windows desktop shortcuts. 180x180 (Apple Touch Icon) is used when iOS/macOS users add your site to the home screen. Web app manifest icons (192x192 and 512x512) are used for Android home screen and PWA splash screens.
What is a web app manifest?▾
A web app manifest (site.webmanifest or manifest.json) is a JSON file that tells browsers how to display your site when installed as a PWA (Progressive Web App). It includes icons, app name, theme color, and display mode. Without a manifest, users cannot install your site as a standalone app on mobile devices.
Why is the Apple Touch Icon important?▾
When iOS or macOS users tap 'Add to Home Screen', Safari uses the apple-touch-icon as the app icon on their device. Without one, iOS will create a screenshot of your page as the icon, which looks unprofessional. The recommended size is 180x180 pixels. Do not add drop shadows or rounded corners — iOS applies those automatically.
Do all favicons need to be separate image files?▾
You can serve a single SVG favicon that scales perfectly to any size using <link rel="icon" type="image/svg+xml" href="/favicon.svg">. SVG favicons work in Chrome 80+, Firefox 41+, and Safari 9+. For older browsers, keep a /favicon.ico fallback. A complete modern favicon setup uses: favicon.ico, favicon.svg, 16x16 PNG, 32x32 PNG, and 180x180 apple-touch-icon.png.
What is the Streisand effect with favicon paths?▾
Disclosing non-standard favicon paths (like /brand/assets/icons/favicon-v3.png) in your HTML isn't a security risk, but it can reveal internal versioning or branding structure. Always serve favicons from conventional paths (/favicon.ico, /apple-touch-icon.png) to avoid leaking internal information.