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SEO and auditingChecked through WebDiag API

Favicon and App Icons Checker

Enter a page URL to check declared site icons: SVG favicon, ICO fallback, apple-touch-icon, web app manifest, and file availability.

  • SVG favicon
  • Apple touch icon
  • Manifest
Online tool

Try the tool

Enter a URL: WebDiag will run a safe network check and show the result.

Network check through backend

For HTTP/SEO tools, the URL is sent to the WebDiag API, where SSRF protection, DNS/IP policy, and redirect limits are applied.

Reviewed: 2026-07-17
01

How to use it

  1. 1

    Paste a page URL.

  2. 2

    WebDiag finds link rel=icon/apple-touch-icon/manifest and checks fallback /favicon.ico.

  3. 3

    Review formats, sizes, statuses, and missing app icon signals.

02

What the tool can do

  • Checks declared icons and fallback /favicon.ico.
  • Detects SVG/PNG/ICO by content-type and URL.
  • Shows manifest URL without fake PWA validation.
03

Common use cases

  • Check favicon after a redesign or domain migration.
  • Find broken icon links and missing apple-touch-icon.
  • Prepare the site for clean display in tabs, bookmarks, and mobile home screen.
04

How it works inside

The check uses bounded safe fetch; /favicon.ico is added as a compatibility fallback.

This is an app icon coverage checker, not a favicon generator.

05

Questions and answers

Do I need an SVG favicon?

Preferably yes. SVG gives a crisp scalable icon, while /favicon.ico fallback remains useful for compatibility.

Does this check PWA?

No. This tool checks icon coverage and manifest presence. Full PWA audit is a separate performance/app tool.