Developer Tool
SEO Tool
Favicon Checker
Find published favicon declarations, formats, sizes, and manifest references.
Icon discovery
Sizes + formats
Manifest check
How to Use
Enter a public URL or page details, run the check, and follow the plain-language result guidance.
Secure Inspection
Private networks, unsafe ports, oversized responses, excessive redirects, and abusive request rates are blocked.
Important
Scores explain observable signals and are not ranking, safety, or availability guarantees.
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