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Favicon Hash Calculator

Calculate MurmurHash3 hash of favicon to find related websites via Shodan, Censys and FOFA

Free Tool OSINT MurmurHash3

Calculate Hash

Enter website URL or direct link to favicon.ico

How does it work?

1

Fetch

Favicon is fetched and converted to Base64

2

Hash

MurmurHash3 hash is calculated

3

Search

Find related sites in Shodan/Censys

Why is this useful?

Favicon hash is a powerful OSINT tool for discovering:

Related infrastructure
Hidden subdomains
Phishing sites
Clones and mirrors

Note

Shodan search requires a free account. Censys also offers a free tier.

Algorithm

MurmurHash3 (32-bit, seed: 0)

Applied to Base64 representation of favicon

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