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Favicon Hash Generator

Tool Description : A lightweight tool for generating a Shodan-compatible favicon hash from a website favicon or local favicon file.

Favicon hash generator

Quick Overview

What it does

Generates the hash of a favicon.ico which then lets you find websites that may impersonate your brand and phishing.

How to use it

Simply enter a favicon URL or upload a favicon file, then generate the hash.

Cost

Free.

Account required

No.

Cookies

None.

Ownership

Owned by KMSEC based in Cape Town, South Africa, and founded by Keith Makan.

Use in Reporting

Record the favicon hash as an indicator and document any potentially impersonating or phishing sites identified through the resulting pivot.

What does Favicon Hash Generator do?

Favicon hash generator generates a hash from a website's favicon.ico. The resulting hash can be used as a search indicator to find other websites or infrastructure using the same favicon, which can help identify potential brand impersonation, phishing sites or related infrastructure.

The lowdown: The tool can be particularly useful when investigating brand impersonation or phishing, as a matching favicon may reveal additional websites that warrant investigation.

Important note: A favicon match is not proof of attribution. Legitimate websites, shared hosting environments, and unrelated organisations can use the same favicon, so findings should be corroborated with other indicators.

How to Use:

1. Enter a favicon URL or upload a favicon file to generate the hash.

2. Use the generated hash as a pivot to search for other websites or infrastructure using the same favicon. Investigate any matches for signs of brand impersonation, phishing or other suspicious activity.

The tool connects with Shodan, VirusTotal and Censys. Our results with Censys below:

Cost

Data Processing

Account Required:

Cookies:

No account or login is required. The site states that it is built using Cloudflare Workers; no cookie requirement is identified on the tool itself and none were noted during our site session on 10 August 2026.

Use in Reporting

Relevant use cases include:

  • Brand impersonation investigations.

  • Phishing investigations.

  • Threat intelligence (pivot from a known suspicious website to potentially related infrastructure.)

  • Infrastructure mapping (identify websites or hosts that share a common favicon and investigate possible links between them.)

  • Lookalike website investigations.

  • Brand protection reporting.

Note: A favicon hash alone does not establish ownership or attribution.

Capabilities

Limitations

Generates a hash from a favicon.ico file.

A matching favicon doesn’t prove common ownership.

Identifies websites using the same favicon.

Legitimate websites may use the same favicon.

Supports brand impersonation investigations.

Changing a favicon will produce a different hash.

Can help uncover potential phishing websites.

A favicon hash alone provides limited investigative context.

Provides a useful pivot for finding related infrastructure.

Some websites may prevent their favicon being retrieved.

Can be used with either a favicon URL or a local favicon file.

Summary

Favicon Hash Generator is best used during the discovery and pivoting stage of an OSINT investigation, rather than being used as an attribution tool. A matching favicon can highlight websites for further investigation, but additional evidence is required before concluding that sites are connected or malicious.

Ownership

Owned and operated by KMSEC (Keith Makan Security Consultancy); a cybersecurity consultancy based in Cape Town, South Africa and founded by Keith Makan.

Ethical Considerations

  • Use only for legitimate OSINT and security research.

  • Do not assume a favicon match proves common ownership.

  • Verify findings with additional sources and indicators.

  • Avoid unnecessary interaction with suspicious websites.

  • Consider privacy when handling submitted favicon URLs or files.

Sources

https://favicon-hash.kmsec.uk/

https://www.linkedin.com/in/keith-m-766b823a/

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