FOFA alternative

The FOFA alternative with perceptual favicon search

A powerful field:value search across hosts, DNS, WHOIS and certificates - with favicon similarity that goes beyond exact icon hash, English-first and EU-based.

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Profundis is a unified internet-intelligence search engine with a powerful field:value query language (wildcards, AND/OR/NOT) across hosts, DNS, WHOIS, TLS certificates and virtual hosts. Like FOFA, it lets you pivot across cyberspace assets, including by favicon.

Profundis’s favicon search uses perceptual similarity (MMH3 + visual similarity) rather than only an exact icon hash, so it surfaces visually similar favicons too. The interface is English-first, the platform is EU-based, and an official MCP server lets AI agents search natively.

What FOFA is known for

FOFA is widely known as a cyberspace search engine with a powerful query syntax, including favicon icon-hash search.

Why Profundis

Favicon perceptual-similarity search (MMH3 + visual similarity) that finds visually similar favicons, not just exact icon-hash matches - Profundis’s signature differentiator.

A unified internet-intelligence engine - exposed hosts and services, DNS (live + historical/passive), WHOIS (with reverse/registrant lookups), TLS certificates and virtual hosts - all searchable in one place with a field:value syntax (wildcards, AND/OR/NOT).

An official MCP (Model Context Protocol) server, so AI agents like Claude can call Profundis search as native tools - AI-agent-native distribution.

EU-based operation (Perspective Analytics SAS, France) for a data-residency / GDPR-friendly posture.

A free tier with no signup required for the hosts and DNS anonymous preview, plus transparent credit-based pricing from Free and Solo to Professional and Enterprise.

Profundis vs FOFA

CapabilityProfundisFOFA
Cyberspace asset / host search
Core feature
Core feature
Field:value query syntax (wildcards, AND/OR/NOT)
Across all datasets
Core feature
Favicon search
Perceptual similarity
Favicon icon-hash search
Unified DNS (live + historical/passive)
Built in
Supported
WHOIS + reverse/registrant lookups
Built in
Varies by plan
TLS certificate search
Built in
Supported
English-first interface
English-first
Varies
Official MCP server for AI agents
Native tools
-
Free tier with no-signup host/DNS preview
No signup to preview
Varies by plan
EU-based operator (GDPR posture)
France (EU)
Varies

“✓” marks a Profundis capability. “-” means the capability is not a documented public feature of FOFA at the time of writing - not a definitive statement about its roadmap. Based on publicly available information.

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Comparison based on publicly available information. All trademarks are the property of their respective owners. Profundis is not affiliated with FOFA.