LZR

Detects and fingerprints unexpected services on unexpected ports, working alongside ZMap scans.

Desktopfree

LZR is an open-source scanning tool that identifies and fingerprints services running on unexpected ports. It works with ZMap to intercept connections, recognising up to 18 protocols at once with two extra packets and fingerprinting more than 35, and can complete full application-layer handshakes with ZGrab. It is aimed at researchers doing internet-wide measurement and security scanning.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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