p0f

Multi-protocol passive fingerprinting library: TCP/HTTP (p0f-style) + TLS (JA4-style) analysis in Rust

p0f v3 with impersonation spoofing, written in Python - Accurately guess the OS of a packet with passive fingerprinting.

Network Tools

Purely passive OS and application fingerprinting system

modernized and C99 compliant port of p0f (Passive OS fingerprinting)

Consent-only OpenVPN passive telemetry lab with localized dashboard and one-script VPS deployment

Clean proxies with UDP and p0f for scraping, SEO, ads, anti-detect browsers, automation and e-commerce.

Floodspark Counterespionage Firewall (CEF) helps you record and block or honeypot reconnaissance or otherwise illegitimate traffic. CEF is like a web application firewall (WAF) but protects against reconnaissance.

TCP Fingerprinting of email senders.

Small tool to test your network connectivity

TCP SYN packet collector for Node.js

p0f with Python.

Detecting Network Address Translation & Proxy Use

🔍 PASSIVE OS FINGERPRINTING. Python p0f implementation. Detect hosts. Reveal OS without touching. 🕵️

Quarterly empirical data on TCP fingerprint distribution in the residential proxy market

Passive OS fingerprinting support for rspamd

OS Fringerprinting