Global network testing platform for running ping, traceroute, DNS, and HTTP checks from many probes.
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IP intelligence tool for checking scan traffic, noisy hosts, and suspicious internet activity.
OSINT.sh SSL check for testing whether a host appears vulnerable to Heartbleed.
IANA database listing top-level domains, registry operators, and root zone delegation data.
Research paper and dataset about internet-wide scanning and host discovery from 2012.
NERD IP reputation search for checking network entities, abuse data, and security signals.
Unlimited Reverse DNS, Subdomain and Reverse CNAME lookups, also provides JSON APIs.
Free, no-login IP reputation lookup that aggregates up to 8 risk sources, flags residential vs datacenter, and profiles /24 C-block neighbors. Also of
Open source URL shortener with custom domains, analytics, and self-hosting support.
Open source URL shortener with custom domains, analytics, and self-hosting support.
Search engine for exposed services, misconfigurations, leaked data, and internet-facing systems.
Threat intelligence search platform for malware indicators, IPs, domains, URLs, and hashes.
A user-friendly Python toolkit for open source intelligence, providing key features such as image geolocation, social media profiling, email breach checks, domain lookup, metadata extraction, Google dorking, Wayback Machine queries, IP geolocation with blacklist checks, reverse image search, among others.
Security lookup platform for scanning files, hashes, URLs, IPs, and domains against threat data.
Metadata extraction tool for finding hidden information in public documents from target domains.
Browser extension for searching IPs, domains, hashes, URLs, and indicators across threat intelligence services.
Internet asset search engine for domains, IPs, ports, certificates, and exposed services.
OSINT.sh online Nmap-style scanner for checking visible ports and network services.
OSINT search engine for exposed assets, IPs, domains, certificates, and network data.
Curated OSINT toolkit with links for people search, social media, maps, domains, and research.
OSINT.sh offers browser-based lookup tools for domains, IPs, metadata, images, and public data.
OSINT.sh SSL check for testing whether a host appears vulnerable to POODLE.
Web vulnerability search engine for finding reported security issues across websites.
OSINT.sh tool for finding websites connected by shared Google AdSense identifiers.