Censys IPv4 search for finding exposed hosts, ports, services, and internet infrastructure.
Directory
Search results
Published directory entries matching your search.
Internet asset search engine for discovering exposed services, hosts, domains, and technologies.
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.
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.
OSINT tool for collecting domain, IP, ASN, and infrastructure intelligence from multiple sources.
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 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.
OSINT.sh tool for finding websites connected by shared Google Analytics tracking IDs.
OSINT.sh tool for finding domains that share the same mail exchanger records.
Internet asset intelligence platform for domains, IPs, certificates, and exposed infrastructure.
Aware Online tool for searching websites, domains, indexed pages, and related OSINT clues.
Cyberspace search engine for finding internet-connected assets, devices, and exposed services.