Domain OSINT

ARIN is a nonprofit, member-based organization that administers IP addresses & ASNs in support of the operation and growth of the Internet.

Free online network tools, including traceroute, nslookup, dig, whois, ping, and our own Domain Dossier and Email Dossier. Works with IPv6.

An open source intelligence tool to crawl the graph of certificate Alternate Names

DNS History archives historical DNS records, letting investigators track IP changes, hosting migrations, and infrastructure pivots over time.

DNS Twister generates and monitors domain permutations for typosquatting detection, brand protection, and phishing infrastructure discovery.

DomainTools provides WHOIS lookup, IP history, domain ownership records, and reverse WHOIS for domain and infrastructure investigation.

DomainIQ provides WHOIS research, domain name investigation, brand protection tools, and cybercrime attribution resources.

DNS Tools, Domain lookups and universal Whois utility by easyDNS

Hunting New Registered Domains monitors freshly registered domain names for phishing, typosquatting, and emerging threat infrastructure.

SecurityTrails provides historical DNS records, WHOIS history, subdomain enumeration, and IP intelligence for domain and infrastructure investigation.

SURBL checks URLs and domains against spam, phishing, and malware blocklists compiled from multiple threat intelligence sources.

OSINT, Open Source Intelligence, information gathering, recon, Cybersecurity