WhoisXML API
About WhoisXML API
WhoisXML API provides enterprise-grade domain, IP, and DNS intelligence through a suite of 50+ API endpoints and data feeds. Products include WHOIS lookup and history, reverse WHOIS search, DNS record lookup, subdomain enumeration, IP geolocation, and domain reputation scoring. Maintains 21B+ historical WHOIS records and 15B+ DNS records. Serves 52,000+ customers including Fortune 500 enterprises, government agencies, and cybersecurity firms. Powers threat intelligence platforms, brand protection, and fraud prevention workflows.
Why Notable
21B+ WHOIS records; 50+ API endpoints; powers major TI platforms; 52,000+ customers
