WhoisXML API offer a vast selection of domain/IP/DNS data feeds, APIs, research and monitoring web tools and cyber threat intelligence. Their coverage includes 15.6+ billion historical WHOIS records across 7298+ TLDs and ccTLDs, 4.2+ billion domains and subdomains, 12.9+ million IP netblocks, 99.5% of IPs in use, and 20.7+ billion historic DNS lookups gathered from over a decade of data aggregation.
"WhoisXML API's database consists of 23.8B+ WHOIS records and has indexed historical WHOIS records over a long period, making their solution one of the best in the market in my opinion."




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