who-dat

Self-hosted RDAP and WHOIS domain lookup API supporting the widest range of TLDs.

Servicefreeglobal

who-dat is a free, open-source, self-hostable API that combines RDAP and WHOIS domain lookups for maximum TLD coverage. It's aimed at developers who need reliable domain lookup functionality in their own tools without hitting the rate limits or availability issues of shared public WHOIS/RDAP services.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of who-dat - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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