Look up any domain instantly with the Domain WHOIS API. Get registrar, creation date, expiration date, nameservers, and status — all in clean JSON. Uses RDAP protocol (RFC 7480). Supportscom,net,org,io and 10+ TLDs. Free tier: 5,000 requests/month. No API key. No registration. One GET request. Built on FastAPI. Runs 24/7. 9.2 rating on RapidAPI.
Built this after dealing with clunky WHOIS CLIs and paywalled domain lookup tools. RDAP is faster and cleaner than old WHOIS — but there weren't any free APIs for it.
Now at 9.2 stars on RapidAPI with thousands of monthly users. Adding bulk domain lookup next. Open to feedback!
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