Domain WHOIS lookup API returning registrar information, registration and expiry dates, name servers, and contact details for any domain name.
https://api.ip2whois.com/v2
Auth type
API Key Header
Auth header
GET /v2?key=YOUR_KEY&domain=google.com
Rate limit
500 requests/month (free tier)
Pricing
Free tier available
Free quota
500 queries/month on free tier
Documentation
https://www.ip2location.com/web-service/ip2whois
Endpoint status
Server online — HTTP 403 — server is online but path returned an error (may require auth)1.76s
(checked Mar 29, 2026)
Builder score
C
51%
builder-friendly
API key as a query parameter (key)
GET /v2?key=YOUR_KEY&domain=google.com
Free tier with 500 monthly queries; paid plans for higher volume.
| Method | Path | Description |
|---|---|---|
| GET | / |
Look up WHOIS information for a domain |
curl 'https://api.ip2whois.com/v2?key=YOUR_KEY&domain=google.com'
{"domain":"google.com","registrar":"MarkMonitor Inc.","create_date":"1997-09-15T04:00:00Z","expire_date":"2028-09-14T04:00:00Z","nameservers":["ns1.google.com"]}
Data sourced from API Map. Always verify pricing and rate limits against the official IP2Location documentation.