IP2WHOIS Information Lookup
WHOIS domain name lookup
- Authentication
- API Key
- HTTPS
- Yes
- CORS
- Unknown
- Category
- Development
- Data source
- public-apis + marcelscruz
- Documentation / URL
- https://www.ip2whois.com/
Overview
IP2WHOIS (IP2Location) provides WHOIS records for domains — registrar, dates, and name servers. Auth is an API key (an invalid key returns 401, verified).
Quick Start
Lookup (replace YOUR_KEY):
curl "https://api.ip2whois.com/v2?key=YOUR_KEY&domain=google.com"{
"domain": "google.com",
"domain_id": "2138514_DOMAIN_COM-VRSN",
"status": "clientdeleteprohibited",
"create_date": "1997-09-15",
"registrar": { "name": "MarkMonitor Inc." },
"registrant": { "name": "Domain Administrator" },
"nameservers": ["ns1.google.com", "ns2.google.com"]
}Authentication
- Register at ip2whois.com → free API key.
- Send it as the
keyquery parameter (invalid → 401, verified).
Rate Limits & Notes
- Free tier: 500 lookups/month (check the docs); paid plans scale.
- Returns registrar, dates, status, contacts, and name servers.
FAQ
Is IP2WHOIS free? Free tier: 500 lookups/month; more is paid.
How do I get a key? ip2whois.com → register.
What’s the auth style?
key query parameter (verified).
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