IP2WHOIS Information Lookup
FreemiumUntestedOur check runs without a key, so we couldn't test this one. It doesn't mean it's down.
Domain WHOIS records—registrant, dates, nameservers—by domain name, returned as JSON or XML.
Example request
curl -s 'https://api.ip2whois.com/v2?key=$API_KEY&domain=example.com'
Free tier, in plain English
Free plan covers up to 500 domain WHOIS lookups a month with a registered API key; paid tiers exist for higher volume.
Alternatives in WHOIS & DNS
DigMyNameChecks domain availability and compares registrar prices across 50+ TLDs, no key required.FreeDomain IntelligenceWHOIS/RDAP, DNS, SSL certificate, subdomain and SPF/DMARC/DKIM data for a domain in one call.FreemiumDomScanDomain, DNS, WHOIS/RDAP, TLS, typosquatting and brand-monitoring lookups across 1,100+ TLDs.FreemiumHost.ioDNS records, backlinks, IP/ASN and related-domain data across 600M+ registered domains.FreemiumNetworkCalcREST utilities for IP subnet math, DNS/WHOIS/SPF lookups, TLS certificate checks, and encoding conversions.Freemium