WHOIS
Current registration record for a domain: registrant, registrar, name servers, and EPP status codes.
Lookups and Monitors web tools
These are the web-based research tools at research.domaintools.com, a separate UI from Iris at iris.domaintools.com. They provide manual, point-and-click access to WHOIS, domain history, and monitoring without requiring API credentials.
WHOIS History
Full registration history going back 20+ years, with timestamped snapshots of every recorded change.
Domain Search
Search across WHOIS records by registrant name, email, organization, or other registration fields to find related domains.
Monitors
Track changes to a domain’s registration or infrastructure and receive alerts when they occur.
For programmatic access to the same data, see the Lookups and Monitors API documentation.