Free WHOIS Lookup & Domain Information Tool
Discover domain registration details online. Check domain registrar information, nameservers, DNS records, expiration dates, and owner information with our comprehensive WHOIS and RDAP lookup tool. Instant results, completely free.
Registrar Info
View domain registrar, registrant details, and registration status
Date Information
Check creation, update, and expiration dates for any domain
Nameservers
Identify authoritative nameservers and DNS configuration
DNS Records
View MX, SPF, DMARC, and other DNS records with IP geolocation
What Information Does WHOIS Lookup Provide?
Registration Details
- Domain registrar information
- Registrant contact details (if public)
- Creation and expiration dates
- Last updated timestamp
Technical Information
- Authoritative nameservers
- DNS records (MX, SPF, DMARC, TXT)
- IP address and geolocation
- WHOIS/RDAP data source
About WHOIS & RDAP
WHOIS is a protocol for querying domain registration databases. Our tool uses both traditional WHOIS and the modern RDAP (Registration Data Access Protocol) to provide accurate, up-to-date domain information. This is essential for domain research, investigating ownership, checking availability, and verifying DNS configuration.
More domain and infrastructure tools
DNS Lookup
Look up A, AAAA, MX, TXT, NS and other DNS records for any domain.
Subdomain Finder
Discover subdomains for any domain using Certificate Transparency logs.
Certificate Transparency Checker
Monitor CT logs for SSL certificate issuance and unauthorized certificates.
Blocklist Checker
Check if a domain is listed on spam, malware or phishing blocklists.
DNS Security Checker
Test DNSSEC configuration, CAA records and nameserver security.
This is one layer of the scan
FreeThis WHOIS Lookup scan covers one category. A full scan adds the checks it does not reach: exposed secrets, malicious scripts, and supply chain risks in your third-party code.