WHOIS Lookup
See who registered a domain, when it expires and which name servers it uses.
Related tools
- DNS LookupLook up DNS records by type, including reverse (PTR) lookups for IP addresses.
- Domain HealthOne check for DNS, email authentication, TLS, security headers and redirects, with a grade per area and a full report.
- Blacklist CheckerCheck whether an IP address or a domain's mail server is listed on DNS blocklists.
About this tool
See who registered a domain, when it expires and which name servers it uses.
XGM asks the registry over RDAP (RFC 9082/9083, structured JSON over HTTPS) using the IANA bootstrap list, and falls back to port 43 WHOIS for registries without RDAP. Status codes are explained in plain language.
How to use it
- Open the WHOIS Lookup tool.
- Enter the public domain, hostname or IP address you want to check.
- Run the check; XGM queries it from its server and lists the findings.
- Copy the output only after checking it looks correct.
- Use related XGM tools if you need a broader diagnostic view.
FAQ
Is the WHOIS Lookup free to use?
Yes. The WHOIS lookup is free and works without creating an account.
Does XGM store my input for WHOIS Lookup?
Browser-side utilities process input locally. Server checks send only the domain, host or IP you enter to the XGM API and do not store it.
Can I use WHOIS Lookup for production checks?
Yes, use it for quick validation and troubleshooting. For critical changes, confirm the result with your official provider, logs, monitoring or security stack.
What should I do after using the WHOIS lookup?
Compare the result with related signals, save useful evidence and follow the linked XGM guide or related tools if you need a wider check.
Read the full WHOIS Lookup guide