How to Use the WHOIS Lookup
- Enter a domain name or IP address.
- Click “Lookup” to query the WHOIS database.
- View the domain registrar information.
- Check the registration, renewal, and expiration dates.
- Identify the authoritative name servers.
Technical Logic
The tool connects to the appropriate WHOIS server on TCP port 43. It queries the root registry to find the authoritative server for the TLD. It then parses the plain-text response into structured fields for dates, registrar details, and name servers.
Key Features
- Support for all major TLDs and ccTLDs.
- IP address WHOIS (ARIN, RIPE, APNIC).
- Clean, structured data parsing.
- Raw WHOIS output availability.
Reference Table: Regional Internet Registries
| Registry | Region Covered |
|---|---|
| ARIN | North America |
| RIPE NCC | Europe, Middle East, Central Asia |
| APNIC | Asia-Pacific |
| LACNIC | Latin America, Caribbean |
| AFRINIC | Africa |
FAQ
Why is the WHOIS data hidden?
Many registrars apply domain privacy protection by default. GDPR regulations also require registries to redact personal contact details from public WHOIS records.
Can I find out who owns a domain?
If privacy is enabled, no. You must contact the owner via the proxy email address provided in the WHOIS record.