Whois Lookup
Look up domain and IP registration information using public RDAP APIs. View registrar, dates, nameservers, and network details.
Try Whois Lookup →What It Does
The Whois / RDAP Lookup queries public RDAP (Registration Data Access Protocol) endpoints to retrieve registration information for domains and IP addresses. For domains, it shows registrar, registration/expiration dates, nameservers, and status. For IPs, it shows the network name, CIDR block, range, country, and organization.How to Use It
- Navigate to Diagnostics → Whois Lookup from the top menu.
- Enter a domain name (e.g.,
example.com) or IP address (e.g.,8.8.8.8). - Click Lookup or press Enter.
- View registration details in the results grid.
- Use Copy All or Download .txt to export.
Domain vs IP Lookups
- Domain: Shows registrar, registration date, expiration date, nameservers, status codes, and whois server.
- IP Address: Shows network name, CIDR block, IP range, country, organization, abuse contact, and allocation dates.
The tool auto-detects whether your input is a domain or IP and queries the appropriate RDAP endpoint.
Use Cases
- Domain research: Check when a domain was registered or when it expires.
- IP investigation: Identify who owns an IP block during incident response.
- Abuse reporting: Find the correct abuse contact for a network.
- Vendor vetting: Check domain age and registrar for trust assessment.