Whois

Input

• Domain or IP address.

Options

• Lookup mode:
  • rdap (default): tries RDAP first and falls back to WHOIS if RDAP has no result.
  • whois: uses IANA WHOIS only, no RDAP fallback.

Output

• Registrar/registry object details.
• Status and lifecycle events.
• Nameservers.
• Source info (RDAP or WHOIS).

Tips

• Availability of fields depends on registry and TLD policies.
• For domains, nameserver details help diagnose delegation issues.
• Use RDAP for structured output; use WHOIS when you specifically need classic WHOIS text output.

Deeplink

netdebug://whois?target=example.com&mode=rdap

Tip: in the app, open the Export menu (the share icon) on this screen and choose Copy Deeplink to copy this link as a Universal Link with your current target and options already filled in.