RDAP and WHOIS Lookup

RDAP/WHOIS lookup provides registration context for domains, IP ranges, and ASN entities. It helps identify who controls naming and addressing resources involved in incidents.

What this tool checks

• Registration data retrieval using modern RDAP-first strategy.
• Fallback context where WHOIS data is still operationally relevant.
• Structured outputs for ownership, abuse-contact, and object metadata.

How to read the output

• Result Summary shows whether registry data could be resolved.
• Overview highlights owner/contact clues and key lifecycle fields.
• Technical Details supports deeper compliance and escalation workflows.
• Raw Output preserves exact registry payload for evidence.

Common failure patterns

1. Stale contact records delay abuse or escalation communication.
2. Entity mismatch between expected and observed registration object.
3. Parsing differences between registries hide key fields.
4. Privacy redaction limits immediate attribution confidence.

Remediation workflow

1. Validate object type (domain, IP, ASN) before interpreting fields.
2. Correlate registry output with live DNS and routing behavior.
3. Use provided entity references for structured escalation paths.
4. Re-check after transfer events or registrar updates.

Next steps

• IP Information Lookup
• DNS Lookup (NsLookup)
• Back to Network category

FAQ

Why prefer RDAP over WHOIS?

RDAP offers structured, machine-readable output and clearer object relationships.

Can registry data be incomplete?

Yes. Privacy controls and registry variance can limit visible fields.

Does registrant data prove active operational control?

Not always. Operational control can differ from registration ownership details.

Should I escalate based only on WHOIS text?

Use registry data with live network and DNS evidence for stronger escalation quality.

When should I rerun RDAP lookup?

After transfers, registrar changes, or ownership disputes during incidents.