WHOIS / RDAP Lookup
Server requestLook up registration data for a domain, IP, or ASN via RDAP, the structured JSON successor to WHOIS. Input type is detected automatically.
Powered by RDAP
Results come from RDAP, the structured JSON protocol that replaces WHOIS. Some fields may be redacted by the registry’s privacy policy.
How to read the results
For domains you’ll see status codes, registrar, key dates (registration, updated, expiration), nameservers and DNSSEC status. For IPs you’ll see the network range, CIDR, name, type and country. The full raw RDAP response is available below the summary.
Examples
example.com— domain registration data.8.8.8.8— the network block owner.AS15169— an autonomous system.
Data source: RDAP registries (via bootstrap). We display only published registry data and do not store or re-process contact details. Learn about our data sources →
Frequently asked questions
What is the difference between WHOIS and RDAP?
WHOIS is an older text protocol with inconsistent formats. RDAP (Registration Data Access Protocol) is its modern successor, returning structured JSON with standardized fields and clear status codes.
Why is contact information missing?
Registries redact personal contact data under privacy policies such as GDPR. We show only what the registry publishes and never guess hidden values.
What can I look up?
Domains, IP addresses, and Autonomous System Numbers (ASNs). The input type is detected automatically.