RDAP
LOOKUP.
Look up public registration data for a domain or IP address. RDAP is the structured successor to traditional WHOIS.
REGISTRY // RESULT
Public registration
VIEW JSON RESPONSE
Frequently asked questions
What is the difference between RDAP and WHOIS?
RDAP is the successor to WHOIS: the same registration data in a structured format from official sources.
Why is the registrant hidden?
Many registries redact personal data for privacy. Companies usually show; individuals usually do not.
Does RDAP tell me whether the site is up?
No. Status and expiry are registration data. To see whether the site answers, use Network Diagnostic or HTTP & HTTPS.
Can I look up an IP address?
Yes, IPv4 or IPv6. The result shows the block, the responsible organisation and the regional registry (ARIN, RIPE, LACNIC and others).
Is the IP organisation the one running the server?
Not always. The block may belong to a provider or cloud that assigns it to customers. Use the ASN and reverse DNS (PTR) as extra clues.