rdap.cloud aggregates RDAP and WHOIS data from authoritative sources, then caches and normalizes responses so you can ship network intelligence without hammering upstreams.
No need to download, cache, and refresh IANA bootstrap files yourself. We keep them warm.
Domains, IPs, and ASNs via a single API call. No per-registry wiring or routing logic.
Use modern RDAP wherever possible, with WHOIS only when RDAP isn't available.
Consistent responses and lower latency without maintaining your own cache layer.
Query multiple targets in one request by comma-separating inputs.
Public API with fair limits. Great for quick scripts, automation, and internal tools.
Try RDAP lookups in your browser. Enter a domain, IP address, or ASN.
GET /api/v1/example.com
Fetch authoritative RDAP data for a domain name.
GET /api/v1/8.8.8.8
Fetch RDAP data for IP addresses or AS numbers.
GET /api/v1/services
See the aggregated RDAP and WHOIS services used for lookups.
rdap.cloud aggregates RDAP responses from authoritative servers and falls back to WHOIS only when needed. We normalize responses so they are consistent and predictable.
No. We proxy and cache responses so you do not have to maintain a full bootstrap client or repeatedly query upstream servers.
The target may be invalid or unsupported by RDAP. We include a clear error message in the response. If you see an issue, open a GitHub issue.
Bootstrap data is cached and refreshed periodically to stay current while minimizing upstream traffic.
Yes. We apply fair rate limits to protect upstreams and keep the service stable.
Yes. Comma‑separate targets in the URL: /api/v1/example.com,8.8.8.8,13335.