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RDAP Lookup
Query live registration data for any domain, IP address, or AS number using RDAP — the JSON-based protocol that has replaced WHOIS. Results come straight from the authoritative registry via rdap.org, entirely in your browser.
Why RDAP instead of WHOIS?
RDAP (Registration Data Access Protocol) returns structured JSON with consistent fields, internationalization, and standardized status codes, where WHOIS returned inconsistent free text. RDAP queries overtook WHOIS in 2025 and WHOIS is being retired, so RDAP is now the reliable way to pull registrar, dates, status, nameservers, and abuse contacts for a domain, or allocation and org data for an IP or ASN.
Frequently asked questions
What is RDAP and how is it different from WHOIS?
RDAP is the modern, JSON-based protocol for registration data. Unlike WHOIS, which returned inconsistent free text per registry, RDAP returns structured, standardized fields with internationalization and clear status codes. RDAP queries overtook WHOIS in 2025 and WHOIS is being phased out.
Can I look up an IP address or AS number, not just a domain?
Yes. Enter a domain (example.com), an IPv4/IPv6 address, or an AS number (e.g. AS13335 or 13335). The tool routes each to the correct RDAP service and shows the relevant fields.
Does my query get logged or sent to your server?
The lookup runs from your browser directly against rdap.org, which redirects to the authoritative registry. Max Intel does not proxy or store your queries.
Why do some domains return no data?
Roughly 60% of country-code TLDs publish RDAP so far, and some registries restrict fields for privacy. If a registry has no RDAP service, no record is returned.