DNSBuddy
Bulk WHOIS

Look up many domains, IPs, and ASNs at once

Paste or type a mixed list (domains, IPv4/IPv6, AS numbers). We classify each line, run RDAP/WHOIS in parallel, and group results, up to 256 entries per batch.

Bulk WHOIS is in beta

Batch size, field normalization, and export columns may change. If anything looks wrong, use the feedback card after you run a lookup.

Bulk WHOIS / RDAP
One entry per line; commas on the same line are treated as separate entries. URLs and optional ports are normalized before lookup.

Max 256 classified entries per request. Invalid lines appear under the Invalid tab with a short reason.