WHOIS Domain Lookup
Look up registration details, contacts, and nameservers for any domain name
The domain ryukadai.jp is registered. You can still try to buy it here.
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Raw WHOIS Data
Raw WHOIS responses from registry and registrar servers.
Get this WHOIS record from the API
Fetch the parsed record for ryukadai.jp as JSON. 500 free lookups a month, no credit card. Paid plans from $29.00/month.
curl https://api.who.is/v1/whois/ryukadai.jp \
-H "Authorization: Bearer wis_live_..."About WHOIS
WHOIS is a query and response protocol used for querying databases that store registered users of Internet resources, including domain names and IP addresses.
The protocol provides essential information about domain ownership, administrative contacts, and technical details that are invaluable for domain management and security purposes.