What is WHOIS?

WHOIS (pronounced "who is") is a query and response protocol used for querying databases that store the registered users or assignees of an internet resource, such as a domain name or an IP address block.

What’s in a WHOIS record?

• Registrar: The company where the domain was purchased (e.g., Cloudflare, Namecheap).
• Expiry Date: When the domain subscription ends.
• Nameservers: Which servers are directing the traffic for the domain.
• Contact Info: Often redacted today due to GDPR/Privacy laws, but historically included the owner's name and email.