StatusDetector

WHOIS / RDAP Lookup

Find out when a domain was registered, when it expires, who the registrar is, and whether it's in any registry hold or redemption state. Uses RDAP, the modern WHOIS replacement.

Try:google.comgithub.comcloudflare.comopenai.comanthropic.comvercel.comwikipedia.org
anthropic.com
ExpiresOct 2, 2033(2701d remaining)
RegisteredOct 2, 2001
RegistrarMarkMonitor Inc.
Status flagsclient delete prohibited, client transfer prohibited, client update prohibited

Want to see if the site is actually reachable?

The Website Down Checker probes anthropic.com over HTTP and HTTPS, checks the SSL certificate, runs a full DNS lookup, and combines all of it with what you see here.

Open in Website Down Checker

RDAP is the registry-published replacement for WHOIS — same data, structured JSON, available without authentication for most TLDs. Lookups go through rdap.org, which redirects to the appropriate registry server (Verisign for .com/.net, PIR for .org, etc.). Cached up to 24 hours.