Runs on our server
WHOIS lookup
Registrar, created and expiry dates.
The check runs on our server. We do not store the domain.
What this checks
This tool asks the domain's registry who the domain is registered with, and when it was created and when it expires. When a plain WHOIS query is refused or rate-limited, it falls back to RDAP, the newer HTTPS-based replacement — the "Source" row says which one answered.
What to look for
An expiry date under 30 days away is the one that matters: a domain that lapses stops resolving, and mail and web traffic go with it. Registrars usually offer auto-renewal — it's worth turning on well before that date, not after.