Investigate a domain or IP address

Registration facts from the authoritative registry, plus what the domain is doing right now: DNS, email security, HTTPS and where it sends visitors.

Enter a full domain, URL, email or IP address for the detailed report — or just a name to compare it across the extensions below.

Extensions to compare

4 selected
Popular
Country codes
Business & tech
New endings
One name, every extension Check a name across .com, .co.uk, .uk, .net and dozens more at once — every registry queried in parallel.
Evidence, not guesswork Registration, DNS, SPF and DMARC, the live certificate and the redirect chain — gathered the moment you ask.
Lookalike domains Find the misspellings and confusable variants of your name that someone has already registered.
Watchlist and history Register free to keep every search, and track domain and certificate expiry dates in one place.