Domain name or IP address

Looking up 2a01:4f9:2a:2c5e:ffff:ffff:ffff:ffff

Asking the registry. This usually takes a few seconds.

My favorites

Press the heart on a result to keep it here.

Add Ajax Whois to your browser's search engines and look up names straight from the address bar.

/ jumps to the search box and Ctrl+S saves a result to My favorites. All shortcuts