Domain name or IP address

Looking up 2a04:3540:1000:310:54b9:a2ff:fe8e:29a5

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