Website IP Lookup

Most similar tools show a single address. Sites behind a load balancer have several, and visitors arrive on different ones, so this page lists every record, IPv4 and IPv6, with a TTL for each.

Each address is tested for real: a TCP knock on port 443, and if there is no answer, on port 80. A dead A record can stay in the zone long after a move, and some visitors wait patiently while the browser tries address after address until it reaches a live one. A plain list of addresses won't show you that.

What else gets checked

• addresses from private networks — 192.168.x is unreachable from the Internet;
• IPv6 support: providers give it to more and more visitors;
• the reverse name: a site doesn't need one, but mail sent from the same address does;
• the www version: whether it leads to the same network as the main domain.

We also have a full DNS records lookup that walks the entire zone, from NS down to the mail trio.