Enter an IP address to see the hostname it belongs to (reverse DNS).
How it works
The owner of an IP address can give it a name in DNS (a PTR record). This tool asks DNS for that name.
Verified means the hostname also points back to the same IP, so the two really belong together.
Websites on this IP lists websites people have looked up with Hostname to IP that point to this address. Each one is checked in DNS during your lookup, so the list is current. A website you look up there normally shows here straight away.
Websites on shared hosting or a CDN share their provider's IPs with many other sites. For those you'll see the provider's name (for example …ingress.render.com) as the reverse DNS name. That's how reverse DNS works everywhere.
Owner of this IP shows the network the address belongs to, from the public internet routing records (via Team Cymru's free lookup service).
Many addresses have no hostname at all, and mobile data addresses usually show your network provider's name.
Only public addresses can be looked up. We only query DNS; nothing connects to the address, and IP lookups aren't saved.
