Reverse IP Lookup
Find the hostname associated with an IP.
A reverse IP lookup reads the PTR record that an address's owner publishes, returning the hostname assigned to that IP. Many addresses have no PTR record at all, which is normal and not an error.
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Public internet targets onlyResults
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Enter your details above and run the tool.
How Reverse IP Lookup works
What it does
Find the hostname associated with an IP.
What you get
Reverse DNS (PTR) hostnames associated with the address.
Live data sources
The target is sent to a network provider. Results include their source; timeouts and unavailable data are clearly marked.
What if a check cannot finish?
Confirm your input and try again. A timeout, blocked request, or unavailable provider is not proof that a domain is broken. Internet measurements and third-party services have limits.
Reverse IP Lookup — frequently asked questions
What is the difference between reverse IP and reverse DNS?
They are the same lookup. Both query the PTR record in the in-addr.arpa zone for IPv4 or ip6.arpa for IPv6.
Why does my IP address return no hostname?
Only the network operator holding the address block can publish a PTR record. Home connections and most cloud addresses have none by default; your hosting provider can add one.
Does reverse IP show every website on a server?
No. A PTR record returns one hostname for the address. Finding all the sites sharing an IP is a different technique and this tool does not do it.