Is there some online service that gives all the hosts that are served by a given IP address (or eventually the sugared version hostname -> ip -> other names)?

  • Are you running a dedicated server with your own VMs, or do you have one VM provided by a hosting company? Or are you talking about vhosts in regard of apache being multi-homed?
    – txwikinger
    Jul 10 '10 at 0:02
  • I'm talking about having a website hosted somewhere, and I want to check if there are other websites that are answered at the same IP address. I don't have any access to the webserver configuration. Jul 10 '10 at 15:45

If you do a reverse DNS lookup you can find how many Domain names are on a given IP which can give you an idea of how many virtual hosts there are.


  • it gives me only the official reverse lookup, but I don't get any info from the actual virtual hosts that webserver answers. Jul 10 '10 at 15:45
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    I think this is as close as you can get. Without physical access to the server, or that information being exposed wilfully by the sysadmin, there's no way to know what hosts the webserver will respond to.
    – Marc
    Jul 10 '10 at 22:54

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