Invalid Hostname

If your server shows "Invalid hostname" in the server-list when attempting to query

If your server shows "Invalid Hostname" when querying on the serverlist, this usually means you are accessing a domain (or IP) pointed to our network, but not actually registered within our database.

Example of the error


  • You have a SRV record pointed directly to your CNAME

  • You are connecting directly to your CNAME (similar to SRV)

  • You have not registered your domain with TCPShield

  • You have misspelled your domain name when entering it in the dashboard


  • If you have an SRV record, ensure it is going to a target that is registered on TCPShield (for example a subdomain that is already pointing to the protected CNAME)

  • Ensure the domain you're attempting to reach is registered within your dashboard, with a reachable backend IP

  • If it is registered, ensure it is spelled properly