Hi everyone. Can someone please tell me what this is called. Domain1 is the real domain. Domain2 and Domain3 are domains that point to Domain 1 but in a way that keeps the URL structures. E.g. http://www.domain2.com/cat/page1.asp and http://www.domain3.com/cat/page1.asp both show the EXACT content as http://www.domain1.com/cat/page1.asp.