Several domain names same site

page for each domain

[teksun]

I have say 5 domain name that are all related. Should I build an entry page for each domain name besides an index.html

[httpwebwitch]

Are they 5 copies of the same website?
that is bad.

Choose one and go with it. Discard the others, or keep them and redirect all their traffic to the primary domain.

[kamakaze]

The only way I would do that is if you never plan to get any traffic from the search engines :-P

Bad..bad..bad! S P A M is what the search engines will see therefore you will be banned.

[Buster42]

httpwebwitch, when you say "redirect" do you mean "forward" the domain name?

[httpwebwitch]

I mean you put a blanket rule on the other domain that sends a 301 Moved Permanently header with a redirection to the new one.

You can do that with Apache mod_rewrite, or IIS ISAPI rewrite.

This is necessary if you combine two websites into one, have duplicate indexing issues, or buy a previously-owned domain to fatten up an existing site. Any backlinks or indexings of the secondary domain should be moved permanently (301) to the primary one, so the SE removes its index of the former.