Is a website islam.com part of SO websites, or is it only copy-paste web? Its design is totally the same as SO has.
It is not part of the network. If it would be, this would have been clearly indicated on the site itself, particularly in the footer.
We have our own Islam beta site: https://islam.stackexchange.com/
It is an excact copy of the design but no it's not part of the Stack Exchange network. You can see all sites here.