2) this has nothing to do with Supreme, GD or WordPress, this is how linking works in HTML code.
Relative URLs, that doesn’t explicitly specify the protocol (e.g., ” http:// ” or ” https:// “) and/or domain ( http://www.example.com ), force the visitor’s web browser (or the search engine bots) to assume they refer to the same site on which the URL appears.
So if you use a link like this:
href="/relative/"
on mysite.com the link will be mysite.com/relative/
on mysite.com/about/ the link will be mysite.com/about/relative/
The explanation you offered about analytics is based on wrong assumptions.
The referrer is what determines if you are opening a new sessions or continuing an existing session and all links in a browser a rendered as
http://domain/path/
no matter if in the db are entered as relative or absolute.
Thanks