hyperlink - How can I refer to a relative subdomain in HTML?

Question

Let's say I have a website which is accessed by multiple domains, e.g. domain1.com and domain2.com.

If I have a relative link, such as href="/wiki", then no matter what domain name I access the website by, that link will take me to the correct place.

Lets say instead I wanted to use wiki.domain1.com and wiki.domain2.com, is there some way I can make a link to this relative to the domain name?

If not, is there an elegant way to handle a link such as the wiki link above when multiple domains point to the same server?

Answer 1

No. You'll have to give the whole domain. To link from domain1.com to wiki.domain1.com, the link has to look like href="http://wiki.domain1.com".