I want to join the following two sentences into one sentence, and I'm not sure what tense to use.
I joined a site. The site is focused on learning English.
Should I use present tense for describing the site, that is:
I joined a site, which is focused on learning English.
Or should I use past tense for describing the site, that is
I joined a site, which was focused on learning English.
(This is a question a friend asked me)