Upload Thesis including published work to personal website

I think the question is simple, but answers may be quite different - I fear.

I have recently written my Thesis, which also includes some peer-reviewed published papers. As a general rule, is it ok to post the .pdf of my Thesis on my personal website?

If it depends on the journal and University where the papers have been sent to, what right should I be looking for on the journals website?

Best