Can websites use your computer to mine while you're visiting?

through server-side programs for example, is it possible for a website to mine bitcoin while you're surfing it?

Not exactly through server-side programs but rather through general code, pirate bay's been the worst offender of it, sometimes spiking users' CPU usage up to 100% just by looking at the site.

i think VPS can mine ,,other method did not work ..

there's a german picture board called "**0****m" (sorry but usually nobody is allowed to call it's name ;D) which used to have a mining tool in the background if you allowed it to do so. you could earn premium access just with mining something.

Some website are mining (cryptocurrency) while you navigate on these, so in fact, they're using your computer (GPU).
It mine without your knowledge and use a little part of ur GPU.
Here is a website which check if a domain is mining with a js:
https://notmining.es/

For sure, yes.

Some sites like uptobox, they use a script mining coins while you are visiting.

Of course they do. check for example most of the torrent trackers :D

Of course that's possible so the answer you're looking for here is yes

Absolutely but only if you are using a outdated webbrowser, use something like brave and u will be fine

Yes, some have embedded BC:Miner.js in them. Becareful where you go