I have used  hashvault.pro for multiple days. As I check "my stat" in the coinfoundry website, it says the hashrate is 0. Is that related to the pool name? I mean I want to know if that stat only works with xmr.coinfoundry? If that is yes, then how can I see how many coins I have earned?

From Iran.

Currently, I am using pool.monero.hashvault.pro:3333 and it is working. Does that matter?