Articles on my website aren't updated in other countries

I have this issue with one website of mine whereby I would post new articles or even update old ones but even after waiting hours, when I check the website from other countries (VPN), incognito, the website hasn't updated and the new articles haven't appeared yet.
I've cleared cache both on the website and on Cloudflare but nothing will change until a day later.
This website is on EasyWp hosting.

How do I fix this?