404 page after custom DNS

I have a domain (quickk.blog) with Namecheap, I pointed the DNS to Netlify where my website is hosted, it works but the site randomly breaks and shows a 404 page and after a while, it actually goes back to how it should be. It has happened multiple times, I thought it was an issue with my browser cache but turns out it’s not.

I think the page itself says at the bottom : LiteSpeed Web Server - how is that Netlify?

I can load your website just fine, so this appears to be a local issue after all.