Your Wifi may blocked railway network, You can try change your DNS to 1.1.1.1

I tried changing it, but the problem persists for some reason. Anyway, thanks for the help, friend.

What do you see when you access it with your WiFi network?

I have an infinitely black screen that tries to load the site

Can you try clear the DNS cache and open the deployment URL again?

It works through one provider, but doesn't work through other provider. Is this a DNS problem?

I don't even know, I have a dynamic Ip and the dns is assigned by itself

I have the same problem in Ukraine.

Assuming you're accessing the site via url *.up.railway.app?

Try one of these

Temporarily lower the router MTU to 1400. If the black screen resolves, it was never censorship at all.

Or Attach a custom domain

If a custom domain doesn't fix it, put a CDN in front of that domain. This moves the client-facing IP off Railway's new prefix entirely.

Can also try to access other sites you can find in this thread https://station.railway.com/community/what-are-you-building-on-railway-c3fff450 search for up.railway.app domains

I'll tell you what the reason was. I wrote to my provider and they said that the problem was with the higher-level provider, which caused a failure due to which my site wouldn't load. As they explained, there were problems and a failure on the server of the higher-level provider.