Why am I getting notifications from blocked sites without a VPN?

Question

VPN

I live in a country where some of the websites that I occasionally use are blocked.
I use a VPN to access them. I installed applications, for example: mail.ru mail and when I receive a message, I receive a notification on my device. At what it happens without use of VPN. Why is this happening? And where can I read more information about this?

Answer 1

Notifications are not sent by the service itself, but through third-party providers of PUSH notifications, which may not be blocked. Google "push notifications provider".

Answer 2

Because the morons who block sites don't understand that it's impossible to block information, there will always be a way to exchange.