just out of curiosity: if i'm located in spain and i setup an ec2 or digital ocean instance in germany and use it as a socks proxy over ssh, do you will detect me?

That's a hosting service IP block. Some sites block them already. Netflix for instance.

It won’t end up in our proxy detection database, but we track hosting provider ranges separately: https://www.iplocate.io/data/hosting-providers/

It is even easier to block hosting providers. They typically publish official lists. Here's the full list for both of those providers:

https://ip-ranges.amazonaws.com/ip-ranges.json

https://digitalocean.com/geo/google.csv

(And even if they don't publish them, you can just look up the ranges owned by any autonomous network with the appropriate registry.)