There might not be precise measurement system which bills you by the byte, but many provides monitor (or periodically sample) bandwidth utilization, so and using too much data will catch someone's attention.
That’s wonky. If their normal servers include 20TB, why would they consider 250TB on their ‘unlimited’ servers too much. Makes you wonder who they think opts for unlimited servers. If 20TB was enough they clearly wouldn’t.
There might not be precise measurement system which bills you by the byte, but many provides monitor (or periodically sample) bandwidth utilization, so and using too much data will catch someone's attention.
Example from Hetzer, which claims to provide "unlimited" traffic. https://lowendtalk.com/discussion/180504/hetzner-traffic-use...
> We will routinely check your traffic use. If we continue to see such a high amount, we may choose to cancel your contract.