Your ISP likely has multiple datacenters. And even if they don’t, their provider almost certainly does. Your DNS ultimately comes from a datacenter. Your machines clock is likely syncing with a NIST that is, once again, hosted in a datacenter.
A datacenter isn’t some magical thing that only a few companies have, if you’re dealing with a large anything that hosts its own or others data, they more than likely have a datacenter.
Not all those companies have their own data centers, but plenty of them would rent space in data centers. You can rent anything from individual servers owned by the data center (“dedicated servers”, like what you can get from Hetzner), to space in a shared rack, to an entire 42U rack dedicated to you, to an entire cage (or several cages).
(a cage is just a part of the data center that’s sectioned off in a locked metal mesh cage so only one customer can access it, while still allowing plenty of airflow to and from the servers)
Your ISP likely has multiple datacenters. And even if they don’t, their provider almost certainly does. Your DNS ultimately comes from a datacenter. Your machines clock is likely syncing with a NIST that is, once again, hosted in a datacenter.
A datacenter isn’t some magical thing that only a few companies have, if you’re dealing with a large anything that hosts its own or others data, they more than likely have a datacenter.
Not all those companies have their own data centers, but plenty of them would rent space in data centers. You can rent anything from individual servers owned by the data center (“dedicated servers”, like what you can get from Hetzner), to space in a shared rack, to an entire 42U rack dedicated to you, to an entire cage (or several cages).
(a cage is just a part of the data center that’s sectioned off in a locked metal mesh cage so only one customer can access it, while still allowing plenty of airflow to and from the servers)