Static ISP sits between two things people usually compare it against. It costs more per address than datacentre space and less per gigabyte than rotating residential traffic, and it is the only one of the three that guarantees the exit will still be yours tomorrow.
Signals This Is The Right Product
- Your accounts get verification prompts that no browser change explains.
- Sessions need to survive days, not minutes.
- You can name every identity that needs an address; if you cannot, size it later.
Choosing Between The Three
Rotating residential wins on breadth. Thousands of exits, priced by the gigabyte, and ideal when the job is to see many pages once. Datacentre wins on cost and throughput, and is perfectly adequate against sites that do not scrutinise their traffic. Static ISP wins on exactly one axis, continuity, and that axis only matters after you are logged in. If the workload has no session to protect, this is the wrong product and the money is better spent on volume.
Sizing The Order
The count follows from identities, never from traffic. One address per account that must look settled, plus a small reserve per market so an incident does not leave you waiting on provisioning. Teams tend to over-order here by reasoning from bandwidth, which does not apply: a static address carries whatever you send through it, so a busy account and an idle one cost the same.
What To Measure Afterwards
Track re-verification rate per account before and after the switch — that is the number the product is supposed to move, and it usually falls within a week. Watch in-region latency as a secondary signal, since an exit routed outside its labelled country will show up there first. Session length matters more than raw speed: an address that is slightly slower but never forces a re-login is the better buy.
Priced Per Address
Billing follows identities rather than gigabytes, so cost is predictable regardless of how hard an account is used.
No Expiry
Capacity you have paid for stays on the balance; a quiet month does not cost you anything.
Country Selection
Choose the market each address should belong to, so accounts answer from where they were registered.