Dedicated vs Shared Proxies: What You Share, and When It Matters

What is actually shared

Sharing applies to static proxies, typically datacenter. The provider sells the same address to a handful of customers at once. Your traffic, theirs and anyone else's all leave from one IP, so any site you both visit sees a single, busier, less consistent visitor — and any ban one of you earns applies to all of you.

When shared is fine

• Targets that do not care — public APIs, documentation, internal tools, your own sites.
• Uptime and QA checks where an occasional block is harmless.
• One-off bulk fetches where the per-IP price matters more than the success rate.
• Learning and testing before you know what a target tolerates.

When you need dedicated

• Any logged-in account. Two customers' accounts on one shared IP are linked in the platform's eyes. See multi-accounting.
• Ad accounts and payments, where a flagged IP triggers reviews.
• Allowlisting. An allowlist that admits a shared IP admits everyone on it.
• Reputation-sensitive targets that check fraud scores.

Semi-dedicated and ‘private’ proxies

‘Semi-dedicated’ usually means an IP shared by two or three customers instead of many. ‘Private proxy’ is marketing language that normally means dedicated, but check the terms — some providers use it for any authenticated proxy. The only question that matters is how many other customers can send traffic from the same address during your rental.

How to check what you bought

1. 1Look up the IP's reputation and fraud score on day one.
2. 2Test it against your real target before building on it — see how to test proxy quality.
3. 3Watch for CAPTCHAs or blocks you did not cause. On a shared IP, those are your neighbours.