# Proxy list vs backconnect gateway: who rotates? [All guides](https://proxylane.dev/blog) PROXY FUNDAMENTALS · 4 MIN READ Compare a manually managed proxy list with a provider gateway, including endpoint health, rotation ownership, and integration tradeoffs. **Founder, ProxyLane** Published September 26, 2026 On this page [Compare the integration boundary](https://proxylane.dev/blog/proxy-list-vs-backconnect#compare-the-integration-boundary) [Decide who should own rotation](https://proxylane.dev/blog/proxy-list-vs-backconnect#decide-who-should-own-rotation) [Test the actual exit boundary](https://proxylane.dev/blog/proxy-list-vs-backconnect#test-the-actual-exit-boundary) **Enterprise from $2/GB at 5 TB+** Non-expiring traffic, location targeting and rotating or sticky sessions for your existing tools. [Sign up](https://proxylane.dev/register?interest=proxies) A proxy list gives an application multiple endpoints to manage; a backconnect gateway gives it one provider endpoint that can route requests through a pool. Choose the list when the client needs explicit endpoint control, and a gateway when the provider's documented selection and rotation rules fit the job. ## Compare the integration boundary “Backconnect” is vendor terminology, not an IETF-defined protocol category. RFC 9110 defines HTTP proxy behavior but does not specify whether a customer receives a list, one gateway, or provider-managed rotation. Product documentation must define those details for each service. | Design | Application connects to | Rotation and health work | Main operational question | | --- | --- | --- | --- | | Endpoint list | One of several supplied addresses | Client or orchestration layer tracks failures and chooses the next endpoint | How are the list and dead endpoints refreshed? | | Provider gateway | A stable gateway host and port | Provider chooses or changes the exit under its policy | At what boundary does the exit change? | A list may be a set of fixed addresses, while a gateway may select from a changing pool. Those are common product patterns, not guarantees from the names. Oxylabs documents API-retrievable proxy lists for one offering; Crawlbase documents a single-port backconnect service with sticky sessions. These examples show why the provider's own endpoint guide matters, not a universal implementation. ## Decide who should own rotation Suppose a collection worker processes independent public pages and records each result separately. With a list, the worker can choose an endpoint, detect a connection failure, and apply its own retry and cooldown rules. That gives the engineering team control, but it also makes the client responsible for stale endpoints and per-IP limits. With a gateway, the application can keep one proxy URL while the provider handles exit selection. Integration and pool maintenance may be simpler, but the team must understand the provider's rotation policy and observability. A gateway address remaining constant does not mean the egress IP stayed constant. For a multi-page flow that depends on cookies or a server-side session, rotation frequency matters more than the number of configured proxy URLs. Confirm whether selection occurs per request, connection, named session, or timed interval. The [rotation and sticky-session guide](https://proxylane.dev/blog/proxy-rotation-and-sticky-sessions) treats session continuity as its own decision. ## Test the actual exit boundary Ask the provider for the exact behavior on successful requests, reconnects, retries, and session expiry. Also confirm authentication method, supported protocols, allowed concurrency, how exit IPs can be observed, and whether list endpoints can change without notice. Run a small authorized check through the same client library planned for production. Log the selected endpoint, returned exit address from an endpoint the team controls, request timestamp, session key, and result. For a list, verify failover and refresh behavior. For a gateway, verify how an exit changes across the documented rotation boundary. If the acceptance rule requires pinning a specific address, a gateway that rotates without a pinning option may not fit. If provider-managed selection satisfies the task, one gateway can remove endpoint-maintenance work. Make the choice from the rotation contract and observed behavior, not the label alone. ## Sources and further reading - [RFC 9110: HTTP semantics, intermediaries](https://www.rfc-editor.org/rfc/rfc9110.html#section-3.7) - [Oxylabs documentation: proxy lists](https://github.com/oxylabs/agent-skills/blob/f999148325a201379df38898fb4743173cd04f75/skills/proxies/dedicated-datacenter.md) - [Oxylabs: HTTP proxy endpoints](https://oxylabs.io/features/http-proxies) - [Crawlbase: proxy API and backconnect](https://crawlbase.com/docs/proxy-api) ProxyLane From $2/GB at 5 TB+ ## Your next connection Starts here Non-expiring traffic, location targeting and rotating or sticky sessions for your existing tools. 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