Sticky session
A proxy configuration that keeps the same exit IP address for an extended period, instead of rotating to a new IP on every request.
A sticky session is a proxy feature that holds one exit IP for the duration of a session rather than rotating addresses on every request. Providers usually implement it with a session token embedded in the proxy username: requests carrying the same token leave through the same IP, typically for a window of one to thirty minutes or for as long as the IP stays available. Changing the token requests a fresh address from the pool.
Stickiness matters because real browsing does not hop between cities mid-session. A login flow, a checkout, or a multi-page research session that changes IP between requests looks broken to the destination and can invalidate the session server-side. Rotating IPs are the right tool for stateless, high-volume collection of public pages; sticky sessions are the right tool whenever state, authentication, or session continuity is involved, which covers most account management and QA scenarios.
Oculr's proxy provider vault handles this per profile: when a profile is bound to a provider such as Bright Data, Oxylabs, Decodo, IPRoyal, SOAX, or NetNut, Oculr synthesizes the proxy URL with a per-profile sticky session token, so each profile keeps its own stable exit IP and bindings resolve on every launch path.
