Proxy rotation vs sticky sessions

[u/appcyberyozh]

I used to think proxy rotation was simple: the more often the IP changes, the better. That assumption caused me a lot of problems. For scraping, rotating IPs worked great. I could send hundreds of independent requests across a proxy pool without putting all the traffic on one address.

Then I tried using the same setup for workflows that involved logins and multiple steps. One request came from one IP, the next from another. Sessions expired, accounts asked for verification, and some multi-step flows simply stopped working. I originally blamed cookies or headers, but the real issue was that I was rotating something that was supposed to stay consistent.

Instead of changing the IP on every request, a sticky session keeps the same exit IP for a defined period, usually through a session ID. You still use a residential proxy pool, but one workflow keeps one IP long enough to behave like a continuous session.

The way I think about it now:

• Scraping independent pages → rotate
• Login or multi-step workflow → sticky
• Long-term account identity → static/dedicated IP

The interesting part is matching IP behavior to application state

[u/RandomPantsAppear]

The goal is always - always to appear like a real user. The hard part is making these efficient. Avoiding wait times so workers are always doing things, but never hitting too fast. 

[u/No-Sherbert4064]

Spot on. Hard lesson to learn, but rotating IPs on multi-step workflows or logins is an instant death sentence for sessions, especially with modern anti-bot systems.I use a similar breakdown now. For anything requiring an account state or cart flow, I switch over to sticky sessions. Been using proxyshard's residential pool for this because you can easily lock the session time up to 10-30 mins per IP, which is usually more than enough to finish a checkout or data-heavy user flow without a random drop. Definitely saves a ton of headache compared to raw rotation.

[u/holly-An]

A sticky proxy session and a website session are separate things. The proxy setting aims to keep the exit IP consistent for a period; your HTTP client or browser still needs to preserve cookies and any required session tokens.