Explainer29 September 20266 min read

Rotating vs sticky proxies: which one your job needs

Rotating vs sticky proxies explained with a decision table by job, plus static IPs as a third option and why a sticky session can end early.

A rotating proxy gives you a new exit IP for each request. A sticky proxy keeps one exit IP for a session of several requests. Rotating vs sticky proxies comes down to one question: do your requests belong together? Independent pages, such as a product catalogue, want rotation. A login followed by the pages behind it wants a sticky session.

There is also a third option people forget: a static IP that stays yours for weeks. This page covers all three, gives a table by job, and explains why a sticky session sometimes ends before you expected.

What a rotating proxy does

With a rotating proxy you connect to one gateway and the provider chooses a different exit address for each new connection. You never see or manage the list.

On ProxyPanda's residential line this is the Randomize IP setting on the service's page in the dashboard. Leave it on, point your client at HOST:PORT with your credentials, and each request leaves from a different home connection.

Rotation is good at spreading load. If you fetch 5,000 public product pages, rotation means no single address makes 5,000 requests, so no single address trips a rate limit. When a request does land on an address the site dislikes, you retry and get another one.

One caveat decides whether rotation works for you at all: the IP changes per connection, and many HTTP clients reuse connections. More on that below.

What a sticky session does

A sticky session holds the same exit IP across several requests. On residential, switch the service to Sticky IP in the dashboard and set how long the session should hold. The dashboard builds a credential with a session ID inside it; copy the whole string as shown. Every request that uses that credential leaves from the same address, for as long as the network can hold it within the lifetime you chose.

Sticky sessions exist because sites connect requests to each other. A login sets a cookie, and the site notices when the next request with that cookie comes from a different household on a different network. Some sites log you out; some ask for a captcha; some flag the account. Keeping the IP steady for the length of the flow avoids that.

The glossary entry for sticky sessions has the one-line version.

Static vs rotating proxies: the third option

Rotating and sticky are both modes of a residential pool: the addresses belong to other people's home connections and come and go. A static IP is a different product.

ISP proxies and datacenter proxies are rented per IP for a term. The address is yours until the term ends, it does not drop when someone's router restarts, and you choose its country, region and city when you order (and the ISP too, on the ISP line). If you want rotation over static IPs, you buy several and cycle through them in your own code.

So the full picture is:

Rotating residential Sticky residential Static ISP / datacenter
Exit IP New per connection Same for one session Same for the whole rental term
How long it holds One request Up to the lifetime you set, if the home connection stays up Until the term ends
Country choice on ProxyPanda No No Yes: country, region, city
Billed Per GB Per GB Per IP, per term
Rotation Done for you Start a new session to change Cycle your own list

Which one for which job

Job Pick Why
Scraping a public catalogue or listings Rotating residential, or a few datacenter IPs cycled if the target accepts them Pages are independent; spreading them out keeps each address well under any rate limit
A login, a cart, or any multi-step form Sticky residential Each step depends on the one before, and the site ties them together by cookie and IP
Account dashboards you manage over weeks Static ISP IP Sites flag accounts whose logins hop between networks and countries
Search rank checks for one country Static ISP or datacenter IP in that country Results depend on location, and our residential line has no country choice
Rank checks where location does not matter Rotating residential Many independent queries, spread thin
Checking your site from several countries Static IPs, one per country You need to know where each request comes from

Two notes on the table. First, try datacenter before residential for anything public: many sites accept it, and residential or datacenter has a quick test. Second, rotation is for spreading polite traffic. Using it to get round a site's per-customer purchase limits, or to run many accounts a site allows one of, is against our acceptable use policy.

For rank tracking specifically, the use case page goes through the setup.

Why a sticky session can end early

You set a lifetime, and the session ended sooner. Nothing is broken; this is what a residential exit is. The usual causes:

  • The home connection went away. The exit is somebody's router or phone. It restarts, loses signal, or moves from Wi-Fi to cellular data, and that address is gone.
  • The ISP handed the household a new address. Consumer IPs are reassigned from time to time.
  • The person left the network. People who share bandwidth can stop whenever they like.
  • The lifetime you chose ran out. Worth checking first.
  • Your credential changed. If the session ID in the password string changes, you are in a new session. Generating a fresh session in the dashboard does exactly that.

Since some of these will happen however good the provider is, design for it. Check the exit IP at the start of a flow, check again before any step that matters, and make the login step safe to run twice.

import requests

STICKY = "http://USERNAME:STICKY_PASSWORD@HOST:PORT"
proxies = {"http": STICKY, "https": STICKY}

def exit_ip():
    return requests.get("https://api.ipify.org", proxies=proxies, timeout=30).text.strip()

start_ip = exit_ip()
# log in and do the first steps here

if exit_ip() != start_ip:
    print("Session moved to a new IP; log in again before continuing.")

Keep flows short. A sticky session that needs to last five minutes survives more often than one that needs to last an hour. If a flow needs the same address for days, it wants a static ISP IP.

The keep-alive pitfall

This one catches people in both directions.

HTTP clients keep connections open and reuse them. For an https:// target, a reused connection is the same tunnel through the proxy, so it is the same exit IP. That means a requests.Session or an httpx.Client on Randomize IP can look sticky, and people report rotation as broken. It also means stickiness you got by accident from keep-alive disappears as soon as the client opens a new connection.

Rotating proxies in Python shows the fix for both libraries. The short rule: if you want a new IP per request, do not reuse connections; if you want the same IP, use a sticky credential and do not rely on keep-alive to hold it.

Quick answers

Is a sticky proxy the same as a static proxy? No. A sticky session holds one residential address for a while and can end early. A static ISP or datacenter IP stays yours for the whole rental term.

How long does a sticky session last? You set the lifetime in the dashboard. The network holds the address as long as the home connection stays up, within that lifetime.

Does rotating or sticky cost more? Both are settings on the same residential service, billed by the gigabyte you use. The pricing page has the rates.

Can I rotate static IPs? Yes. Rent several and cycle through them in your code; the Python post above has a three-line example.

Does rotation stop a site recognising me? It changes your IP. Cookies, logins, browser fingerprint and request rate still identify a client, so rotation is one part of behaving like normal traffic.

Next step

Pick the mode from the table, run the job on a small top-up, and compare the exit IPs you see against what you expected. If a flow keeps losing its session, post the pattern in Discord and someone will help you work out whether it wants a shorter flow or a static IP.

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