Proxy providers all look the same on the pricing page: big numbers, low per-gigabyte rates, impressive location counts. Then you wire one in and your scraper still gets blocked, or the "unlimited" plan turns out to meter you, or the cheap addresses were burned by someone else last week. Choosing a provider is an engineering decision, not a shopping decision, and the criteria that matter are rarely the ones on the landing page. Here is the checklist I actually use.
Private versus shared addresses
This is the single biggest quality difference. Shared addresses are used by many customers at once, so you inherit the reputation of strangers, and you get flagged for behavior that was not yours. Private addresses answer to you alone, so your success rate depends on your own behavior. If a provider does not make this clear, assume shared.
Rotation that actually rotates
Rotation is the feature that keeps each address under a target's rate limit, so it is not optional for scraping. Check that the pool is large, that it cycles per request or on a schedule you control, and that you can also hold a sticky session when a stateful flow needs one. A "rotating" plan with a tiny pool is just a small set of addresses you burn slowly.
Real traffic terms
"Unlimited" is the most abused word in this market. Read the actual terms. Some plans meter every gigabyte, some throttle after a soft cap, some are genuinely unlimited. For heavy scraping, metered traffic turns every large job into a budget calculation, which is the wrong way to plan a crawl. Confirm what unlimited means before you rely on it.
Protocol and concurrency fit
Match the provider to your stack, not the other way around.
- Protocols: HTTP, HTTPS, and SOCKS5 support means your existing client connects without a rewrite, and you can switch to SOCKS5 for WebSockets or headless work.
- Threads: a high concurrency ceiling, into the thousands, is what lets a large job finish in one sitting instead of overnight.
- Auth: standard user and password auth that your libraries already understand, not a bespoke scheme.
A free test you can run on your own targets
This is the criterion that cuts through every marketing claim. A spec sheet cannot tell you whether a provider works on the specific sites you scrape, because that depends on the address reputation against those exact targets. A real trial can. Insist on testing against your own workload before you pay, and judge by the success rate you measure, not the numbers advertised.
Where WinGate lands on this list
For transparency, here is how WinGate maps to the checklist, since this is a proxy blog. It provides private IPv4 proxies that are yours alone, automatic rotation from a worldmix pool with a sticky option, genuinely unlimited traffic, HTTP, HTTPS, and SOCKS5 support, and up to 5000 threads for concurrency. And it offers a free 2 hour test, which is the point of the whole checklist: you do not take any of these claims on faith, you run your own scraper against your own targets and measure the result before you commit a cent.
An honest note: no provider, this one included, makes aggressive scraping acceptable or exempts you from a site's terms. The best pool in the world still needs sensible pacing and respect for the targets you hit. A checklist picks the right tool, it does not replace using it responsibly.
The takeaway: ignore the landing-page numbers and check the things that decide outcomes. Private not shared addresses, real rotation with a sticky option, honest traffic terms, protocol and concurrency fit, and a free trial you run on your own targets. Score providers on those five and the right choice stops being a guess.
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