Choosing a residential proxy provider for web scraping comes down to four things: IP pool quality, rotation control, pricing structure, and what happens when a target site gets hard. Most providers look similar on a spec sheet and diverge sharply under load.
Here is what to evaluate seriously before committing to any provider.
Residential proxies route your requests through real consumer devices, which makes them harder to fingerprint and block than datacenter IPs. The size of the pool matters less than its freshness and diversity. A large pool of overused IPs that have already been flagged by major anti-bot vendors is worth less than a smaller pool of clean, recently onboarded IPs. Geographic coverage matters if your targets are region-specific — look for 140+ countries minimum if you are scraping anything with geo-restricted content or localized search results.
Rotation behavior is equally important. Per-request rotation gives you a fresh IP on every call, which is what you want for high-volume scraping where session continuity is unnecessary. Sticky sessions — where the same IP is held for a window of time — are necessary when you need to log in, maintain a cart, or navigate multi-step flows. The practical range for sticky sessions is 1 to 30 minutes; anything shorter makes multi-step scraping painful, anything longer tends to produce IPs that have aged out of clean rotation.
HTTP and SOCKS5 support matters depending on your stack. HTTP proxies are simpler and work with most scraping libraries out of the box. SOCKS5 is lower-level, handles more traffic types, and is preferable if you are routing non-HTTP traffic or need finer control. A good provider supports both without charging differently for either. Credential-based authentication via a dashboard — rather than IP whitelisting alone — is worth checking; it makes integration portable across environments without needing to update firewall rules every time your scraper's egress IP changes.
This is where providers diverge most sharply. The two dominant models are per-GB billing and per-request or credit-based billing. Per-GB billing is straightforward: you pay for bandwidth consumed