Modern anti-bot systems look for patterns that real humans don't produce: identical fingerprints across thousands of sessions, machine-gun request timing, datacenter IPs on consumer sites, and behaviour that never varies. Bans happen when you trip those signals. Here's how to stay below the radar — legitimately.
Key takeaways
- Most bans come from IP reputation, request pace or fingerprint — not random chance.
- Clean, well-sourced residential/mobile IPs are the single biggest factor on strict sites.
- Vary timing, headers and behaviour so sessions look human and distinct.
- When you do get blocked, slow down — don't escalate.
1. Use the right proxy type for the target
The number-one cause of instant bans is using datacenter IPs on sites that block them. Strict targets need residential or mobile IPs. If you're getting blocked before you've done anything, this is almost always why — switch type before tweaking anything else.
2. Start with a clean, well-sourced pool
IP reputation matters enormously. Cheap or abused IPs arrive pre-flagged. A reputable provider with ethically sourced, regularly refreshed addresses gives you a head start that no amount of clever code can replace. Our 2026 ranking scores providers partly on pool quality and freshness.
3. Rotate — but match rotation to the task
For broad crawls, rotate IPs frequently so no single address makes too many requests. For logins and multi-step flows, do the opposite: hold a sticky IP for the whole session. Rotating mid-session is itself a ban trigger.
4. Pace your requests like a human
Add randomised delays and cap concurrency to a believable level. A real person doesn't fetch 50 pages a second. Throttling feels slower but dramatically lifts long-run success because you avoid the rate-limit tripwire entirely.
5. Manage your fingerprint
Beyond the IP, sites read your browser fingerprint — User-Agent, headers, TLS signature, screen and timezone hints. Keep these consistent within a session and plausibly varied across sessions. A residential IP paired with an obvious bot fingerprint still gets caught.
6. Handle cookies and sessions correctly
Accept and persist cookies as a browser would, and keep the cookie jar tied to one IP per session. Discarding cookies or mixing them across IPs makes every request look like a brand-new suspicious visitor.
7. Respect robots, terms and rate limits
Beyond ethics, honouring a site's signals keeps you sustainable. Collect only public data, avoid login-walled content you're not entitled to, and back off when asked. Aggressive scraping invites the very defences you're trying to avoid.
8. Back off intelligently on errors
Treat a 429 or a CAPTCHA as feedback. Pause, rotate, and retry with exponential backoff instead of retrying instantly. Escalating after a block confirms to the site that you're automated.
9. Monitor and adapt
Track success rate per target and per IP subnet. When numbers dip, change one variable at a time — pace, type, or rotation — until they recover. Sites evolve their defences; your approach should evolve too.