How to Scrape Without Getting Blocked: 12 Rules for 2026

By Elena Park 2026-05-21 9 min read Engineering

Twelve rules that separate professional scrapers from the script-kiddies who get blocked in hour one.

Rules 1–4: IP hygiene

1. Match IP type to target (residential for protected, datacenter for open). 2. Rotate aggressively. 3. Evict failed IPs immediately. 4. Use geo-matched IPs for localized sites.

Rules 5–8: Browser fingerprint

5. Use stealth-patched headless browsers. 6. Match TLS/JA3 of a real Chrome. 7. Randomize viewport, user-agent, time zone. 8. Don't leak via WebRTC.

Rules 9–12: Behavior

9. Throttle requests. 10. Randomize timing. 11. Respect robots.txt where applicable. 12. Use sticky sessions for multi-step flows.

Bonus: monitor & adapt

Anti-bot stacks evolve weekly. Maintain a dashboard for success rate per target — investigate any drop >5%.

When to give up DIY

If you're spending more than 20% of engineering time on anti-bot maintenance, switch to a managed Web Unlocker.

Read more on ToptierProxy Blog or see our Best Proxies 2026 guide.