How to Avoid IP Bans When Scraping in 2026
By Marcus Reiner · 2026-03-15 · 10 min read · Engineering
IP bans almost always come from one of five mistakes. Here's the checklist that keeps your pool clean.
Mistake 1 — too many requests per IP
The single biggest cause. Even a clean residential gets flagged at >1 req/sec on most targets. Throttle to 1 req per 3-5 seconds per IP, or rotate aggressively.
Mistake 2 — predictable timing
Bots send requests at exactly 1.0s intervals. Humans don't. Add jitter: random delay between 2s and 7s, plus occasional 30s pauses to simulate reading.
Mistake 3 — bad TLS fingerprint
A perfect residential IP with a Python-requests TLS handshake = ban. Use curl_cffi or a real browser. This is the single most overlooked fix.
Mistake 4 — wrong IP class for the target
Datacenter on Amazon = ban in seconds. Residential on Cloudflare-protected APIs = usually fine. Match IP class to target hardness.
- Soft targets (small sites, open APIs) — datacenter ok
- Medium (most e-commerce) — residential
- Hard (social, ticketing, sneaker, finance) — residential or mobile + unblocker
Mistake 5 — no session warming
Cold-hitting a deep URL with zero cookies and zero referer is a tell. Warm: hit homepage → category → product. Reuse session 5-10 requests then rotate.
FAQ
How long do bans usually last?
On most sites, 24-72 hours. On Cloudflare/Akamai-protected ones, IPs can be permanently flagged in the reputation graph.