Web scraping methodology Patterns for reliable, ethical web scraping with fallback strategies and anti-bot handling. Scraping cascade architecture Implement multiple extraction strategies with automatic fallback: Anti-bot landscape (as of 2026-05) The cascade above ( → → Playwright + ) handles plain HTML and lightly-protected JS sites. Modern anti-bot stacks (Cloudflare Bot Management / Turnstile, DataDome, Akamai Bot Manager, PerimeterX) layer multiple detection signals: TLS / HTTP-2 fingerprints, browser fingerprints, JS-execution proofs, residential-IP reputation, session behavior. No sing…