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Dev.to
7/22/2026
Anti-bot without melting your budget: the proxy waterfall.

Anti-bot without melting your budget: the proxy waterfall.

Short summary

A tiered proxy waterfall cuts scraping costs by routing requests through escalating tiers—free direct, TLS-fingerprint fix, datacenter, residential, and managed unlocker—only escalating when a lower tier demonstrably fails. The author reduced BrightData spend by 90% and ScrapingBee by 67% by applying this structure. Content-level validation (checking for expected data, not just HTTP 200) and caching which tier works per URL pattern are the two mechanisms that make it effective.

  • •Tier scraping requests from free direct → TLS fingerprint fix → datacenter → residential → managed unlocker
  • •Content-level validation detects soft blocks that return HTTP 200 with captcha or decoy pages
  • •Cache the winning tier per URL pattern to skip ladder traversal on repeat requests

Generated with AI, which can make mistakes.

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