Engineering Blog
Production practices for proxy reliability, anti-blocking, compliance, and cost optimization.
Camoufox's C++ engine-level spoofing covers the JS layer, but it can't touch the transport layer. The TLS handshake identifies you as script or human before the first HTTP request.
CPU-based HPA is nearly useless for browser instances. Startup CPU spikes don't mean it's serving. Memory doesn't release after close(). Browsers aren't stateless services.
Tab 1 loads fine. Tabs 2 and 3 both time out. 120 seconds isn't enough. 1,600,000ms isn't enough either. The problem isn't page load speed — it's the connection pool.
Unkillable Chrome processes, accumulating zombies, 24GB virtual memory leaks over 21 hours — scaling isn't just running 1,000 copies of the same instance.
10-day Scrapy day 10 lecture notes.
10-day Scrapy day 09 lecture notes.
10-day Scrapy day 08 lecture notes.
10-day Scrapy day 07 lecture notes.
10-day Scrapy day 06 lecture notes.
10-day Scrapy day 05 lecture notes.