Key Scraper Metrics: Success Rate, Items/Sec, Ban Rate, Proxy Health

Why is HTTP success rate alone insufficient to know your scraper is healthy?

• ABecause HTTP responses are always 200 in production
• BA scraper can have 100% HTTP success and still extract zero items if a selector is broken, items-per-second catches this case
• CHTTP success rate is unmeasurable in modern stacks
• DBecause the network always lies