Rotate proxies more frequently. Buy a larger proxy pool. Reduce request rate. Error: "Connection timed out" Cause: Proxy is dead or network route is congested.

Re-test proxies. Remove all timeouts. Increase timeout to 30 seconds. Google returns CAPTCHA even with proxies Cause: Google has fingerprinted your proxy’s subnet or detected automation patterns.

10–20.

Private datacenter proxies from specialized SEO providers (e.g., ProxyBonanza, SquidProxies, BuyProxies) OR rotating residential proxies.

Shared or private datacenter proxies.

Any working proxy with low latency.

If scanning your own site, you may not need proxies at all. Part 6: Common Proxy Errors and Fixes in ScrapeBox Error: "Proxy returned 407 Proxy Authentication Required" Cause: The proxy requires a username/password, but you didn't provide it.