What Is The Common Proxy Error List?

A proxy error list is a collection of common error codes and messages that users may encounter when using proxies. These errors help identify issues like blocked requests, authentication failures, etc

Error Code	Meaning	Proxy Context
403 Forbidden	Access denied to the requested resource	Often caused by IP bans, geo-blocking, or bot detection systems
404 Not Found	Resource does not exist	The target URL is wrong
407 Proxy Authentication Required	Proxy server requires authentication	Proxy credentials are missing or invalid
429 Too Many Requests	Rate limit exceeded	Proxy is reusing the same IP too often or sending too many requests in a short time
503 Service Unavailable	Website Server temporarily down	The target site is down
500 Internal Server Error	Server-side issue	May occur when site fails to handle requests properly
301/302 Redirects	Permanent or temporary redirect	Can lead to access loops or misroutes if not handled properly with site