Proxy server

Practical guides about residential proxies, ISP proxies, web data access, and proxy infrastructure.

In-Depth Guide to Nginx 499 Errors: Causes of "Client Closed Request," Log Analysis, and a Complete Fix (2026)

This article provides a detailed analysis of the causes and log implications of "Client Closed Request" errors, along with solutions for proxy, CDN, and crawler scenarios, helping you quickly troubleshoot and optimize fo…

2026-07-07

Proxy server

A Detailed Guide to IP Bans: Reasons and How to Avoid Them

Understand the reasons, types, and triggering mechanisms of IP bans, and master methods to avoid them—including proxy rotation, high-anonymity proxies, request rate limiting, and traffic management strategies.

2026-07-07