指南
网站封锁与网络审查 — 指南
深入了解网站被封锁的原因、防火墙和地理封锁的工作原理，以及如何恢复访问。
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Why Is a Website Blocked? 7 Causes Explained
Understand the seven most common reasons a website is blocked or inaccessible — from server outages to government censorship.
阅读指南 → 🌍Geo-Blocking: Why Some Sites Are Region-Locked
Learn what geo-blocking is, why companies use it, how it works technically, and how to get around it with a VPN.
阅读指南 → 📡ISP Blocking: How Your Internet Provider Restricts Access
How internet service providers block websites using DNS, IP filtering, URL filtering, and deep packet inspection.
阅读指南 → 🏛️Government Internet Censorship: How Countries Block Websites
How governments restrict internet access — from China's Great Firewall to Russia's Roskomnadzor and beyond.
阅读指南 → 🔓How to Access Blocked Websites: 6 Working Methods
VPN, Tor, alternative DNS, web proxies — a practical comparison of every method to unblock websites.
阅读指南 →想立即检查某个网站是否宕机或被封锁？