伊朗's 網際網路審查 is managed by the Supreme Council of Cyberspace and enforced through the 電信基礎設施 Company (TIC), which controls all international internet gateways. The government blocks access to thousands of websites including Facebook, Twitter, YouTube, Telegram, and most international news outlets. 伊朗 also operates the National Information Network (NIN, also known as the 'halal internet') - a domestic intranet designed to replace the global internet.
During the 2022 瑪莎·阿米尼 protests, 伊朗 imposed near-total internet shutdowns in multiple provinces, throttled mobile data to unusable speeds, and specifically targeted VPN and Tor traffic. The government uses DPI technology supplied by both domestic and Chinese firms to identify and block circumvention tools. Tor's public 中繼 IP 位址 are blocked, and the authorities actively scan for 橋接 connections.
Despite these measures, Tor usage surges during every crackdown. The Tor 計畫 reported a significant increase in Iranian 橋接 users during the 2022 protests, demonstrating that Tor remains one of the few tools capable of piercing 伊朗's censorship during the most critical moments.