Turkey's internet censorship is governed by Law No. 5651, which gives the Information and Communication Technologies Authority (BTK) broad powers to block websites and content. Over 400,000 websites have been blocked in Turkey, including Wikipedia (blocked 2017-2020), various social media platforms during crisis events, and thousands of news outlets deemed critical of the government.
During the 2023 earthquakes, the Turkish government throttled Twitter and other social media platforms where citizens were sharing criticism of the government's disaster response. Similar social media throttling occurred during the 2016 coup attempt, the 2015 Ankara bombings, and numerous protests. The pattern is clear: when public discourse becomes inconvenient for the government, the internet is restricted.
Turkey also blocks many VPN services, though enforcement is inconsistent. The BTK has targeted popular VPN providers by blocking their IP ranges and intercepting their DNS queries. Tor's public relays are periodically blocked, particularly during politically sensitive periods, making pluggable transports necessary for reliable access.