Editing Turkcell Superonline (section)

===Censorship Using Deep Packet Inspection===
Superonline is one of the most active utilizers of deep packet inspection (DPI) technology among internet service providers in Turkey, operating within a regulatory environment that Freedom House describes as systematically restricting online freedoms.<ref>{{cite web |url=https://freedomhouse.org/country/turkey/freedom-net/2023 |title=Turkey: Freedom on the Net 2023 |website=Freedom House |publisher=Freedom House |date=10 October 2023 |access-date=3 June 2025}}</ref> With this technology, Superonline applies content-based censorship by analyzing users' internet traffic in detail.<ref>{{cite web |url=https://freedomhouse.org/country/turkey |title=Turkey Overview |website=Freedom House |publisher=Freedom House |date=31 March 2025 |access-date=3 June 2025}}</ref>

Unlike traditional packet inspection, DPI technology also scans the content of data packets and provides the ability to detect and block VPN protocols. According to user reports, Superonline has one of the most strictly censored internet service in Turkey, and in the past has taken measures strict enough to completely block VPN protocols such as WireGuard. It also blocks or throttles popular VPN services and their websites such as Cloudflare Warp, ProtonVPN, Surfshark, Psiphon, NordVPN, IPVanish/SpeedtestVPN and constantly tightens its DPI-based scanning systems. There is also allegations that Superonline using DNS poisoning to block certain websites. They were blocking some third party DNS services in the past.