Analysis of information sources in references of the Wikipedia article "중국 대륙의 위키미디어 접속 차단" in Korean language version.
The following chart, based on OONI data, illustrates that multiple language editions of Wikipedia have been blocked in China as of April 2019.{...}OONI measurements show that many of these Wikipedia domains were previously accessible, but all measurements collected from 25th April 2019 onwards present the same DNS anomalies for all Wikipedia sub-domains.{...}Based on these tests, we were able to conclude that China Telecom does in fact block all language editions of Wikipedia by means of both DNS injection and SNI filtering.