Since a referendum in April, which opponents claim Recep Tayyip Erdogan won by unfair means, censorship has increased.

A Turkish opposition website which has been blocked by the government 51 times has applied to be listed in the Guinness World Records.

Sendika, a 17-year-old leftwing agency that covers topics such as opposition protests and Kurdish issues, is one of the key targets of President Erdogan’s crackdown on critical media. Since a controversial constitutional referendum in April, which opponents claim Mr Erdogan won by unfair means, censorship has increased. Sendika was one of the outlets covering the “Hayir” (“No”) protests in the days after the referendum.

“Our website was blocked 15 times before the referendum. Immediately after it, they were blocking us daily,” Ali Ergin Demirhan, the editor-in-chief told The Times. “Now it is around twice a week.”

Sendika became well known during