Seemingly this is nothing to do with the government, as controlling through the website of the insitution where there's a form to check if a given domain is blo

Seemingly this is nothing to do with the government, as controlling through the website of the insitution where there's a form to check if a given domain is blocked [1], it tells me that there are "no blocks on this domain", i.e. protonmail.com. You can try instead wikipedia.org to see what it looks like when a domain is blocked. [1] http://internet.btk.gov.tr/sitesorgu/ http://internet.btk.gov.tr/sitesorgu/