Shecan is a legal anti-sanction service providing access to websites banned to Iranians and some other nations just by changing DNS servers with no need for insecure and privacy-violating tools.
Shecan is free for personal and non-commercial use.
Shamad legal certificate for "Shecan" software issue by Ministry of Culture and Islamic Guidance: http://logo.saramad.ir/verify.aspx?CodeShamad=1-2-691804-63-0-3