The Cyrillic top-level domain .САЙТ is used to designate websites and web pages in the Russian language. It was created in 2014 and is available for registration to anyone, including commercial and non-commercial organizations, individual entrepreneurs, and private individuals. Using the Cyrillic domain .САЙТ can help establish a more recognizable online presence for websites in the Russian language. Additionally, Cyrillic domains can be beneficial for targeting a local audience that speaks Russian.

Like with other domain zones, the rules for registering and using the Cyrillic domain .САЙТ are established by ICANN and domain name registrars. Domain registration for .САЙТ is carried out through domain name registrars that provide services for Cyrillic domains. In general, Cyrillic domains have gained popularity among webmasters and website owners in Russia and other countries with Cyrillic alphabets. They serve as an additional tool for enhancing online presence and improving a website's SEO rankings.