Vpornacte

Our users download about 12 videos per second. The average length of each is three minutes. Only to view all downloadable videos by moderators (even without checks, whether they violate someone’s rights or not) takes 50,000 hours a day.
Pavel Durov

The search for clips of one Russian letter on the resource vkadre.ru - the video hosting of the social network VKontakte gives out quite savory strawberry results, including those not closed 18+ in free access.
Geographically, the servers are located in Russia (Sovintel) and fall under the norms of the Russian legislation, for example, under Art. 242 of the Criminal Code

Thus, the social network VKontakte is seen in the distribution of materials of this nature, all this is sad ...
')
UPD: the letter “A” cleaned the results (only the first page), but you can try other letters of the Russian alphabet and other pages in the search results.

UPD2: the letters cleaned the results, but you can try for example just “porn” and there will be the desired results.