SITE.su is an online marketplace for buying and renting domain names, with a catalog of more than 40,000 domains across the .ru, .su, and .рф zones. The service lets customers browse available names, search by keywords or other parameters, view a full catalog, and download domain listings. Its inventory includes the featured domain перины.рф and names related to a range of search terms and topics.

Customers can purchase domains online, with immediate transfer, or rent them by assigning their own DNS servers. The marketplace also offers rental with a guaranteed right to buy, and visitors can contact the team through the Help section or online chat to ask questions or suggest a price. Domain listings display purchase and monthly rental prices, alongside information such as domain age and search-related indicators. SITE.su provides registration and account access for users managing transactions. The site presents domain acquisition and rental as flexible options for businesses and individuals seeking an internet address, while its search tools and downloadable catalog help users compare available names.