SITE.su is an online marketplace for premium domain names, offering more than 40,000 domains primarily in the .ru, .su, and .рф extensions. Customers can browse listings, search by keywords or other criteria, view domain details, and download a complete inventory with available ranking information. The marketplace supports both direct purchases and rentals, with prices and details displayed for individual names.

A purchase transfers the domain’s administration rights, with the site describing the process as online and immediate. For rentals, customers pay monthly and use their own DNS servers; rental agreements provide a priority right to buy the domain during the agreement, with the purchase price fixed in the contract. Rental terms can last up to 50 months. Shoppers can contact the marketplace to ask questions or propose a price, and help and online chat are available through its support section. Listings may include a domain’s registration age and an SEO-oriented rating based on Yandex Wordstat and Google and Yandex keyword-efficiency indicators.