SITE.su is an online marketplace for premium domain names, offering more than 40,000 domains, primarily in the .ru, .su, and .рф zones. Customers can browse available names, search by keywords or other parameters, and view domain information such as age and search-related indicators. The marketplace supports both direct purchases and monthly rentals, with online transactions designed for immediate processing.

When a domain is purchased, its administrative rights are transferred to the buyer. Rental gives the customer the right to set the domain’s name servers; rental agreements can run for up to 50 months and include a priority right to buy the domain at a price fixed in the agreement. Customers can also submit questions or price offers about individual listings. SITE.su provides a full domain catalogue for browsing or download, along with help and online chat through its support section. Its inventory includes exact-match names, names beginning with a chosen keyword, and transliterated alternatives.