SITE.su is an online marketplace for premium domain names, offering more than 39,000 domains, primarily in the .ru, .su, and .рф zones. Customers can browse listings, search by keywords or other parameters, and review information such as domain age, ratings, and search-related statistics. The marketplace supports both immediate purchase and rental, with listed prices shown in rubles.

Buying a domain transfers its administration rights to the customer. Renting grants the right to use the domain by assigning the customer’s name servers, with rental prices calculated per calendar month. Rental agreements include a priority right to buy the domain during the rental period, at a purchase price fixed in the agreement; contracts can last up to 50 months. SITE.su also provides options to download the full domain list, submit questions or price offers, and contact the service through its Help section and online chat. By combining searchable listings with purchase and rental options, the marketplace serves individuals and businesses seeking domain names for websites and online projects.