SITE.su is a Russian-language marketplace specializing in premium domain names. Its catalog features more than 40,000 domains, primarily in the .ru, .su, and .рф zones, including keyword-based names and short numeric domains. Customers can browse listings, search by terms or other parameters, view domain details, and download the full catalog as an Excel file.

The marketplace offers both outright purchases and monthly rentals. A purchase is completed online with immediate transfer of domain administration rights. Rental allows customers to use a domain by assigning their own DNS servers, with contracts offering a priority right to buy the name at a price fixed in advance. Rental agreements can last up to 50 months. Listings show prices, domain age, and SEO-related indicators, helping buyers compare options. Customers can contact the marketplace to ask questions or propose a price, and assistance is available through its help section and online chat. SITE.su presents domain acquisition and rental as options for businesses and projects seeking an online name for the Russian market.