SITE.su is an online marketplace specializing in premium domain names, offering a catalogue of more than 40,000 domains in the .ru, .su and .рф zones. Customers can browse, search and compare available names, including keyword domains, or download the full catalogue for review. The platform provides both direct purchases and domain rentals, with listed prices and information such as domain age and search-related indicators to help users assess options.

Purchases are completed online with immediate transfer of domain administration rights. Rental allows customers to use a domain by assigning their own DNS servers. Rental agreements include priority rights to purchase the domain during the rental period, with the buyout price set in the contract; agreements may last up to 50 months. The site also offers advanced search, online contact and chat through its help section, and a form for questions or price offers. SITE.su serves individuals and businesses seeking memorable domain names for websites, marketing and online ventures.