SITE.su is an online marketplace specializing in premium domain names, offering more than 40,000 domains for businesses and individual projects. Its listings include names in the .ru, .su, and .рф zones, with options to browse by keyword, related terms, translations, or transliterations. Customers can purchase a domain online with immediate transfer or rent one by assigning their own DNS servers. The rental service can include a guaranteed right to buy the domain later.

The marketplace provides instant purchase and rental options, an advanced search, and downloadable domain listings in Excel, including metrics such as age and ratings. Shoppers can view listed prices, compare available names, and submit a question or price offer through the site. A help section offers contact details and online chat, while account access supports registration and sign-in.

SITE.su presents a broad catalogue of domain names and flexible ways to secure them, helping users find an address suited to an online business, website, or personal project.