SITE.su is an online marketplace specializing in premium domain names, with more than 40,000 domains offered across the .ru, .su and .рф zones. The service helps businesses, entrepreneurs and individuals find a domain for a website or online project, using keyword, synonym and transliteration searches, as well as filters and a downloadable full inventory.

Customers can purchase a domain online, with transfer of administrative rights, or rent it by arranging for their own DNS servers to be assigned. Rental is priced monthly and includes a contractual priority right to buy the domain during the rental period, at a purchase price fixed in the agreement. Rental agreements can last up to 50 months. Listings show purchase and rental prices and may include domain age and search-related indicators.

SITE.su also provides a contact form for questions or price offers, along with a help section and online chat. Its catalog includes domains in Latin and Cyrillic scripts, giving customers several ways to explore names suited to their preferred wording and domain zone.