SITE.su is an online marketplace specializing in premium domain names for businesses, personal projects, and brands. Its catalog offers around 40,000 domains, primarily in the .ru, .su, and .рф zones, including keyword-based names and domains related by spelling, transliteration, translation, or synonyms. Customers can browse the full catalog, search by words or themes, and use advanced search options to find suitable names. Listings include purchase and monthly rental prices, with additional information such as domain age and ratings where available.

The marketplace supports online domain purchases with immediate transfer, as well as rentals arranged by assigning the customer’s DNS servers. Some rental offers include a guaranteed right to buy the domain later. Customers can purchase or rent directly through the listing interface, or contact the team to ask questions or propose a price. SITE.su also provides downloadable domain lists in Excel format, a help section, and online chat. Its services give customers flexible ways to secure a memorable web address without requiring an immediate purchase.