SITE.su is an online marketplace for premium domain names, offering a catalog of more than 40,000 domains, primarily in the .ru, .su, and .рф zones. The service enables customers to purchase a domain or rent it, with rental arrangements that include a guaranteed right to buy. Purchases can be completed online, with immediate domain transfer, while rental is arranged by assigning the customer’s DNS servers.

The catalog includes keyword domains and names in both Latin transliteration and Cyrillic, with listings showing purchase prices, monthly rental rates, and, for many domains, information such as age and search-related indicators. Customers can browse the full inventory, download a domain list in Excel, or use advanced search to find names by specific terms or topics. For selected listings, shoppers may submit a question or propose their own price. SITE.su also provides account access and directs users to its Help section for contact information and online chat.