SITE.su is an online marketplace specializing in premium domain names, offering more than 40,000 domains in the .ru, .su, and .рф zones. Customers can browse listings, search by keywords or other parameters, view a complete domain catalogue, and download listings in Excel. The marketplace supports both immediate purchase and monthly rental, with prices and domain information displayed for individual listings.

Purchasing a domain includes an online transfer of administrative rights. Rental gives customers the right to change the domain’s name server settings and includes a contractual priority right to buy the domain during the rental period. The purchase price is fixed in the rental agreement, which can last up to 50 months. SITE.su also provides an inquiry form and online chat through its help section, allowing prospective customers to ask questions or make an offer. Listings may include details such as domain age, keyword statistics, and an SEO attractiveness rating based on search data.