SITE.su is an online marketplace for premium domain names, offering more than 40,000 domains in the .ru, .su, and .рф zones. Customers can browse names by keyword, translation, or synonym, use advanced search filters, and review information such as asking price, rental price, domain age, and listed popularity indicators. The catalog includes Russian- and Latin-script domains, with options ranging from short names to keyword-focused addresses.

The marketplace supports both immediate online purchases and monthly rentals. Rental is arranged by assigning the customer’s DNS servers, while purchased domains are transferred online. SITE.su also offers rentals with a guaranteed right to buy, giving customers a way to use a domain before acquiring it. Buyers and prospective renters can contact the seller through an online question form to discuss a domain or propose a price; email and telephone details are required. Customers can view or download the full domain list, including reported metrics, and use the site’s help section for contact information and online chat.