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. Customers can browse and search for domains by keyword or other criteria, view a full listing, or download domain data in Excel. The marketplace supports both immediate online purchases and rentals, allowing individuals and businesses to find names suited to their projects.

Purchasing transfers domain administration rights, while renting allows customers to assign their own DNS servers. Rental agreements include a priority right to buy the domain during the rental period, with the purchase price fixed in the contract; agreements can run for up to 50 months. Listings include prices, domain age, and indicators related to search popularity and SEO potential. Customers can submit questions or price offers through the site, with email and phone details required, and can access assistance and online chat through the Help section. SITE.su presents domain acquisition and rental as flexible options for establishing an online presence.