SITE.su is an online marketplace specializing in premium domain names, offering a choice of more than 39,000 domains across the .ru, .su, and .рф zones. Customers can purchase a domain through an online transaction with immediate transfer of administration rights, or rent one by assigning their own DNS servers. Rental agreements include a priority right to buy the domain, with the purchase price fixed in the contract; rental is priced by calendar month and can run for up to 50 months.

The marketplace provides tools to browse the full domain inventory, search by keywords or other parameters, and download a domain list in Excel format. Listings show purchase and rental prices, along with details such as domain age and search-related indicators. Customers can ask questions about a specific domain or propose a price, and the site offers contact information and online chat through its Help section. SITE.su serves individuals and businesses seeking memorable, keyword-based domain names for websites and online projects, with both immediate acquisition and flexible rental options.