SITE.su is an online marketplace specializing in premium domain names, offering more than 40,000 domains across the .ru, .su, and .рф zones. The store serves businesses, entrepreneurs, and project owners looking to establish or strengthen their online presence through a relevant, memorable web address. Customers can purchase domains online, with ownership administration transferred immediately, or rent them by assigning 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. Rental fees are presented per calendar month, and agreements can run for up to 50 months.

SITE.su provides tools to browse the domain inventory, including keyword searches, advanced search filters, and options to view or download the full list. Listings may include purchase and rental prices, domain age, and indicators of search and SEO appeal. Customers can contact the store with questions or price offers, and support is available through the Help section and online chat.