SITE.su is an online marketplace specializing in premium domain names, with more than 40,000 listings across the .ru, .su and .рф zones. The service helps businesses and individuals find memorable, keyword-focused domains for websites, brands and online projects. Customers can purchase a domain or rent it, with options presented for immediate online transactions. A purchase transfers the domain’s administrative rights, while rental allows the customer to set their own name server addresses. Rental agreements include a priority right to buy the domain during the contract period, with the purchase price fixed in the agreement; contracts can run for up to 50 months.

SITE.su offers tools to browse its full inventory, search by keywords or other criteria, and download domain lists in Excel format. Listings display prices and may include details such as domain age and search-related indicators. Prospective buyers and renters can submit questions or price offers, and the site provides contact information and online chat through its Help section.