SITE.su is an online marketplace for premium domain names, offering more than 40,000 domains across the .ru, .su, and .рф zones. Customers can browse listings, search by keywords or other parameters, view domain details, and download the full inventory as an Excel file. The marketplace supports both immediate purchase and monthly rental, giving businesses and individuals options for securing a domain for a website, business, or personal project.

Purchasing a domain involves transferring its administrative rights, while rental provides the right to set the domain’s name server addresses. Rental agreements include a priority right to buy the domain during the contract term, with the purchase price fixed in the agreement; contracts may run for up to 50 months. Listings show prices, domain age, and available SEO-related indicators. Buyers and prospective renters can submit questions or offers, and the site provides help and online chat through its support section. SITE.su presents domain selection and transactions as online services, including instant domain transfer after purchase.