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 service enables customers to purchase a domain or rent it, with options designed for businesses and other online projects seeking a suitable web address. Purchases are completed online, with domain administration rights transferred immediately. For rentals, customers can assign their own DNS servers, and agreements include a priority right to buy the domain during the rental period, at a price fixed in the contract. Rental terms can last up to 50 months.

Visitors can search available domains by keyword, use expanded search parameters, review a full catalogue, or download domain listings in Excel. Listings may include details such as purchase and monthly rental prices, domain age, and search-related indicators. Customers can submit questions or price offers through the site, and assistance is available through its help section and online chat. SITE.su provides a focused way to explore, compare, and secure domain names.