SITE.su is an online marketplace specializing in premium domain names, including keyword-focused domains and existing websites. The store offers a catalog of more than 40,000 names across the .ru, .su and .рф domain zones, with options to purchase or rent a domain. Buyers can complete an online purchase with immediate transfer of domain administration rights. Rental provides the right to change the domain’s DNS servers and includes priority rights to buy the name during the rental period; the purchase price is fixed in the agreement. Rental agreements can last up to 50 months.

Customers can search by words or topics, use advanced search parameters, view the full domain inventory, or download a spreadsheet of listings. Domain pages display prices and may include information such as registration age and search-related metrics. The site also lets visitors submit questions or propose a price, with contact options available in its help section. SITE.su is designed to help individuals and businesses find domain names for their online projects, whether they prefer to buy or rent.