SITE.su is an online marketplace specializing in premium domain names, with more than 40,000 domains available across the .ru, .su, and .рф zones. The service enables customers to purchase a domain through an online transaction with immediate transfer of administrative rights, or rent one by assigning their own DNS servers. Rental agreements include a priority right to buy the domain, with the purchase price fixed in the contract; terms can last up to 50 months.

Customers can browse the full domain catalogue, download a list for review, or use advanced search to find names by keywords and other criteria. Listings display information such as purchase and monthly rental prices, domain age, and search-related indicators. Buyers can also contact the marketplace to ask questions or propose a price, with email and telephone details required for inquiries. SITE.su presents domain names for a range of businesses and online projects, offering flexible acquisition options and tools to help customers compare available names.