SITE.su is an online marketplace specializing in premium domain names, with more than 40,000 names available across the .ru, .su, and .рф zones. The service lets customers buy domains or rent them by the month, providing options for businesses and personal projects seeking a suitable web address. Purchases are completed online with immediate transfer of domain administration rights. Rental works by assigning the customer’s DNS servers, and the rental agreement includes priority rights to buy the domain during the contract period, with the purchase price fixed in advance. Contracts can run for up to 50 months.

Customers can browse the full domain catalogue, download listings in Excel, or use advanced search to find names by keywords and other parameters. Domain listings include purchase and monthly rental prices, registration age, and a rating based on search-related indicators. Visitors can submit questions or price offers through the site, with contact details and online chat available in the Help section.