Site.su is an online marketplace specializing in premium domain names and keyword-based web addresses. It offers a catalog of more than 39,000 domains across the .ru, .su, and .рф zones, with options to purchase or rent a name. Buyers can complete purchases online, with domain administration rights transferred immediately. Rental gives customers the right to change the domain’s DNS server addresses and includes a priority option to buy the domain during the agreement. The purchase price is fixed in the rental contract, and agreements can last up to 50 months.

The marketplace helps visitors explore its inventory through keyword and advanced searches, view domain details, and download a full catalog in Excel format. Listings include purchase and monthly rental prices, along with available age and search-performance indicators. Customers can ask questions about a specific domain or propose a price, with contact information and online chat available through the Help section. Site.su presents its service as a convenient way to find, acquire, or rent domain names for websites and online projects.