SITE.su is an online marketplace specializing in premium domain names, with a catalog of more than 40,000 listings across the .ru, .su, and .рф extensions. The store serves businesses and individuals seeking a domain for a website, brand, or personal project, offering both immediate purchase and rental options. Buyers can complete a purchase online, with the domain transferred immediately, while rental lets customers use a domain by assigning their own DNS servers. Some rental arrangements include a guaranteed right to purchase the domain later.

The marketplace provides tools to browse the full catalog, search by keywords or other parameters, and download domain listings in Excel. Listings may include details such as price, age, and search-related indicators. Customers can contact the store through its help section or online chat to ask questions, discuss a domain, or propose a price. SITE.su combines a broad selection of domain names with flexible ways to acquire and use them, making it easier for customers to find an option suited to their needs and budget.