SITE.su operates an online marketplace for premium domain names, offering more than 40,000 domains, primarily in the .ru, .su, and .рф extensions. The service is designed for individuals and businesses seeking a memorable web address for a website, brand, or project. Customers can browse available names, search by keyword or other criteria, view a complete domain list, or download listings in Excel format.

The marketplace supports both immediate purchase and rental. Purchases are completed online with instant domain transfer, while rental involves assigning the customer’s DNS servers and includes a guaranteed right to buy the domain. Listings display prices and may include information such as domain age, ratings, and search statistics. Customers can also submit questions or propose a price for a specific domain, with contact options and online chat available through the help section. SITE.su presents a broad selection of keyword-based names, related terms, translations, and transliterations, helping users compare options and choose a domain that suits their needs.