SITE.su is an online marketplace specializing in premium domain names, offering more than 40,000 domains for purchase or rental. Its listings focus on keyword-rich names in the .ru, .su, and .рф extensions, with options suited to businesses and personal projects seeking a web address. Customers can buy domains online with immediate transfer or rent them by assigning their own DNS servers. The rental option can include a guaranteed right to purchase the domain later.

The site provides tools to browse the full inventory, search by keywords or other parameters, and download domain lists, including data on indicators such as age and ratings. Buyers can purchase or rent eligible domains directly through the site, while those wishing to negotiate can submit a question or offer a price. Contact details and online chat are available in the Help section. SITE.su presents domain acquisition as a flexible service, combining immediate transactions with rental arrangements and access to a broad catalog of names across several popular domain zones.