SITE.su is an online marketplace specializing in premium domain names, offering a catalog of more than 40,000 domains for businesses, entrepreneurs, and other online projects. Its listings include keyword-based and other domain names in the .ru, .su, and .рф zones, with search tools to help visitors find domains by name or other criteria. Customers can browse the full catalog online or download a domain list in Excel format.

The marketplace supports both immediate purchase and rental. Purchases are completed online with instant domain transfer, while rentals are arranged by assigning the customer’s DNS servers. The site also offers rentals with a guaranteed right to buy, giving customers a route to acquire a domain later. For listed domains, visitors can review prices and submit a question or offer a different price. Account access, help information, and an online chat are available through the site. SITE.su presents domain acquisition and rental as flexible options for securing an address for a website or online project.