SITE.su is an online marketplace for premium domain names, offering a catalog of approximately 39,000 to 40,000 domains in the .ru, .su, and .рф zones. The service enables customers to purchase a domain online with immediate transfer of administration rights or rent it by directing the domain’s name servers to their own. Rental agreements include a priority right to buy the domain during the rental period, with the purchase price fixed in the contract; agreements may last up to 50 months.

Customers can browse the full domain list, download listings in Excel, and use advanced search to find names by keywords or other criteria. The marketplace also provides domain-specific information, including age and an SEO attractiveness rating based on Yandex Wordstat and search-engine indicators. Buyers can use an online inquiry form to ask questions or propose a price, and the site directs users to its Help section for contacts and online chat. SITE.su presents domain acquisition and rental as flexible options for businesses seeking a relevant web address.