SITE.su is an online marketplace for premium domain names, offering customers a choice of approximately 40,000 domains, primarily in the .ru, .su, and .рф zones. The service helps individuals and businesses find keyword-based names and other domains for websites and online projects. Customers can browse the full inventory, use extended search options, or download a domain list with available metrics.

SITE.su offers two ways to obtain a domain: immediate online purchase or rental. Purchases are completed online with immediate domain transfer, while rental involves assigning the customer’s DNS servers. The marketplace also offers rental with a guaranteed right to buy, giving customers a route from temporary use to ownership. Listings show purchase prices and monthly rental rates, and some include age and rating information. Buyers can submit questions or propose a price through the site, with help and online chat available in the support section. The platform focuses on making domain discovery and acquisition straightforward, providing searchable listings and direct options to buy or rent names for business and other web projects.