SITE.su is an online marketplace for premium domain names, offering a catalogue of more than 40,000 domains, primarily in the .ru, .su and .рф extensions. The service helps individuals and businesses find an address for a website, online project or brand, with search tools for exploring domains by words and other criteria. Visitors can browse the full catalogue, review listed prices and domain information, and download a complete list for further review.

Domains are available for immediate purchase or monthly rental. The marketplace says purchased domains are transferred online, while rental is arranged by assigning the customer’s DNS servers. Some rental offers include a guaranteed right to buy the domain later. Customers can use the shopping-cart options to begin a purchase or rental, or contact the seller to ask a question or propose a price. Registration and sign-in are available on the site, and help, contact details and online chat are provided through its support section. SITE.su presents domain acquisition as a flexible option for establishing an online presence.