SITE.su is an online marketplace specializing in premium domain names, with a catalog of tens of thousands of options across the .ru, .su and .рф zones. The service helps businesses and individuals find domain names for websites, brands and other online projects, with search tools for matching words and themes and an extended search for browsing by parameters. Visitors can view the full domain list or download a spreadsheet to compare available names and listed information.

Domains are available for immediate purchase or monthly rental. According to the site, online purchases include instant domain transfer, while rental is arranged by assigning the customer’s DNS servers. Some rental arrangements include a guaranteed right to buy the domain. Customers can also contact the marketplace to ask questions about a specific name or propose a price. The site provides account registration and sign-in, along with a Help section offering contact information and online chat. Overall, SITE.su combines domain discovery, listing information and flexible purchase or rental options in one storefront.