SITE.su is an online marketplace specializing in premium domain names, with more than 39,000 listings across the .ru, .su and .рф domain zones. It serves businesses and individuals seeking a distinctive web address for a website, brand or online project. Customers can browse domains by keyword, explore translated and transliterated alternatives, or use advanced search to find names that match their needs. Listings include purchase and monthly rental prices, with information such as domain age and available search statistics shown for some names.

The marketplace offers two ways to secure a domain: online purchase with immediate transfer, or rental by assigning the customer’s DNS servers. Some rental arrangements include a guaranteed right to buy the domain later. Customers can purchase or rent directly through the site, submit a question or price proposal, and contact the team through the help section and online chat. SITE.su also provides access to a complete domain list, including a downloadable spreadsheet, helping users compare options and identify a suitable name.