SITE.su is an online marketplace specializing in premium domain names for businesses, organizations, and personal projects. Its catalog features more than 40,000 domains, including keyword-based names and websites in the .ru, .su, and .рф zones. Customers can purchase a domain or rent it, with options and prices displayed alongside listings to help them compare available names. The marketplace promotes instant online purchases with immediate domain transfer, while rentals are arranged by assigning the customer’s DNS servers. Some rental offers include a guaranteed right to buy the domain later.

Visitors can search by one or more words, browse domains with matching or related spellings, and use advanced search options to refine results. SITE.su also provides a complete domain list for viewing or download as an Excel file, with listing details that may include age and search statistics. Customers who want to negotiate can submit a question or price offer for a specific domain. Help, contact information, and online chat are available through the site’s support section.