SITE.su is an online marketplace for domain names, offering a searchable catalogue of more than 40,000 domains in the .ru, .su and .рф zones. The store enables customers to browse keyword-based names, use advanced search tools, view a complete domain list or download catalogue data in Excel format. Listings include details such as purchase and rental prices, domain age and selected rating or search statistics.

Customers can buy domains online with immediate transfer or rent them by assigning their own DNS servers. Rental options may include a guaranteed right to purchase the domain later. The marketplace also provides a way to ask questions about a specific name or submit a price offer, with contacts and online chat available in the Help section. Visitors can search for domains by words or topics, including names with transliterations, and use the on-site account functions to register or sign in. SITE.su presents itself as a convenient destination for individuals and businesses seeking domain names through either purchase or rental.