SITE.su is an online marketplace for premium domain names, offering a catalogue of more than 40,000 domains, including keyword-based names in the .ru, .su and .рф zones. Customers can browse listings, search by terms or other parameters, and review available purchase and rental prices. The service supports both immediate online purchases, with the domain transferred to the buyer, and rentals, arranged by assigning the customer’s DNS servers. Some rental listings include a guaranteed right to buy the domain later.

The marketplace provides tools to view or download the full domain list, including spreadsheet exports, and displays listing information such as age and ratings where available. Customers can contact the site through its help section and online chat, ask questions about a specific domain, or submit a price offer. The site also offers account registration and sign-in for users who want to manage their transactions. SITE.su is designed to help individuals and businesses find a domain name for a website, online project, or brand, with options to rent or purchase according to their needs.