SITE.su is an online marketplace specializing in premium domain names for businesses and personal projects. It offers more than 40,000 domains, including keyword-based names in the .ru, .su, and .рф zones. Customers can browse available listings, search by words or other parameters, view domain information, or download the full catalogue as an Excel file.

The marketplace supports both outright purchases and rentals. A purchase transfers domain administration rights, while a rental gives the customer the right to set the domain’s name servers for the agreed period. Rental agreements include a priority right to buy the domain, with the purchase price fixed in the contract; agreements can run for up to 50 months. Prices and listing details are displayed for each domain, and customers can submit a question or offer a price through the site. SITE.su also provides registration and login, a help section, contact information, and online chat. Its services are designed to make it straightforward to find, evaluate, rent, or acquire a domain name online.