SITE.su is an online marketplace specializing in premium domain names, offering more than 40,000 options in the .ru, .su, and .рф zones. Customers can browse keyword-focused domains, search by terms or other criteria, and review details such as age and SEO-related indicators. The service supports both outright purchases and rentals, making it useful for businesses and individuals seeking a web address suited to their identity or market.

Purchases are completed online with immediate transfer of domain administration rights. Rental is offered by the month and works through assigning the customer’s DNS servers; agreements include a priority right to buy the domain at a price fixed in the contract. Rental contracts can run for up to 50 months. The marketplace provides domain lists for viewing or download, tools for comparing available names, and a contact form for questions or price offers. Customers can also reach the service through its help section and online chat.