SITE.su is an online marketplace for premium domain names, offering more than 40,000 domains for sale or rent in the .ru, .su, and .рф zones. The service is designed for businesses and individuals seeking a web address for a website, brand, or personal project. Customers can purchase a domain online with immediate transfer or rent it by assigning their own DNS servers. Rental options include a guaranteed right to buy the domain.

The marketplace provides tools to browse the full domain inventory, download a list for review, and search by keywords or other parameters. Listings show purchase and monthly rental prices, and may include domain age and ranking information. Customers can add a domain to a purchase or rental cart, submit a question, or propose a price through the site. Registration and account access are available online, while contact details and live chat are provided in the Help section. The novela.ru page illustrates the service with pricing and related domain suggestions, helping visitors compare options before deciding.