SITE.su is an online marketplace for premium domain names, offering thousands of keyword-focused domains in the .ru, .su, and .рф extensions. The service enables individuals and businesses to purchase a domain outright or rent it, with options designed to make acquiring a suitable web address straightforward.

Customers can browse the full domain catalogue, download a list for review, or use search tools to find names by keyword, translation, spelling, or related terms. Listings show prices for purchase and monthly rental, along with details such as domain age and search-related indicators. For the featured stereosistemy.ru domain, the site displays both purchase and rental options, and visitors can ask a question or propose a price.

Purchases are completed online with transfer of domain administration rights. Rental involves setting the customer’s name servers and includes a contractual priority right to buy the domain at a fixed price during the rental period. SITE.su also provides account access, customer support, and online chat through its help section.