SITE.su is an online marketplace specializing in premium domain names, with a catalogue of more than 40,000 options in the .ru, .su and .рф zones. The service helps businesses and individuals find an address for a website or project, offering domains for both purchase and rental. Buyers can complete a purchase online, with the domain’s administration rights transferred to them. Rental is arranged by assigning the customer’s DNS servers, and the rental agreement includes priority rights to buy the domain at a price fixed in the contract. Rental periods are charged monthly, and agreements can run for up to 50 months.

Customers can search by keywords or use advanced search options, review matching domains and related listings, and view details such as price, age and search-related indicators. SITE.su also provides downloadable domain lists, including spreadsheet exports, and offers a contact form and online chat through its Help section. The marketplace combines browsing, pricing information and transaction options in one place for people seeking an existing domain name.