SITE.su is an online marketplace specializing in premium domain names and keyword-based web addresses. Its listings cover the .ru, .su, and .рф domain zones, with tens of thousands of names available for businesses and other projects. Customers can buy a domain online for immediate transfer of administrative rights or rent it by directing the domain to their own DNS servers. Rental agreements include a priority right to purchase the name during the rental period, with the buyout price fixed in the contract; rental terms can last up to 50 months.

The marketplace offers tools to browse or search its inventory, including advanced search, full-list viewing, and downloadable domain data. Listings provide purchase and monthly rental prices, along with domain age and search-related indicators where available. Customers can submit questions or price offers through the site and contact the service through its Help section and online chat. SITE.su presents domain names for a range of possible uses, including the featured копченье.рф address, without limiting its inventory to a particular industry.