SITE.su is an online marketplace specializing in premium domain names, with tens of thousands of listings across the .ru, .su, and .рф zones. The service helps businesses and individuals find keyword-based domain names for websites, brands, and online projects, with search tools for exploring available options and related terms.

Customers can purchase domains online, with ownership administration transferred immediately, or rent a domain by arranging the use of their own DNS servers. Rental agreements include priority rights to buy the domain during the rental period, with the purchase price fixed in the contract. Rentals are available for up to 50 months and are priced by the calendar month.

The marketplace provides searchable listings, an expanded search function, and downloadable domain catalogs, including spreadsheet exports with metrics. Buyers can also contact the store to ask questions or propose a price. SITE.su presents domain details such as age and search-related indicators to help customers compare options and choose a name suited to their needs.