SITE.su is an online marketplace specializing in premium domain names, including keyword-focused domains and websites in the .ru, .su, and .рф zones. The store lists more than 39,000 domains, giving individuals and businesses a broad selection of web addresses for projects and online services.

Customers can purchase domains online, with administration rights transferred after purchase, or rent a domain by assigning their own DNS servers. Rental agreements include a priority right to buy the domain during the rental period, with the purchase price set in the contract. Rental is priced by calendar month, and agreements can run for up to 50 months.

To help customers find a suitable name, SITE.su offers keyword search, advanced search options, and downloadable domain lists in Excel format. Listings provide details such as purchase and rental prices, domain age, and indicators related to search interest and SEO attractiveness. Prospective buyers and renters can submit questions or offers, while the Help section provides access to contact information and online chat.