SITE.su is an online marketplace specializing in premium domain names, including keyword domains and websites in the .ru, .su, and .рф zones. The store offers a catalog of more than 40,000 domains, with options to purchase a domain outright or rent it. Buyers can complete purchases online, with instant domain transfer, while rentals are arranged by assigning the customer’s DNS servers. The marketplace also offers rental agreements with a guaranteed right to buy the domain.

Visitors can search the catalog by keyword or use advanced search options, browse related names such as synonyms, translations, and transliterations, and view domain details including price, age, and selected traffic or search indicators. Full domain lists can be viewed online or downloaded as an Excel file. Customers who want to negotiate or make a different offer can contact the store through its inquiry form; help and online chat are available in the Help section. SITE.su serves businesses and individuals seeking a web address for an online brand, website, or personal project.