SITE.su is an online marketplace specializing in premium domain names, with more than 40,000 domains offered across the .ru, .su, and .рф zones. The service enables customers to browse available names, search by keywords or other parameters, and review listings with details such as price, age, and ratings. Domains can be purchased online for immediate transfer or rented by assigning the customer’s DNS servers. Rental listings include an option to secure the right to buy the domain, and customers can contact the marketplace to ask questions or propose a price.

SITE.su also provides tools for exploring its inventory, including a complete domain list, an Excel download, and an extended search. Its catalogue features names related to a wide range of words and topics, with separate results for matching names, synonyms, and translations. Buyers can complete transactions through the site, while account access and help resources support the process. The marketplace serves businesses and individuals seeking a suitable domain for a website or online project.