SITE.su is an online marketplace specializing in premium domain names, with a catalog of more than 39,000 listings across the .ru, .su, and .рф extensions. The service helps individuals and businesses find domain names suited to their projects, including keyword-based names and options related by meaning, translation, or transliteration. Visitors can search by one or more terms, use advanced search filters, browse the full catalog, or download a domain list with available metrics.

Domains can be purchased online with immediate transfer or rented by assigning the customer’s DNS servers. Rental listings include an option with a guaranteed right to buy, and customers can contact the marketplace to ask questions or propose a price. Listings show purchase and monthly rental prices, with details such as age and ratings available for some names. The site also provides account access, a help section, and online chat for customer support. SITE.su positions its marketplace as a practical resource for securing memorable web addresses for personal or commercial websites.