SITE.SU is an online marketplace specializing in premium domain names for businesses, projects, and individuals seeking a distinctive web address. Its catalog includes more than 39,000 domains, with listings across the .ru, .su, and .рф extensions. Customers can browse available names, search by keywords or other parameters, and review related options such as transliterations, synonyms, and translated terms.

The marketplace offers two ways to secure a domain: immediate online purchase, with the domain transferred to the buyer, or rental, arranged by assigning the customer’s DNS servers. Rental is also available with a guaranteed right to purchase. Listings show purchase and monthly rental prices, and some include information such as domain age and search statistics to help visitors compare options.

SITE.SU provides tools to view or download the full domain catalog, including a spreadsheet option, and invites customers to ask questions or propose a price for a specific name. Help resources, contact information, and online chat are available through its support section.