SITE.sU is an online marketplace specializing in premium domain names, with a catalogue of more than 40,000 domains, primarily in the .ru, .su and .рф zones. The service enables customers to browse, search and acquire domain names for businesses, websites and other online projects. Buyers can purchase domains online with immediate transfer, or rent them by assigning their own DNS servers. Rental agreements may include a guaranteed right to buy the domain later.

The marketplace offers tools to search by keyword or multiple topics, filter listings using advanced search, and view a complete domain catalogue. Customers can also download domain lists in Excel format, including details such as age and available ratings. Listings display purchase and monthly rental prices, and some provide information on search statistics and domain history.

For customers interested in negotiating, SITE.sU provides a way to ask questions or submit an offer on a specific domain. Help, contact information and online chat are available through the site’s support section.