SITE.su is an online marketplace specializing in premium domain names, with a catalog of more than 40,000 domains across the .ru, .su, and .рф zones. Customers can browse keyword-based names and related domains, using search tools to find options by word, topic, or other criteria. Each listing presents purchase and rental prices, and many include information such as domain age and search metrics.

The marketplace offers two ways to secure a domain: buy it online with immediate transfer, or rent it by assigning the customer’s DNS servers. Rental agreements may include a guaranteed right to purchase the domain later. Shoppers can add domains to a cart for instant purchase or rental, review the full catalog, and download domain listings in Excel format. For those seeking a different price, the site provides a way to ask a question or submit an offer on an individual name. Help, contact details, and online chat are available through the site’s support section.