SITE.su is an online marketplace specializing in premium domain names, offering more than 39,000 domains across the .ru, .su, and .рф extensions. The service helps businesses and individuals find memorable, keyword-focused names for websites and online projects. Customers can browse available listings, search by words or other criteria, view a full domain catalogue, and download listings in Excel format.

Domains are available for immediate purchase or monthly rental. Purchases are completed online with immediate domain transfer, while rental is arranged by assigning the customer’s DNS servers. Some rental offers include a guaranteed right to buy the domain later. Buyers can also contact the marketplace to ask questions or propose a price, and support is available through the Help section and online chat.

Listings include prices and may show additional information such as domain age, ratings, and search statistics. The catalogue spans a broad range of names, from Russian-language domains to Latin-script options, giving customers different choices for building an online presence.