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. The service helps businesses, entrepreneurs, and project owners find memorable, keyword-focused names for their online presence. Customers can purchase a domain or rent it, with listings displaying prices and information such as domain age and search-related indicators.

Purchases are completed online, with domain administration rights transferred to the buyer. Rental gives customers the right to change the domain’s name server settings. The rental agreement includes a priority right to buy the domain during the rental period, with the purchase price fixed in the contract; rental terms can last up to 50 months. SITE.su offers instant purchase and rental options, an expanded search by parameters, and full catalog downloads in spreadsheet format. Visitors can contact the marketplace through its help section and online chat, or send a question or price offer about a specific domain.