SITE.su is an online marketplace specializing in premium domain names. It offers more than 40,000 domains, including keyword-based names in the .ru, .su, and .рф zones, for purchase or rental. Customers can browse listings, search by terms or other parameters, view domain details, and download a full inventory in Excel. Listings may include pricing, registration age, and a rating based on search-related indicators.

The marketplace supports immediate online purchases, with domain administration rights transferred after purchase. Its rental service allows customers to use a domain by assigning their own DNS servers. Rental agreements can include a priority right to buy the domain, with the purchase price fixed in the contract; agreements may last up to 50 months. The site also provides a contact form for questions or price offers, along with help and online chat. SITE.su serves businesses and individuals seeking a memorable domain for an online presence, offering flexible ways to secure names for websites and projects.