SITE.su is an online marketplace for premium domain names, offering a catalogue of more than 40,000 domains, primarily in the .ru, .su and .рф zones. The service helps businesses and personal projects find keyword-based domain names and provides options to purchase or rent them online.

Purchases are described as online transactions with immediate transfer of domain administration rights. Rental is available by assigning the customer’s DNS servers, with monthly pricing and a contract that gives the renter priority rights to buy the domain during the rental term. The purchase price can be fixed in that agreement, and rental contracts may last up to 50 months.

Customers can browse the full domain list, download catalogue data in Excel, and use advanced search to find names by selected criteria. Listings show purchase and rental prices, domain age, and indicators intended to reflect SEO appeal. For questions or price offers, customers can contact the marketplace through its help section or online chat.