SITE.su is an online marketplace specializing in premium domain names, with a catalog of more than 39,000 options across the .ru, .su, and .рф zones. The service helps businesses and individuals find domain names for websites and online projects, including keyword-based names, and offers both immediate purchases and rentals.

When a customer buys a domain, its administrative rights are transferred online. Rental gives the customer the right to use the domain by setting their own name servers. Rental agreements include priority rights to purchase the domain during the contract and specify a fixed buyout price; agreements can run for up to 50 months.

Customers can browse the full domain list, download a spreadsheet, or use advanced search to explore available names and pricing. The marketplace also provides domain details such as age and search-related indicators. Visitors can contact the team through the Help section’s online chat or ask about a specific domain and propose a price.