SITE.su is an online marketplace specializing in premium domain names, with more than 40,000 domains listed across the .ru, .su, and .рф zones. The service helps individuals and businesses find keyword-based domain names for new projects or existing websites, offering options to buy or rent online.

Purchases are completed instantly, with the domain’s administration rights transferred to the buyer. Rental is arranged by assigning the customer’s DNS servers, and agreements include a priority right to buy the domain during the rental period, with the purchase price fixed in the contract. Rentals are priced by calendar month and may run for up to 50 months.

Customers can browse the full domain inventory, download a spreadsheet, or use advanced search to explore names by keyword and other parameters. Listings may include details such as asking prices, domain age, and search-related indicators. SITE.su also provides a way to ask questions or make an offer, with contact information and online chat available through its Help section.