SITE.su is an online marketplace for premium domain names, offering a large selection of keyword-focused domains in the .ru, .su and .рф zones. The service helps businesses and individuals find web addresses for online projects, with listings that can be searched by terms or other parameters. Customers can buy domains online, with transfer of administration rights, or rent them by the month. Rental agreements include a stated priority right to purchase the domain during the agreement and a fixed purchase price; the maximum agreement term is 50 months. Renting gives customers the right to change the domain’s name server settings.

SITE.su provides tools to browse, view or download its domain listings, including a spreadsheet option, and displays details such as purchase and rental prices, domain age and search-related indicators where available. Customers can contact the marketplace with questions or offers, and support is available through its Help section and online chat. The service is designed to make acquiring or using a domain straightforward, whether customers prefer immediate purchase or rental.