SITE.su is an online marketplace specializing in premium domain names, with approximately 40,000 listings across the .ru, .su, and .рф zones. The service helps businesses and individuals find memorable, keyword-focused domains for websites and online projects. Visitors can browse available names, search by keyword or other parameters, review related suggestions, and download the full domain catalogue in Excel format.

Customers can purchase a domain online for immediate transfer or rent one by assigning their own DNS servers. Rental options include a guaranteed right to buy, giving customers a path from temporary use to ownership. Listings display purchase and monthly rental prices, with additional information such as domain age and selected traffic or search indicators where available. Buyers may also contact the marketplace to ask questions or propose a price, and support is available through the Help section and online chat. SITE.su presents its inventory as a broad selection of premium names and offers tools designed to make comparing, selecting, and securing a domain straightforward.