SITE.su is an online marketplace specializing in premium domain names, with a catalog of more than 40,000 options in the .ru, .su, and .рф zones. The service helps businesses and individuals find domain names for websites, brands, and other online projects, offering both outright purchase and rental. Buyers can complete purchases online, with domain administration rights transferred immediately. Rental provides access to a domain through the renter’s DNS servers and includes a contractual priority right to buy it during the rental period; the purchase price is fixed in the agreement.

The marketplace supports browsing by keyword and offers advanced search, related-name suggestions, and listings with details such as prices, age, and available statistics. Visitors can view or download the full domain catalog, including an Excel export, and can submit an offer or ask a question about a specific name. Help, contact information, and online chat are available through the site. SITE.su presents domain acquisition and rental as flexible ways to secure a suitable web address.