SITE.su is an online marketplace for premium domain names, offering a catalog of more than 40,000 domains across the .ru, .su and .рф zones. Its service is designed for businesses, project owners and individuals seeking a distinctive web address, with domains available for immediate purchase or rental.

Customers can browse the full catalog, search by keywords or use advanced search options to find names by parameters, translations, synonyms and transliterations. Listings display purchase and monthly rental prices, and may include domain age and search-related indicators. Buyers can complete purchases online, with domain administration rights transferred immediately. Rental gives customers the ability to assign their own DNS servers and includes a contractual priority right to buy the domain during the rental period, at a price fixed in the agreement.

The website also provides downloadable domain lists, help resources, an online chat and a contact form for questions or price offers. SITE.su presents domain names as flexible options for establishing or developing an online presence, with both short-term rental and ownership available.