SITE.su is an online marketplace for premium domain names, offering more than 40,000 domains, primarily in the .ru, .su, and .рф extensions. Customers can browse keyword-based domain names, search by terms or filters, and review related alternatives, including synonyms, translations, and transliterations. Listings include purchase and monthly rental prices, with some entries also displaying domain age and available audience or search metrics.

The marketplace supports two ways to obtain a domain: an online purchase with immediate transfer, or rental by assigning the customer’s DNS servers. Rental options are described as including a guaranteed right to buy the domain later. Buyers can complete eligible transactions through the site’s shopping-cart process, while those seeking different terms can submit a question or price offer. The website also provides a full domain list for viewing or download, including a spreadsheet option, and offers help, contact information, and online chat. SITE.su serves individuals and businesses looking for an online address for a website, project, or commercial presence, with domain options such as poyavlenie.ru presented in its catalogue.