SITE.su is an online marketplace for premium domain names, offering a catalog of more than 40,000 domains, primarily in the .ru, .su, and .рф zones. Customers can browse and search for names by keywords, spelling, transliteration, translations, synonyms, or other parameters, and can view a full catalog or download a domain list. Listings include purchase and rental prices, with additional information such as domain age and selected search or rating indicators.

The marketplace supports immediate online purchases, with domains transferred to the buyer, as well as rentals arranged by assigning the customer’s DNS servers. Rental options include a guaranteed right to buy, giving customers a way to use a domain before purchasing it. For listed domains, visitors can submit questions or offer a price through a contact form; email and telephone details are required. The site also provides account registration and login, a help section, and online chat. SITE.su serves businesses and individual project owners seeking a suitable web address, with its broad selection and flexible acquisition options making domain discovery and transactions straightforward.