SITE.su is an online marketplace specializing in premium domain names, with listings across the .ru, .su, and .рф extensions. The store offers a large selection of keyword-based domains and provides two ways to obtain them: immediate purchase or monthly rental. Purchases are completed online, with domain administration rights transferred to the buyer. Rental involves assigning the customer’s DNS servers and includes a contractual priority right to buy the domain during the rental period, at a price fixed in the agreement. Rental agreements can last up to 50 months.

Customers can search by words or topics, browse related and synonymous domains, and use advanced search tools. The marketplace also offers downloadable domain lists, including spreadsheet exports, and provides a contact form and online chat through its help section. Buyers may ask questions about a specific name or submit an offer. Listings can include details such as price, domain age, and SEO-related ratings. SITE.su presents itself as a practical resource for individuals and businesses seeking a memorable domain for an online project.