SITE.su is an online marketplace specializing in premium domain names, including keyword-focused domains and websites in the .ru, .su and .рф zones. The service offers a catalog of roughly 40,000 domain names for businesses and individuals seeking a memorable web address. Customers can browse the full catalog, search by one or more words or themes, and use advanced search options to find suitable names. Listings provide details such as purchase and monthly rental prices, domain age and SEO-related indicators.

Domains can be purchased online, with administration rights transferred immediately, or rented by assigning the customer’s DNS servers. Rental agreements include a priority right to buy the domain during the rental period, with the buyout price fixed in the contract; agreements may run for up to 50 months. The site also provides downloadable domain lists, including spreadsheet exports, and offers a help section with contact information and online chat. SITE.su is designed to make finding, evaluating and acquiring domain names straightforward.