SITE.su is an online marketplace for premium domain names, offering a catalog of around 40,000 domains in the .ru, .su, and .рф zones. Customers can browse and search for keyword-focused names, including Cyrillic and transliterated options, and review listed prices and available domain information.

The marketplace provides two ways to secure a domain: immediate purchase, with online transfer of administrative rights, or monthly rental. Rental includes the right to change the domain’s name servers and a priority option to buy the name during the rental term. The purchase price is fixed in the rental agreement, which can last up to 50 months.

SITE.su supports domain discovery with an expanded search, a full catalog listing, and downloadable domain data in Excel. Listings may include age and indicators related to search popularity and SEO attractiveness. Customers can submit questions or price offers through the site, while help, contacts, and online chat are available in the support section.