SITE.su is an online marketplace for premium domain names, offering a broad selection of domains in the .ru, .su, and .рф zones. The store presents more than 39,000 domains, including keyword-based names, and lets customers browse available listings, search by terms or other criteria, view a complete domain list, or download listings in Excel.

Customers can purchase domains online, with administration rights transferred immediately, or rent them on a monthly basis by assigning their own DNS servers. Rental agreements include a priority right to buy the domain during the rental period, with the purchase price fixed in the agreement; contracts can last up to 50 months. Listings show purchase and rental prices, domain age, and SEO-related indicators based on search data.

SITE.su also provides a help section, online chat, and a contact form for questions or price offers. The marketplace is designed to make domain acquisition flexible, whether customers want to secure a name outright or use it through a rental arrangement before buying.