SITE.su is an online marketplace specializing in premium domain names and keyword-focused web addresses. Its catalog features more than 40,000 domains across the .ru, .su, and .рф zones, with tools to search by words or other criteria, browse the full inventory, and download domain listings in Excel format.

Customers can purchase a domain online or rent one by assigning their own DNS servers. Purchases include an immediate transfer of domain administration rights. Rental agreements are offered by the month and include a priority right to buy the domain during the rental term, with the purchase price specified in the contract. Agreements can last for up to 50 months.

The site displays domain details such as purchase and rental prices, registration age, and SEO-related indicators. It also provides articles and reviews, a help section, and contact options, including online chat and a form for asking questions or making an offer. SITE.su serves individuals and businesses seeking a domain for a website or online project, with both short-term rental and acquisition options.