SITE.su is an online marketplace specializing in premium domain names, with more than 40,000 domains available across the .ru, .su, and .рф zones. The service helps businesses and individuals find an address for a website, brand, or online project, including keyword-based domains related to topics such as loans and credit. Customers can browse listings, search by words or other parameters, view a full domain catalogue, or download listings in Excel format. Each listing may include purchase and rental prices, domain age, and ranking or search information.

Domains can be purchased online with immediate transfer, or rented by assigning the customer’s DNS servers. The marketplace also offers rental with a guaranteed right to buy, and visitors can contact the seller through an online chat or enquiry form to ask questions or propose a price. A shopping-cart process supports instant purchase or rental, while account access is available for registration and sign-in. SITE.su presents itself as a practical destination for comparing domain options and securing a relevant web address.