SITE.su is an online marketplace specializing in premium domain names, including keyword-rich domains and websites in the .ru, .su, and .рф zones. The site lists more than 40,000 domains and supports both immediate purchase and monthly rental, with rental agreements providing a priority option to buy at a price fixed in the contract. Purchased domains are transferred online, while rentals are set up by assigning the customer’s DNS servers.

Visitors can browse the full inventory, download a domain list in Excel, or use advanced search to find names by keywords and other criteria. Listings include purchase and rental prices, and some provide details such as domain age and search metrics. Customers can submit questions or propose a price through the site, with support and online chat available in the Help section. The marketplace offers an online account and checkout process for buying or renting domains. Its catalog includes names suited to a range of topics, including cooking, and presents kulinars.ru alongside related alternatives.