SITE.su is an online marketplace for buying and renting domain names, with a catalogue focused on the .ru, .su and .рф zones. The site lists around 40,000 domains, including keyword-based names and options related to particular search terms. Customers can browse the full catalogue, use advanced search, or download a domain list in Excel format. Listings include purchase and monthly rental prices, and some provide information such as domain age and search-related statistics.

The marketplace offers two ways to secure a domain. Buyers can complete an online purchase, with the domain transferred immediately, while renters can use a domain by assigning their own DNS servers. Rental agreements include a guaranteed right to buy the domain, according to the site. Customers can also contact the marketplace to ask questions about a listing or propose a price. Help, contact details and online chat are available through the site’s support section. SITE.su presents its service as a way for businesses and personal projects to find and obtain domain names suited to their online presence.