SITE.su is an online marketplace specializing in premium domain names, with a catalogue of more than 40,000 domains in the .ru, .su and .рф zones. The service helps businesses, entrepreneurs and project owners find names suited to their brand, topic or target keywords. Visitors can browse the full catalogue, download a domain list, or use advanced search to discover exact matches, translations, transliterations and related terms.

SITE.su offers both outright purchases and domain rentals. Purchases can be completed online, with immediate domain transfer, while rental is arranged by assigning the customer’s DNS servers. The marketplace also offers rental with a guaranteed right to buy, and customers can ask questions or submit a price offer for a specific domain. Listings display purchase and monthly rental prices, alongside available information such as domain age, ratings and search statistics. The site provides account registration and login, a help section, and online chat for assistance.