SITE.su is an online marketplace for premium domain names, offering a catalogue of more than 40,000 domains across the .ru, .su and .рф zones. The service helps individuals and businesses find keyword-based domain names and provides options to purchase or rent them online. Buyers can browse the full catalogue, download a domain list, or use advanced search to find names by criteria such as wording, transliteration, synonyms and translations. Listings may include information such as price, domain age and search-related indicators.

Purchases are completed online, with the domain’s administrative rights transferred to the buyer. Rental is available by the month and allows the renter to set the domain’s name servers. Rental agreements include a priority right to purchase the domain during the agreement period, with the purchase price fixed in the contract; agreements can last up to 50 months. SITE.su also offers a contact form for questions or price proposals, along with help and online chat. The marketplace presents razvozhu.ru and related delivery-themed names as examples in its catalogue.