The highest-priced domain name ever publicly recorded is Cars.com, which commanded an astronomical valuation of $872 million as part of a massive corporate transaction. Other ultra-expensive domain acquisitions include high-profile digital assets like Business.com ($345 million), LasVegas.com ($90 million), and the AI.com domain which traded hands for roughly $70 million, reflecting the immense brand value and traffic-driving power of prime digital real estate.