In order to analyze user access and optimize advertising distribution, SENSAI Cosmetics Inc. have acquired statistical website usage information through cookies or web beacons operated by 3rd party service providers (*1) and also distributed advertising via 3rd party service provider on their websites. The cookie information used for access analysis or advertising distribution by 3rd party service providers cannot be used to distinguish an individual. SENSAI Cosmetics Inc. in conjunction with 3rd party service providers have optimized and distributed advertising (ex. retargeting advertising and behavior targeting advertising) based on the customer’s previous access to SENSAI website or other website with a combination of 1st party cookie (ex. Google Analytics Cookie) and 3rd party cookie (ex. DoubleClick Cookie).