Cookies play a crucial role in digital analytics by tracking user behavior on websites. Common cookies like tuuid, tuuidlastupdate, um, and umeh collect data on site visits, including frequency, duration, and specific pages accessed. Cookies such as nascx are used by social sharing platforms to record visited sections and recommend related content. APID and IDSYNC gather anonymous user visit data to inform marketing strategies. Demographic and geographical data are collected by cookies like ccaud, cccc, ccdc, and ccid to create targeted advertising campaigns. The dpm cookie links user navigation with offline survey data for targeted ads. Unique identifiers such as acs, clid, KRTBCOOKIE_#, PUBMDCID, and PugT help identify users across visits for targeted advertising. Security-focused cookies like SIDCC protect user data, while Google’s reCAPTCHA measures user interactions. Cookies like utmx and utmxx are used in A/B testing to optimize website performance and user satisfaction.