A returning user experience (RUX) enhances a website or app by providing a personalized, seamless experience to users when they revisit, improving engagement and reducing friction. Unlike basic personalization, RUX retains and utilizes past interactions to tailor the experience, whether by remembering a user's preferences, restoring their cart, or picking up where they left off in a session. Techniques for recognizing returning users include cookies, local storage, and device fingerprinting, with the latter offering a more stable and long-term solution. Fingerprint, a device intelligence platform, excels at identifying returning visitors using over 100 browser and device signals, allowing businesses to offer smooth, customized experiences while maintaining user privacy. Effective RUX not only boosts user satisfaction and conversion rates but also aids in detecting fraudulent activities by recognizing suspicious return patterns.