Tracking Pixels
Tiny invisible images or code snippets embedded in web pages or emails to monitor user behavior and collect analytics data.
Tracking pixels (also called web beacons, pixel tags, or clear GIFs) are typically 1x1 pixel transparent images or JavaScript snippets embedded in web pages or emails. When a page loads or an email is opened, the pixel sends a request to the tracking server, recording information such as the user’s IP address, browser type, screen resolution, time of access, and which page was viewed. In emails, they reveal whether a message was opened and when.
From a privacy compliance perspective, tracking pixels raise significant concerns because they operate invisibly and can collect personal data without the user’s awareness. Under the GDPR, pixels that process personal data require a legal basis, typically consent. The ePrivacy Directive treats pixels similarly to cookies when they access information stored on the user’s device. Many privacy-focused email clients and browsers now block tracking pixels by default, and organizations must disclose their use in privacy notices.