A pixel in digital marketing refers to a small piece of code placed on a website or within an email. This code collects data on user behavior, such as how users interact with the website or email content. Marketers use pixels to track conversions, retarget potential customers, and gather detailed insights to enhance advertising strategies and campaign effectiveness. The term is derived from “picture element,” the smallest unit of a digital image, highlighting its foundational role in digital display systems.

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