A pixel is a small piece of code placed on a web page to track user behavior, such as page views, conversions, and purchases. Pixels enable advertisers to build remarketing lists, optimize campaigns, and measure ROI with precision. Common platforms like Meta Pixel or Google Ads tag use pixel tracking to gather actionable insights and feed conversion data back into bidding algorithms.
Frequently Asked Questions
Can I use one pixel for multiple campaigns?
Yes, most platforms let you organize events and audiences under a single pixel.
Are pixels affected by browser privacy settings?
Safari’s ITP and Firefox’s ETP limit pixel tracking significantly.
How do pixels help improve ad ROI?
They feed conversion data into algorithms for better optimization and retargeting.
Is server-side pixel tracking better?
Yes, it offers better reliability and privacy compliance, especially on iOS and restricted browsers.
