Tracking Pixel
A tracking pixel is a small snippet of code placed on your website that reports visitor actions back to an ad platform — page views, add-to-carts, purchases — so it can measure conversions and optimize delivery.
Also called: Ad pixelAlso called: Marketing pixelFormula
Pixel = site code that sends events to an ad platformExample
The Meta Pixel on a checkout page fires a 'Purchase' event with the order value, letting Meta attribute and optimize toward sales.
Why it matters
Pixels are the data feed that powers conversion optimization, retargeting audiences and ROAS reporting. As cookies decline, many advertisers pair the pixel with server-side events for reliability.
Put these metrics to work
AdPlus plans, launches, and optimizes campaigns across 12 ad networks from one screen — and tracks every metric here for you. Free to start, no card.
FAQ
Is a pixel the same as a cookie?
No — a pixel is code that fires events; it may rely on cookies to identify users. Privacy changes limit cookies, which is why server-side tracking is growing.
How many pixels can I run?
You can run several (one per platform), but each adds page weight and privacy considerations — load them efficiently and honor consent.