A small code snippet that records when a user visits a page or completes an action, used for retargeting and measurement.
A tracking pixel is a small piece of code (often a 1x1 image request or script) that signals when a page is viewed or an event happens. Pixels are used for conversion tracking, remarketing, and attribution - but modern privacy rules mean you must implement them with consent, data minimisation, and clear governance.
The best setups use a data layer, consent-aware tagging, and server-side signals where appropriate to reduce loss from browser restrictions.
Browse related definitions in the same glossary category.
Acquisition Channel
The source through which users find your website - such as organic search, paid search, social media, or referrals.
Acquisition Cost (CPA)
Cost Per Acquisition - the average amount spent to generate one booking, enquiry or conversion.
Anonymous Traffic
Website visits where user data or referrer information is not available due to privacy settings or tracking restrictions.
Attribution Model
A rule that determines how credit for conversions is assigned to different marketing touchpoints (e.g., first click, last click, data-driven).
Average Position
A metric indicating where a page typically ranks in search results for a given query. Replaced by average ranking in GA4.
Behaviour Flow
A report in analytics tools showing how users navigate between pages and where they drop off.
Understanding "Tracking Pixel" is just the first step. Our team at TwoSquares specializes in technical SEO and digital strategy, helping brands turn complex concepts into measurable growth.