How to Build a Data Layer That Powers All Your Analytics Tools
A well-structured data layer is the foundation of accurate analytics. Here's how to design and implement one that scales.
A data layer is a JavaScript object on your website that standardizes data in a format all analytics tools can read. Without one, every tool gets its own implementation, creating inconsistencies and maintenance nightmares.
The data layer should contain four categories of information: page data (type, title, category), user data (login state, plan tier, account attributes), event data (actions taken, timestamps, properties), and e-commerce data (products viewed, cart contents, transactions).
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We provide the data layer schema for B2B SaaS websites, the Google Tag Manager configuration that reads from the data layer, and the QA process that validates data accuracy. Plus, the organizational benefits: when your data layer is correct, adding or changing analytics tools requires configuration changes, not code changes.
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