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Testing GTM Data Layer Loading with Cypress.io

The Data Layer is a critical component of a strong GTM implementation but how do we know that it's behaving correctly? What if we redesign our site or try to implement the same Data Layer across multiple sites?

In this blog post, I'll show you how to use Cypress.io to gain confidence in the state of your Data Layer by testing the initial seeding of data from your backend systems.

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