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Google Tag Manager vs Direct Code
Google Tag Manager vs Direct Code
Updated this week

When you start measuring with SealMetrics, the first step is inserting our pixel into your website. This allows you to begin collecting 100% cookieless data. However, one of the most common questions we receive is: Which method is better, adding the pixel directly into the website's code or using Google Tag Manager (GTM)?

The answer is simple: both methods work, and it all depends on your needs and resources. Below, we'd like to explain the advantages and disadvantages of each option to help you decide.

1. Adding the Pixel Directly into the Website's Code

Advantages:

  • Higher stability: By inserting the pixel directly into the code, you reduce the risk of technical issues related to third-party tags.

  • Faster loading: Avoid potential delays that may occur when relying on GTM.

  • Fewer blockages: Browsers like Brave or tools like ad blockers often block Google Tag Manager, but a pixel inserted directly into the website's code is much less likely to be blocked.

  • Fewer dependencies: There’s no need to rely on external tools like GTM to manage the pixel.

Disadvantages:

  • Requires technical expertise: You’ll need access to your website's source code and possibly the help of a developer to insert it correctly.

  • More complex to manage changes: If you need to update or modify the pixel in the future, you’ll need to access your website's code again.


2. Adding the Pixel via Google Tag Manager (GTM)

Advantages:

  • Easier management: You can add, modify, or remove the pixel without touching your website’s code.

  • Quick implementation: No need to coordinate with a developer; you (or your marketing team) can manage the implementation.

  • Centralized tag management: If you’re already using GTM for other tools like Google Analytics or Facebook Ads, managing all tags in one place simplifies workflows.

Disadvantages:

  • Potential latency: Depending on your GTM setup, there may be a slight delay in the pixel’s execution.

  • Dependency on third parties: If GTM malfunctions or is misconfigured, it could impact data measurement.

  • Higher risk of blockages: Some browsers, like Brave, or privacy-focused tools such as ad blockers, may block GTM entirely, affecting the execution of your pixel. This is especially relevant if your audience frequently uses privacy-focused tools or browsers.


Our Recommendation

Choose the method that best fits your needs:

  • If you have access to technical resources and want maximum stability with a lower risk of blockages, insert the pixel directly into your website’s code.

  • If you prefer a more flexible solution that is easier to manage without technical support, use Google Tag Manager, but keep in mind the potential limitations regarding blockages.

Both methods are equally effective for measuring with Symmetrix. The important thing is to choose the one that aligns with your workflow.


Feel free to reach out through our support team if you have any questions or need assistance with the implementation. We’re here to help!

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