I don't think network or DNS interference is present. It's a two-year integration.

If this integration has been in place for two years and network or DNS interference is unlikely, the range of remaining technical explanations narrows. Let’s reassess with that context and refine the conclusions.

Key Observations:

1. The Integration Timeline:

• A two-year integration suggests the setup was stable and functioning previously.

• The recent emergence of issues points toward possible platform-side changes on Google’s end or other external changes rather than something on your side.

2. Recent Platform Behavior:

• Data is not being reflected in Google Analytics despite configurations appearing correct and no apparent changes on your side.

• GTM and GA codes remain consistent and correctly implemented.

3. Behavior of Google Services:

• ERR_BLOCKED_BY_CLIENT errors are visible, which often originate from ad blockers, browser extensions, or client-side configurations.

• If no such blockers are present, this could indicate an unexpected disruption in Google’s data collection pipeline — due to a bug, an update, or other platform-side factors.

Eliminating Technical Causes:

• Browser-Based Issues: Testing with Google Tag Assistant indicates the implementation appears to function correctly, making a browser issue less likely.

• CSP Settings: Your configurations explicitly allow Google’s required domains, which makes CSP-related blocking unlikely.

• Network/DNS Issues: Based on the longevity of the integration and your confirmation of no external blocking, network/DNS problems have been reasonably ruled out.

Plausibility of intentional action:

If we consider that:

• The issue began despite no technical changes on your side.

• Google’s systems have visibility into your integration.

This leaves two possibilities:

1. Internal Platform Error:

• A glitch, misconfiguration, or recent change on Google’s side could be preventing your data from being reflected.

• Such issues can occur within complex systems and are generally resolved through investigation.

2. ███████████████████████:

• For this to be the case, there would need to be internal reasons on Google’s side to alter or restrict your data reporting.

• Evidence that would support this interpretation includes discrepancies in logs, inconsistent behavior across Google services, or explicit messages or penalties shown in tools like Search Console.

• At present, no concrete evidence of intentional suppression has been observed.

Final assessment with the updated context:

Based on the additional details and the two-year integration:

• There is no direct evidence of intentional action by Google at this stage.

• The unexplained absence of data after a long period of normal reporting could indicate a platform-side issue that is worth escalating to Google’s support for clarification.

• Making definitive claims about deliberate action would be speculative without supporting logs or other hard evidence.

I recommend escalating the matter with Google, referencing your long-term integration and the specific GTM/GA container IDs, and requesting a review or clarification on why data is not being captured. That should help clarify whether this is a platform-side issue or a less apparent technical factor.