Audit Modules
Property Configuration module (30 checks)
The Property Configuration module uses the GA4 Admin API to inspect your property settings directly. It's the fastest module to run and the most foundational — many downstream data quality issues originate from incorrect property configuration.
Measurement IDs and data streams
The module checks that your property has at least one active web data stream with a valid measurement ID. It also verifies that the stream's website URL is populated and correctly formatted — this URL is used by the Tag & Consent module for crawling. Properties with multiple data streams for the same domain are flagged, as this is a common source of duplicate sessions.
Data retention settings
GA4's default data retention period is 2 months. This is almost always too short for meaningful analysis. The module checks that your retention setting is set to at least 14 months. A retention period of 2 months means you lose the ability to compare against prior periods — a serious limitation for any property doing seasonal analysis or year-over-year comparisons.
Google Signals and demographic data
Google Signals enables cross-device tracking and demographic reporting. The module checks whether it's enabled and whether the data threshold (which suppresses data in demographic reports to prevent fingerprinting) is causing reporting gaps. If Signals is enabled but thresholds are suppressing your data, a high-severity finding is raised.
Timezone and currency
An incorrect timezone setting causes session boundaries and date-based metrics to shift by hours relative to your actual business timezone. The module checks that your property timezone matches the expected regional setting. Similarly, currency mismatch between your GA4 property and your e-commerce implementation is flagged as a high-severity issue.
Enhanced measurement and referral exclusions
Enhanced measurement auto-tracks scrolls, outbound clicks, site search, video engagement, and file downloads. The module checks which enhanced measurement features are enabled and flags any that might cause double-counting (for example, manual page_view events combined with enhanced measurement page_view tracking).
Referral exclusion lists are checked for common omissions — most notably, missing payment gateway domains that cause session interruptions and inflate direct traffic.
Linked services
The module checks for the presence and status of key linked services: Google Ads (for conversion import), Search Console (for organic search data), and BigQuery (for raw data export). Missing links that are relevant to your property type are flagged as medium-severity recommendations.
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