Google Tag Manager
Tag management system that loads other scripts. a.run.app is Google Cloud Run, used for server-side GTM containers.
GTM itself doesn't track, but it can inject many third-party tags.
Detected by domain patterns
googletagmanager.coma.run.appEuropean alternatives
GDPR & Data Residency
Google Tag Manager is owned by a US company. Under GDPR Chapter V, transferring personal data to the US requires an appropriate safeguard (typically Standard Contractual Clauses or adequacy decisions. The 2020 Schrems II ruling invalidated Privacy Shield and increased scrutiny on US data transfers, requiring case-by-case Transfer Impact Assessments (TIAs).
If your website loads Google Tag Manager scripts or sends user data to their servers, your users' data may be processed in the United States. Review Google Tag Manager's DPA (Data Processing Agreement) and ensure it covers SCCs.
Tip: Consider replacing Google Tag Manager with one of the EU-based alternatives listed above to simplify GDPR compliance and remove cross-border transfer obligations.
Does your website use Google Tag Manager?
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