How to Install Google Tag Manager Server-Side with Google Cloud: Step-by-Step Tutorial

Frequently Asked Questions
Common questions about "Install Google Tag Manager Server Side with Google Cloud"
You need GTM admin access at the account level, a Google Cloud billing account with a credit card, a GA4 property, and access to your DNS manager records. These are essential for creating the server-side container and configuring the necessary integrations.
After creating your server-side container, go to Integrations, add a custom domain, then copy the provided A record value to your DNS manager. Create an A record with your chosen subdomain (e.g., sgtm.yourdomain.com) pointing to the IP address provided by Google Cloud.
Google recommends setting a minimum of 2 instances and a maximum of 10 instances for production environments. This configuration provides sufficient capacity for normal traffic while allowing for scaling during traffic spikes from marketing campaigns or special events.
Test your setup by using the preview mode in both client and server-side containers, checking that events appear in the server-side Tag Assistant, and confirming data flows to GA4's DebugView. You should see pageview events being captured in both the server container and ultimately in GA4.
Yes, Google Cloud's infrastructure involves multiple subprocessors and potential data transfers that may complicate GDPR compliance. Google Cloud servers may be subject to various jurisdictions, and the complex network of subprocessors can make it difficult to maintain complete data sovereignty.
Yes, EU-based hosting solutions like gdpr-server-tracking.eu offer server-side GTM hosting on bare metal servers in Finland, owned by an EU-based company. This approach eliminates concerns about third-party cloud provider subprocessors and reduces data transfer risks while providing the same functionality.
If you publish your server-side container without upgrading from the default testing settings to production settings, your setup will likely break under real traffic conditions. The default testing configuration has limited capacity and isn't designed to handle production traffic volumes.
Consider using specialized EU-based hosting providers that offer fixed pricing models rather than variable cloud billing. Services like gdpr-server-tracking.eu provide predictable costs with enhanced privacy features like parameter filtering and cookie hashing, eliminating the need to manage cloud infrastructure yourself.