All About GTM Server-Side: Benefits, Implementation, and Privacy Solutions

Frequently Asked Questions
Common questions about "All About GTM Server-Side Webinar | MeasureMinds"
GTM Server-Side is a middleware solution that loads Google Tag Manager from your domain instead of Google's servers. Unlike client-side GTM where tracking code runs in the browser, server-side GTM processes data on your server before sending it to third parties, offering better privacy control, improved site performance, and greater resilience against ad blockers.
The main benefits include improved site performance by reducing client-side code, enhanced privacy capabilities like PII cleaning and IP anonymization, better tracking resilience against ad blockers and privacy-focused browsers like Safari, and the ability to bypass cookie restrictions through server-side cookie management.
GTM Server-Side enhances GDPR compliance by allowing you to clean personally identifiable information (PII) before it reaches third parties, anonymize IP addresses, implement custom data hashing, and maintain greater control over what data leaves your domain, making it easier to respect user privacy preferences.
You need access to your domain's DNS settings to create subdomains, a Google Cloud Platform account for standard implementation, and technical knowledge to configure the server. The setup involves creating DNS entries, configuring the server container, and updating your website's tracking code to point to your server-side endpoint.
Yes, GTM Server-Side cannot track DOM-based interactions like mouse movements or keystrokes, which tools like Hotjar require. It's also not ideal for single-page applications (SPAs) that rely heavily on client-side processing, and some features that require direct browser interaction will still need client-side implementation.
Yes, using Google Cloud Platform for server-side GTM can present GDPR compliance risks due to potential data transfers to non-EU servers and Google's complex network of subprocessors. EU-based hosting alternatives like gdpr-server-tracking.eu provide enhanced compliance by keeping data within the EU on bare metal servers operated by EU companies like Hetzner.
The recommended approach is to run parallel deployments of both client-side and server-side GTM initially, comparing metrics like page views and conversion tracking between both implementations. You should see a 3-5% improvement in tracking coverage with server-side implementation due to fewer tracking requests being blocked by browsers and ad blockers.
Yes, EU-based hosting solutions like gdpr-server-tracking.eu offer enhanced GDPR compliance by hosting on bare metal servers in Finland through EU-based companies. These alternatives eliminate data transfer risks associated with cloud providers' subprocessors while providing the same technical capabilities with additional privacy features for hashing and filtering sensitive data.