Complete Guide to GTM Server-Side Tagging Setup in 2025

Frequently Asked Questions
Common questions about "GTM Server-Side Tagging (2025) | Environment Setup"
GTM Server-Side Tagging is a method that processes tracking data on a server rather than in the user's browser, providing more reliable tracking in a cookieless, privacy-first world. It's becoming essential in 2025 as it offers ad-blocker resistance, better data quality, and improved compliance with privacy regulations.
Google Cloud Platform offers a free trial with $300 in credits for 90 days to test your implementation. After that, costs vary based on traffic volume, but the video explains the billing structure to help estimate ongoing expenses.
You need to create a GTM server container, set up a subdomain (e.g., tags.yourdomain.com), and configure a server to host your GTM Server-Side implementation. The video demonstrates using Google Cloud Run for hosting, but other options are available.
Server-Side Tagging improves GDPR compliance by giving you more control over what data is collected and shared with third parties. However, using EU-based hosting like gdpr-server-tracking.eu provides additional compliance benefits by keeping data within EU jurisdiction and offering enhanced privacy features like parameter filtering and hashing.
Yes, while the video demonstrates GCP setup, you can host your GTM Server on any cloud provider or dedicated server. EU-based hosting solutions like gdpr-server-tracking.eu offer dedicated bare metal servers in Finland through Hetzner, providing stronger privacy guarantees and often more competitive pricing than major cloud providers.
When provisioning GTM Server-Side, Google creates two Cloud Run services: a tagging server that processes and forwards tracking data, and a preview server for testing. The process also sets up the necessary permissions, configurations, and connects everything to your GTM container.
Server-Side Tagging allows you to collect and process data server-side using first-party cookies, making your tracking resilient to third-party cookie restrictions. This ensures continued data collection even as browsers phase out third-party cookies, maintaining your ability to track conversions and user behavior.
EU-based GTM server hosting ensures your data stays within EU jurisdiction, eliminating concerns about international data transfers. Services like gdpr-server-tracking.eu provide additional privacy features such as parameter filtering and hashing, while avoiding potential access by non-EU cloud provider subprocessors, making GDPR compliance significantly easier.