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Why your tracking data is disappearing (and how server-side tagging fixes it)

Original: Simply Explained: Server-Side Tagging

May 25, 2025
2 min read
Article
Beginner
Simply Explained: Server-Side Tagging

Summary

Chris Vu breaks down SST with a visual comparison of browser vs. proxy tagging.

Who This Is For

Marketing Analysts
Marketing Managers
Technical Marketers

Key Takeaways

  • Learn how third-party tracking gets blocked by Safari's ITP and ad blockers, causing inflated new user metrics
  • Understand how server-side tagging converts third-party requests into first-party ones using an intermediary server
  • See a real case study showing dramatic improvement in tracking accuracy after implementing server-side tagging
  • Get the basic concept of first-party vs third-party components and why it matters for data collection

Tools & Technologies

Google Analytics Facebook Pixel Safari browsers Server-side tagging infrastructure

Topics Covered

tagging basics tracking cookies

Ready to dive deeper?

Read Full Article on medium.com