How Cookieless Tracking Works: Technical Deep Dive
· 15 min read
Introduction
The Problem: Google Analytics loses 60-87% of EU visitor data due to cookie rejections and banner ghosting. Cookieless analytics solves this by tracking without cookies, consent banners, or IP addresses.
What You'll Learn:
- How cookieless tracking actually works technically
- Why it captures 100% of data that cookie-based tools miss
- The session-based architecture behind Sealmetrics
- Implementation differences vs traditional analytics
- Legal compliance under GDPR Article 6(1)(f)
Key Takeaways:
- Cookieless tracking uses session identifiers instead of persistent cookies
- Zero IP storage means no personal data processing (no consent needed)
- 25-month data retention possible under legitimate interest
- Sealmetrics captures what GA4 misses: ghosted users, cookie rejecters, Safari/Firefox visitors
For a complete overview of cookieless analytics, see our Cookieless Analytics: Complete Guide 2026.