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2 posts tagged with "Implementation"

Implementation guides and technical setup.

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How Session-Based Tracking Works: Cookieless Architecture Explained

· 19 min read
Rafael Jimenez
Founder & CEO at Sealmetrics

TL;DR — How session-based tracking replaces cookies. Technical deep dive into Sealmetrics' architecture: hashing, token rotation, and data flow.

Introduction​

The Problem: Google Analytics loses the visitors who drop out at the banner through cookie rejections and banner ghosting — where you land depends on your sector, brand strength and traffic sources. 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 the data cookie-based tools miss
  • The session-based architecture behind Sealmetrics
  • Implementation differences vs traditional analytics
  • The legal position: minimal, pseudonymised data under legitimate interest (Art. 6(1)(f))

Key Takeaways:

  • Cookieless tracking uses session identifiers instead of persistent cookies
  • Nothing stored on the device and no data that identifies anyone (no consent banner needed for Sealmetrics' own analytics, self-assessed; in Germany an open question — see Germany)
  • 24-month retention on aggregated, non-identifying reports
  • 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.


Cookieless Analytics: Complete Guide 2026

· 22 min read
Rafael Jimenez
Founder & CEO at Sealmetrics

TL;DR — Cookieless analytics measures the traffic lost to consent banners, closing the consent gap cookie tools lose. Guide to implementation, GDPR, and comparisons.

Last Updated: March 10, 2026

Introduction​

Cookieless analytics has emerged as the solution to this data loss crisis. Unlike traditional cookie-based platforms like Google Analytics — which lose the visitors who ghost or reject the banner — cookieless analytics measures that traffic without consent banners, cookies, or personal identifiers like IP addresses.

This complete guide explains how cookieless analytics works, how it is designed to comply with the GDPR without consent, and how platforms like Sealmetrics provide businesses with accurate, complete data while respecting user privacy.

Key Takeaways​

  • Cookieless analytics measures the traffic the banner loses, without cookie consent banners, closing the consent gap
  • No consent banner needed on Sealmetrics' own assessment: nothing is written to the device, nothing stored identifies anyone, and the session identifier, which rotates daily and then cannot be reconstructed, is assessed against the audience-measurement exemption of ePrivacy Article 5(3). In Germany this is an open question — see Germany
  • Session-based tracking replaces cookies with temporary identifiers that reset after each visit
  • Sealmetrics provides true cookieless analytics without storing IP addresses (unlike competitors)