Blog

Analytics, with the receipts.

Engineering-minded notes on privacy-first analytics — GA4 migration, cookieless tracking, how the metrics are really computed, and the depth most tools skip.

• May 28, 2026

  Funnels, retention and paths from one filter model

  How a single typed filter algebra powers funnels, retention cohorts and journey paths — no separate tools, no re-instrumentation, no waiting.

• April 15, 2026

  Cookieless analytics, explained — no banner, still GDPR-clean

  What "cookieless" actually means, how a daily-rotated hash identifies sessions without tracking people, and why it keeps you clear of GDPR consent.

• March 4, 2026

  How bounce rate is actually computed (and why GA shows 0%)

  The real definition of bounce rate, why GA4 quietly redefined it into a broken metric, and how to read single-pageview sessions correctly.

• February 10, 2026

  Migrating off Google Analytics 4: a practical guide

  A step-by-step migration off GA4 — exporting history, swapping the tag, mapping events and goals, and validating your new numbers before you cut over.