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tracking

QUERY = 'contents'; CATEGORY = 'tracking' // 2 rows

Every Monday · One email

An applied measurement
case, every week

Analytics and measurement, developer tools, server-side tracking, AI & LLM integrations: weekly real case analyses.

Recent Emails
  • Turning Typography Rules into Prompts with Vibe Coding
  • Data Loss Analysis After GA4 Consent Mode v2
  • E-commerce Code Review Automation with Gemma 4
  • Shopify Flow: Auto Pricing Strategy on Low Stock
  • Server-side Tracking Setup with Cloudflare Workers
...and more
analytics

Tracking Data Between iframe and Parent: postMessage, Consent and Payment Scenarios

Use window.postMessage to move consent, payment and widget events from iframe to parent safely. Origin validation pitfalls, CMP/Stripe/Shopify nuances, race conditions and replay protection.

9/14/2025 Updated
analytics

Reading URLs for Tracking: Gateway Design, ITP and Pixel Sandbox

How URL parts (scheme, host, path, query, fragment) impact tracking. Server-side gateway design, first-party context, Safari LTP and Safari 26 AFP, Shopify Custom Pixel sandbox pitfalls.

6/11/2019 Updated