Does this skill help with cross-domain tracking?

Yes, it covers the configuration of the linker parameter to pass client and user identifiers across different domains and subdomains.

What are the limits for user properties in GA4?

The skill reminds users of GA4 limits, such as the 25-property cap per property and character limits for property names (24) and values (36).

How does this skill handle PII in GA4?

The skill provides strict guidelines and implementation patterns for hashing identifiers and using internal IDs to ensure no Personally Identifiable Information (PII) is sent to Google Analytics.

Can I use this for both gtag.js and GTM?

Yes, the skill includes specific code snippets and configuration steps for both direct gtag.js implementations and Google Tag Manager Data Layer setups.

GA4 User Tracking & Identity

Name: GA4 User Tracking & Identity
Author: henkisdabro

byhenkisdabro

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分析と監視

Implements GA4 User ID, cross-device tracking, and custom user properties for unified audience analytics and privacy-compliant data management.

概要

This skill provides specialized technical guidance for implementing user-centric tracking within Google Analytics 4. It enables Claude to assist developers in setting up persistent User IDs for authenticated sessions, configuring user-scoped custom dimensions, and managing Reporting Identity settings like Blended or Observed tracking. By following these patterns, you can accurately track user lifecycles across multiple devices and domains while ensuring compliance with privacy standards through PII avoidance and data deletion workflows.

主な機能

Technical implementation of User ID via gtag.js and GTM Data Layer
Guidance on Reporting Identity settings for cross-device stitching
Configuration of user-scoped custom dimensions and persistent properties
Privacy-focused workflows for PII avoidance and data deletion requests
8 GitHub stars
Cross-domain tracking setup to maintain user continuity

ユースケース

Tracking persistent customer attributes like subscription tier or lifetime value
Unifying user activity across mobile apps and desktop websites for logged-in users
Auditing and debugging user identification issues in GA4 DebugView

概要

主な機能

Technical implementation of User ID via gtag.js and GTM Data Layer
Guidance on Reporting Identity settings for cross-device stitching
Configuration of user-scoped custom dimensions and persistent properties
Privacy-focused workflows for PII avoidance and data deletion requests
8 GitHub stars
Cross-domain tracking setup to maintain user continuity

ユースケース

Tracking persistent customer attributes like subscription tier or lifetime value
Unifying user activity across mobile apps and desktop websites for logged-in users
Auditing and debugging user identification issues in GA4 DebugView