Category
Google Tag Manager for agencies
This category is about GTM for agencies: auditing, cleaning up and documenting Google Tag Manager containers across clients. Posts cover the container audit checklist, the dataLayer, Consent Mode v2 and choosing a consent management platform, which settings belong in GTM and which in GA4, and software for managing many containers.
Posts in Google Tag Manager
June 21, 2026 · 4 min read
GTM vs GA4: what you configure where (the reference)
GTM vs GA4: Tag Manager decides what fires and when, GA4 decides what it means. A what-goes-where table and the five mix-ups that waste the most time.
June 21, 2026 · 5 min read
The dataLayer explained: the foundation every GTM setup stands on
The dataLayer is what GTM reads to fire tags. What it is, how to push to it, the rules that stop empty variables, and why a documented spec beats DOM scraping.
June 21, 2026 · 4 min read
Choosing a consent management platform (CMP) for agency clients
Choosing a consent management platform for agency clients: what matters — Google-certified, Consent Mode v2 wiring, geo-targeting — and how to verify it works.
May 22, 2026 · 11 min read
Google Consent Mode v2 setup for agencies (the version that actually works)
A Consent Mode v2 setup can block EU conversions without an error. The setup that works: what each signal does, the GTM wiring, and the verification habit.
May 11, 2026 · 9 min read
GTM management software: the honest buyer's guide (2026)
What GTM management software does in 2026 — multi-container ops, change auditing, template inheritance — and the agency evaluation criteria.
May 1, 2026 · 7 min read
The GTM container audit checklist agencies actually use
The 12-point GTM container audit that finds dead tags, duplicate triggers, and consent-blocked tags in about 45 minutes — without breaking anything live.