Free tools
Every one of these reads your site, container, or dataLayer and hands back a report you can share. In ship order.
Pick a tool; you'll get an email the day it goes live.
- Live
Tracking Health Scanner
Paste a URL. See every tag that fires, duplicate GA4 configs that double-count, tags firing before consent, and what each one costs in page weight.
- Live
GTM Container Auditor
Upload your container export. Get a graded report: tags with no trigger, orphaned variables, missing consent settings, hardcoded IDs, risky Custom HTML.
- Building now
Consent Mode v2 Checker
Which CMP, what defaults, whether ad_user_data and ad_personalization are set, and whether pings leak before consent.
- Planned
DataLayer Validator
Paste a dataLayer dump. Validate against GA4 recommended-event schemas and catch PII (emails, phones, postcodes) before Google does.
- Planned
GTM Container Diff
Two exports in, a semantic diff out: what changed, what it touches, what could break.
- Planned
DataLayer + Container Generator
Pick your platform and events, get the dataLayer snippets and an importable GTM container JSON.
- Planned
UTM Governance
A shared taxonomy with enforced values, normalization, duplicate detection, bulk CSV, and a campaign registry your whole team uses.
- Planned
Server-side GTM Cost Estimator
Events per month and region in, GCP vs hosted cost and expected latency out.
- Planned
Regex + CSS Selector Playground
Test a regex against a list of URLs exactly the way GTM evaluates it; test a selector against a live page.
- Planned
GA4 Metric Glossary
The real formula and gotchas behind every GA4 metric and dimension, with the Universal Analytics equivalent.