Free GTM Audit Tool
Audit your Google Tag Manager container in under 60 seconds. Check tag sequencing, consent mode, Custom HTML security risks, and GDPR compliance - automatically, with no login required.
Run Free GTM AuditNo login required - results in under 60 seconds
What the GTM audit checks
Six dimensions of your GTM container, analysed automatically from the published container configuration.
Tag inventory and sequencing
Lists every tag in your GTM container with its firing status. Identifies tags missing consent checks, duplicate tag entries, and sequencing rules that cause tags to fire before dependencies are ready.
Consent mode integration
Verifies that your GTM container pauses tags correctly when consent is withheld. Checks for the consent trigger pattern, consent initialization sequence, and correct use of pause/block consent state.
Cookie behavior vs tag firing
Cross-references which cookies each tag sets against the actual consent state at the time of firing. Identifies pre-consent tag fires - the most common GTM-related GDPR violation.
Custom HTML tag security
Scans Custom HTML tags for hardcoded pixels, inline tracking code that bypasses consent, document.write() usage, and third-party script loads that are not auditable.
Triggers and variables
Detects orphaned triggers (defined but not used by any tag) and orphaned variables (defined but never referenced). Identifies bloated containers that load unnecessary logic on every page.
Third-party pixel detection
Surfaces all marketing pixels (Meta, LinkedIn, TikTok, Snap, Pinterest, Google Ads) and confirms each is consent-gated. Flags any pixel that fires pre-consent without a legal basis.
The most common GTM issues we find
Every finding includes a copy-to-clipboard fix recommendation and severity rating.
Tags fire before consent — GA4, Meta Pixel, or Google Ads tags load on page view before the consent banner appears
Consent initialization missing — no gtag("consent","default") call before the GTM snippet
Consent update never fires — CMP grants consent but GTM tags never receive the update signal
Hardcoded pixels in Custom HTML — tracking code outside GTM consent control, impossible to block
Missing consent trigger — tags use All Pages instead of Consent Initialization trigger
Duplicate tags — same GA4 or ad pixel loaded from both GTM and a hardcoded page script
Orphaned triggers — 5+ triggers defined but not attached to any active tag
Bloated container — 50+ tags increasing page load time and maintenance overhead
Unversioned container — live container has unpublished changes not reflected in any version
Why your GTM container needs auditing
GTM containers accumulate technical debt silently. Tags added by three different teams over two years rarely have a consistent consent architecture. An audit forces a single complete picture of what fires, when, and under what consent state.
The GDPR enforcement landscape has shifted since 2022. DPAs across Europe are now actively investigating GTM configurations - particularly sites that fire analytics or advertising tags before consent. A GTM audit creates a documented baseline that demonstrates due diligence.
Custom HTML tags are the most common source of hidden risk. They can bypass GTM consent controls entirely and load third-party scripts that no one on the current team added intentionally. The GetInlytics GTM audit inspects every Custom HTML tag in the published container.
DPAs actively audit GTM configurations for pre-consent tag fires
Custom HTML tags frequently bypass consent controls — not auditable from GTM UI alone
Container bloat (50+ tags) increases page load and maintenance risk
Consent Mode update chain breaks silently when CMP platforms update
Orphaned triggers continue to fire even when their parent tag is paused
Server-side GTM requires a separate audit — client-side config does not auto-transfer
What you get after the GTM audit
A scored, shareable report with per-issue fix recommendations - ready to hand to your development team.
Full tag inventory
Every tag in your published container listed with its type, trigger, consent state, and firing status.
Per-issue fix recommendations
Each compliance finding includes a specific recommended fix you can copy and paste into your GTM workspace.
Shareable report permalink
Every scan creates a permanent, shareable report URL - send it to your developer, DPO, or client without a login.
Combined GTM + GA4 audit
The GTM audit runs alongside the full GA4, cookie consent, and compliance audit in a single scan.
GTM audit - frequently asked questions
What does a GTM audit check?
A GTM audit checks your Google Tag Manager container for tag sequencing and consent compliance, pre-consent tag fires, Custom HTML security risks, duplicate tags, orphaned triggers and variables, third-party pixel consent gating, and compliance with GDPR, CCPA, and ePrivacy regulations.
How do I audit my Google Tag Manager container?
With GetInlytics, you paste your website URL, choose your compliance law, and run the scan. The tool automatically detects your GTM container ID, fetches the published container JSON, and analyses every tag, trigger, and variable. No GTM Admin API access, no login, and no browser extension is required.
What are the most common GTM compliance issues?
The most common GTM GDPR compliance issues are: (1) tags firing before the consent banner appears, (2) missing gtag("consent","default") initialization before the GTM snippet, (3) the CMP not triggering a consent update in GTM after user accepts or rejects, and (4) Custom HTML tags with hardcoded pixels that bypass consent control entirely.
Does the GTM audit require access to my GTM account?
No. The GetInlytics GTM audit is entirely server-side and works from your published website URL. It detects the GTM container ID, fetches the published container configuration from Google's public endpoint, and analyses it automatically. No GTM account access, no API key, and no login is required.
Is the GTM audit free?
Yes. The complete GTM container audit - including consent mode analysis, tag sequencing, Custom HTML review, and GDPR compliance scoring - is free with no login required. A shareable report link is generated after every scan.
How do I fix GTM consent mode issues found in the audit?
The audit report includes a recommended fix for every issue, which you can copy to clipboard. For detailed step-by-step GTM consent mode implementation, the GTM Fix Guide covers the complete consent sequence, CMP integration patterns for OneTrust, Cookiebot, Usercentrics, and more, and tag sequencing configuration. It is available as a download from the report page.
Audit your GTM container now - free
Tag sequencing, consent mode, Custom HTML security, GA4 compliance - all in one 60-second scan.
Start Free GTM AuditNo login required - shareable report generated automatically