For Growth Agencies

Your clients' tracking breaks silently.
Stackgard catches it.

Continuous cross-platform audits of GTM, GA4, Google Ads, and HubSpot. Catch configuration gaps before they cost money — not at the next quarterly review.

Request Early Access Now onboarding a small group of agencies
stackgard — audit report
Measurement Stack Audit 7 issues found
GTM
GA4
Ads
HubSpot
P0 Auto-tagging disabled — offline conversion loop broken
P1 12 HubSpot forms active, GTM only tracks 3
P1 GA4 key event not imported into Google Ads
OK Consent Mode V2 correctly configured
6–8 weeks
Average time to discover a tracking gap
€15K+
Wasted ad spend per client before detection
4 hours
Manual audit time per client, per quarter
The Problem

Tracking breaks silently. You find out too late.

Silent Failures

A developer moves a landing page. Tracking templates break. Google Ads stops receiving conversion signal. Nobody notices for weeks.

Setup Drift

A new HubSpot form goes live without a GTM trigger. A consent banner gets misconfigured. Enhanced Conversions silently stop matching.

Knowledge Walks Out

Your senior analyst leaves. The replacement doesn’t know auto-tagging needs to be on, or that the offline conversion loop exists.

The Solution

What Stackgard does

Think of it as insurance for your measurement stack. Continuous monitoring across four platforms, with findings your team can act on.

Audit

Cross-platform audit checking 30+ configuration points across GTM, GA4, Google Ads, and HubSpot in minutes.

Detect

Catches silent failures: broken tracking templates, missing form triggers, disabled auto-tagging, consent gaps.

Guide

Every finding comes with business impact, severity rating, and step-by-step fix instructions your team can follow.

Unique Value

Cross-platform intelligence

Gaps between platforms that no single-platform tool can catch — surfaced automatically.

HubSpot has 12 active forms, but GTM only tracks 3 of them
GA4 key event “generate_lead” exists but is not imported into Google Ads
Google Ads auto-tagging is off — the entire offline conversion loop is broken
Pipeline has MQL → SQL → Closed Won, but Google Ads only sees “Form Submit”
Tracking template UTMs copy-pasted from Brand campaign into ISP campaign
Coverage

What gets checked

30+ configuration points across four platforms, checked in minutes.

Google Tag Manager
  • Consent Mode V2 setup
  • Google Tag firing order
  • Conversion Linker
  • Enhanced Conversions
  • Form tracking (7 methods)
  • HubSpot iframe listeners
  • Paused/duplicate tags
Google Ads
  • Conversion goal structure
  • Primary vs secondary conversions
  • Auto-tagging (GCLID)
  • Tracking templates & UTMs
  • Offline conversion imports
  • Enhanced Conversions for Leads
Google Analytics 4
  • Data stream connectivity
  • Key event configuration
  • Event hierarchy compliance
  • Custom dimensions
  • Satellite property instrumentation
HubSpot
  • Active form inventory
  • Form-to-GTM trigger alignment
  • Pipeline stage mapping
  • CRM → Google Ads feedback loop
  • Conversion goal continuity
Who It's For

Built for growth agencies

Agency Owners

Reduce client churn by catching measurement failures before they become trust-breaking quarterly review surprises. Every audit becomes a proof point of your value.

Performance Managers

Stop wasting cycles on manual GTM/GA4 audits. Run a full cross-platform check in minutes and focus your time on strategy, not configuration hunting.

Account Managers

Walk into client meetings with a measurement health report. Proactively surface issues instead of reacting to complaints. Your junior team operates at senior level.

Get Early Access

We’re onboarding a small group of agencies for the initial release. If you manage measurement stacks for B2B clients, let’s talk.

hello@stackgard.com