CONVERSION TRACKING MONITORING
CRITICAL TRACKING ALERT
Purchase conversions −68%
Expected: 124–156 · Actual: 43
Significant deviation detected.
Purchase conversions are significantly below the expected range.
Automated Monitoring · Smart Alerts · No Daily GA4 Checks
COMPLEMENTARY SOFTWARE
GTM Builder complements your monitoring.
With GTM Builder, you can set up GA4 tracking via chat. Conversion Sentinel then monitors your conversion data. Use the builder on its own or combined with monitoring; it's included in Pro and Agency.
THE PROBLEM
Tracking issues are often only discovered after data is already missing.
A website gets updated, a trigger stops working, or an event is tracked less frequently. Such errors often go unnoticed for days or weeks—all while crucial conversion data is lost.
CONVERSIONS PLUMMET
After a change, purchases, leads, or other important events are suddenly tracked less frequently.
THE PROBLEM REMAINS INVISIBLE
Without continuous monitoring, changes often go unnoticed until reporting and decision-making are already impacted.
DATA MISSING
Marketing decisions are suddenly based on incomplete conversion data.
YOUR ADVANTAGE
You shouldn't have to check your tracking yourself every morning.
Conversion Sentinel continuously monitors your most important tracking metrics and makes noticeable changes visible faster.
01 — MONITOR
Automatically monitor conversions
Keep a continuous eye on key conversion and tracking metrics.
02 — DETECT
Detect unusual changes
Sentinel detects notable trends and anomalies in your data.
03 — ALERT
Respond faster
You will be alerted to relevant changes and can investigate issues before any data is lost for longer.
Not just alerts – but context.
Sentinel shows which GA4 metrics are affected and where a closer look is worthwhile.
Investigate issues faster
For example: Purchase events on mobile drop more significantly than on desktop – a clear starting point for root cause analysis.
WHAT SENTINEL MONITORS
GA4 collects your data. Sentinel protects it.
CONVERSION SIGNALS
Detects unusual drops in key events, purchases, or leads in your GA4 data.
CHANGES IN CONTEXT
Highlights noticeable trends so you know where it's worth taking a closer look.
NO DAILY CHECK
Continuously monitors progress, so you don't have to manually compare reports every morning.
YOUR EXISTING DATA
No additional tracking implementation needed: your GA4 data forms the basis for monitoring.
CURRENTLY AVAILABLE
Conversion monitoring that gives you direction.
RELEVANT GA4 RULES
Define key events, conversions, and thresholds tailored to your GA4 property.
AUTOMATIC ALERTS
Get clear insights when Sentinel detects relevant anomalies in your data.
ALERT HISTORY
Keep track of past anomalies and identify recurring trends.
CONTEXT INSTEAD OF ALERT FATIGUE
See which metrics are affected and where it pays to take a closer look.
FOR TEAMS & AGENCIES
Streamline the monitoring of relevant GA4 properties—without daily manual checks.
CLEAR NEXT STEPS
Alerts provide a clear starting point for targeted investigations into potential causes.
FOR MARKETING & E-COMMERCE
Detect faster when key conversion data drops and your reporting or campaign data no longer looks plausible.
FOR AGENCIES
Keep track of your clients' tracking performance without having to manually check every GA4 property each day.
Today GA4. Tomorrow more data sources.
Currently available: Google Analytics 4. Planned for later versions: Google Ads, Meta Ads, and other marketing data sources. Coming Soon – no active connectors in the current product.
START SENTINEL
Your tracking. Automatically monitored.
Get started with conversion monitoring for your key GA4 data—without daily manual checks.
CONVERSION SENTINEL
Can be cancelled monthly
€39 / month · Early Access
Automated conversion monitoring · Detection of unusual changes · Easy-to-understand alerts · Alert history · 1 GA4 property included.
7 days free · cancel monthly. Early access price for the first 20 customers, as long as the subscription remains active. Regular entry price: €59 / month.
Sentinel currently supports Google Analytics 4. Additional connectors are officially planned as "coming soon" for future versions.
BUILT BY TRACKING EXPERTS
We see it time and again in projects: tracking works, something changes on the website—and weeks later, crucial data is missing. That is precisely why Sentinel exists.
EXPERTISE BUILT INTO THE PRODUCT
Experience in conversion tracking, Google Tag Manager, GA4, server-side tracking, consent management, and marketing analytics directly shapes our product development.
WHY EARLY DETECTION MATTERS
Missing conversion data doesn't just mean worse reports. It impacts campaign optimization, budget decisions, attribution, and the quality of the data your decisions are based on.
Sentinel costs a fraction of what undetected tracking issues can cause.
FAQ
Frequently Asked Questions about Sentinel
Don't discover tracking issues weeks later.
Let Sentinel monitor your most important conversion data and find out faster when something goes wrong.