Google Analytics (GA4) Debug Checklist
Purpose
This checklist helps you verify that your Google Analytics (GA4) tag and events are properly installed and sending data from your funnel pages before contacting support.
1. Check if the Google Tag Is Installed
Step 1: Open your funnel page in Google Chrome.
Step 2: Right-click on the page and click Inspect.
Step 3: Go to the Network tab.
Step 4: Refresh the page.
Step 5: In the search/filter bar, type:
gtag/jscollect
Look for requests such as:
google-analytics.com/collectgoogle.com/ccm/collect
If you see these requests:
Your Google tag is installed and sending data.
If you do not see them:
The tag may not be added correctly, or it may be blocked.
2. Use Google Tag Assistant (Recommended)
Step 1: Go to Google Tag Assistant.
Step 2: Enter your funnel domain.
Step 3: Start a debug session.
Step 4: Reload your funnel page.
Check for:
A
page_vieweventAny custom events you expect (e.g., form submission, button click)
If events appear:
Your tag is firing correctly on the page.
If no events appear:
Your tag may not be configured properly.
3. Confirm Data in GA4 Realtime
Step 1: Log in to your Google Analytics account.
Step 2: Select the correct GA4 property.
Step 3: Go to Reports → Realtime.
Step 4: Visit your funnel page or trigger the event.
If you see your visit or event in Realtime:
Data is successfully reaching GA4.
If you do not see it:
Possible reasons include:
Incorrect Measurement ID
Tag installed on a different domain
Property mismatch
Data filters blocking traffic
4. Check for Browser Errors
Open Inspect → Console and look for errors such as:
gtag is not definedScript blocked errors
Content Security Policy (CSP) errors
If you see errors, they may prevent tracking from working correctly.
When to Contact Support
Please contact support if:
The tag appears installed but events are not firing
Events fire in Tag Assistant but do not appear in GA4
You see script or blocking errors you cannot resolve