Check Website Tags & Pixels
Enter the full URL including https://
Supported Tags & Pixels
Free Website Tag & Pixel Checker Tool
Verify your website's tracking implementation with our comprehensive tag checker tool. Instantly detect Google Tag Manager (GTM), Meta/Facebook Pixel, Google Analytics, TikTok Pixel, and 20+ other marketing tags and pixels installed on any website.
What This Tool Detects
Our tag checker scans websites for all major tracking and analytics implementations:
- Google Tag Manager (GTM) - Container ID detection (GTM-XXXXXX)
- Google Analytics 4 (GA4) - Measurement ID detection (G-XXXXXXXXXX)
- Meta/Facebook Pixel - Pixel ID detection for conversion tracking
- TikTok Pixel - Event tracking pixel detection
- LinkedIn Insight Tag - Partner ID detection
- Twitter/X Pixel - Conversion tracking detection
- Microsoft Clarity - Session recording detection
- Hotjar - Heatmap and recording detection
- And many more advertising and analytics pixels...
How to Use the Tag Checker
- Enter URL - Type the full website URL you want to check
- Or Paste HTML - Copy the page source and paste it for analysis
- Review Results - See all detected tags, pixels, and their IDs
- Get Recommendations - Receive suggestions for improving your tracking setup
Why Check Your Tags?
Proper tag implementation is crucial for:
- Accurate Data - Ensure your analytics are tracking correctly
- Conversion Tracking - Verify ad pixels fire properly for ROAS measurement
- Debugging - Quickly identify missing or duplicate tags
- Competitor Analysis - See what tracking tools competitors use
- Compliance - Audit tracking for privacy regulations (GDPR, CCPA)
Frequently Asked Questions
How does the tag checker work?
The tool analyzes the HTML source code of a webpage, searching for known patterns and signatures of popular tracking tags, pixels, and analytics scripts. It identifies container IDs, pixel IDs, and tracking codes.
Can it detect dynamically loaded tags?
Tags loaded via JavaScript after page load may not be detected when using URL input. For complete detection, use browser developer tools or paste the fully rendered HTML.
Is this tool free to use?
Yes, our tag checker is completely free with no registration required. Use it as often as you need for your websites or competitor analysis.
What's the difference between GTM and individual tags?
Google Tag Manager is a container that can hold multiple tags. If GTM is detected, individual tags (like GA4 or Facebook Pixel) may be deployed through GTM rather than directly in the HTML.