Get Google Tag Manager Size

Advanced Google Tag Manager container monitor & Performance analyzer

What does this extension do?
This extension provides complete real-time monitoring of Google Tag Manager containers in your browser. Much more than just showing the size in KB, it delivers deep and detailed analysis of how GTM is impacting your website's performance.

Key Features
Smart Monitoring
The extension automatically detects all GTM containers on the page, showing exact size in KB and percentage of Google's 200KB limit. Works with both official implementations and custom proxies, providing accurate data on compression and loading times.

Detailed Tag Analysis
Goes beyond basic numbers by categorizing all tags by type - Google Analytics, advertising, social media, custom tags and more. You can see exactly how many tags of each category are active and how they're distributed in your container.

Performance Metrics
Measures individual loading time for each container and total impact on page performance. Color-coded visual indicators (green/yellow/red) instantly show whether your container is within recommended parameters.

Modern Interface
Uses Chrome's modern side panel with dark/light theme support, intelligent caching for fast data access, and real-time updates without needing to reload the page.

Who is it ideal for?
Digital Marketing Professionals can monitor tag implementations and identify potential container bloat. Web Developers can optimize GTM's impact on site speed. SEO Specialists can ensure GTM doesn't hurt performance. Analytics Teams have a complete tool for implementation auditing.

The difference
This isn't just an extension that shows sizes - it's a professional analysis tool that provides detailed insights into the structure, performance, and optimization of your GTM containers, all in an elegant and user-friendly interface.RetryClaude can make mistakes. Please double-check responses.