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Page Load Time Analyzer

Paste your page HTML to analyze resource sizes, count requests, detect render-blocking elements, and get optimization recommendations.

Page HTML

Analysis updates as you type.

How It Works

This tool parses your HTML source code to extract external resource references and detect common performance issues. It identifies stylesheets, scripts, images, fonts, and other resources, then analyzes their placement and attributes to find optimization opportunities.

What It Checks
  • Render-blocking resources — CSS and synchronous JS in the <head> that delay first paint
  • Image optimization — missing loading="lazy", missing dimensions, large inline images
  • Script loading — missing async or defer attributes on external scripts
  • Font loading — font-display usage and preload hints
  • Resource counts — total external requests that affect load time
  • HTML size — raw document size that affects time-to-first-byte
Performance Tips
  • Add defer or async to non-critical scripts
  • Use loading="lazy" on below-the-fold images
  • Specify width and height on images to prevent layout shifts
  • Minimize render-blocking CSS by inlining critical styles
  • Use <link rel="preload"> for critical fonts
  • Reduce total request count by combining or removing unused resources
Note: This tool analyzes static HTML structure only. For real-world load time measurement, use browser DevTools or tools like Lighthouse.

Embed This Util

You can embed this util on your own site as a widget. Adding ?embed=1 to the URL loads a compact version with just the tool itself; no header, menu, or documentation. Paste this snippet into your HTML: 


    

       Copy snippet
      Adjust the height to taste.
    

  




  

  
  

    
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