Measures the total size of the HTML document.
This measures the file size of your main HTML document, without including images, CSS, or JavaScript files.
A smaller HTML file can be downloaded and processed by the browser more quickly. Very large HTML documents can be a sign of inefficient code or too much content being loaded at once.
While not as critical as the total page size (with all assets), a large HTML file can contribute to a slower Time to First Byte (TTFB) and overall slower rendering.
Run a free audit to see how your site performs on HTML Page Size and 159 other checks.
Start Free AuditChecks if images use responsive techniques like srcset.
Checks if images have width and height attributes to prevent layout shift.
Checks for JavaScript errors in the browser console. (Note: In-dev check)
Checks if GZIP or Brotli compression is enabled.