A collection of front-end debugging script snippets to be used in the Sources panel in Chrome DevTools.
You can copy these scripts and add them to your collection of snippets.
This not a replacement for automatic testing tools like the HTML validator, Lighthouse, axe, or Wave. This collection of scripts is meant to be used in addition to automatic testing tools.
- Logs the page
<title>
- Logs the page description
- Logs the defined natural language
- Logs the charset
- Logs the number of DOM nodes in
<head>
- Logs the number of DOM nodes in
<body>
- Lists headings and document outline
- Lists images without
width
and/orheight
attributes - Lists images with empty
alt
attributes - Lists images with suspicious
alt
attributes
For testing HTML output without CSS.
- Removes all
<link>
s to CSS files - Removes all
style
elements - Removes all
style
attributes
- Checks if elements that usually should be present, are actually there.
- Checks if elements that probabaly shouldn’t be present, aren’t there.