Headings bookmarklet will identify all headings on the page presented with HTML H1-H6 tags and with ARIA role=heading. This will help accessibility testers understand the layout of the page and identify the text that is a heading but is not marked as such.
This will help you evaluate the WCAG Guideline 1.3.1 Info and Relationships.
Headings Bookmarklet for Accessibility Testing
Headings Bookmarklet for Accessibility Testing inserts a black on yellow opening and closing tag into the DOM around each H1-H6 and WAI-ARIA role=heading aria-level=1-6
Headings Bookmarklet Code
We hope these accessibility bookmarklets come in handy during your next accessibility audit.
Reference: Accessibility Bookmarklets