Heading Analyser
Analyse H1–H6 structure from HTML.
Heading Analyser extracts H1–H6 tags from pasted HTML, counts each level, and flags missing or multiple H1s and skipped heading levels.
Frequently Asked Questions
Does my data leave the browser?
HTML is parsed in your browser and never uploaded.
Should every page have one H1?
Usually yes — one clear H1 matching the primary topic works best for most pages.
Does it execute scripts in the HTML?
No. The browser’s HTML parser builds a document tree without running scripts.