Check a page's H1–H6 heading structure
See all of a page's headings as a tree and check for a single H1, skipped levels and empty headings.
Left today 10/10 uses · Guest
About Heading checker
A clear heading hierarchy helps Google and screen readers understand a page. We list every H1–H6 in order as an indented outline and flag common problems such as no H1, several H1s or jumping from H2 to H4.
Each page should have one H1 stating its main topic, H2s for main sections and H3s for subsections.
FAQ
How many H1s should a page have?
One is recommended; HTML5 allows more but it blurs the structure.
More tools here
IP lookup IPv6 test SSL checker HTTP header checker SEO meta checker Email checker robots.txt generator llms.txt generator UTM builder Meta tag generator