# Heading Checker AI Agent > Check page headings, H1 usage, heading order, duplicate titles, missing sections, and SEO structure for cleaner content. ## Pages - [Heading Checker AI Agent](https://headingchecker.dev/): Check page headings, H1 usage, heading order, duplicate titles, missing sections, and SEO structure for cleaner content. - [About](https://headingchecker.dev/about) - [Contact](https://headingchecker.dev/contact) - [Write For Us](https://headingchecker.dev/write-for-us) ## Blog - [H1 Vs H2 Vs H3 Use](https://headingchecker.dev/blog/h1-vs-h2-vs-h3-use) - [Headinag Structure Definition Examples It Works](https://headingchecker.dev/blog/headinag-structure-definition-examples-it-works) - [Heading Hierarchy Mistakes Hurt Your Seo](https://headingchecker.dev/blog/heading-hierarchy-mistakes-hurt-your-seo) - [Headings Improve Page Seo Crawlability](https://headingchecker.dev/blog/headings-improve-page-seo-crawlability) - [Optimize H1 Tags Better Seo Rankings](https://headingchecker.dev/blog/optimize-h1-tags-better-seo-rankings) - [Seo Heading Structure Tips Blog Posts](https://headingchecker.dev/blog/seo-heading-structure-tips-blog-posts)