Check your H1-H6 structure for SEO best practices.
Free — no limits. Runs in your browser.
A heading analyzer is a tool that examines the H1 through H6 tag structure of your web page to identify issues that could hurt your SEO performance and accessibility. Headings create the hierarchical outline of your content — they tell search engines and screen readers how your page is organized, which sections are most important, and how subtopics relate to the main subject. The metagenerator.org Heading Analyzer parses your HTML or Markdown content and instantly surfaces structural problems like missing H1 tags, skipped heading levels, and duplicate heading text.
This tool runs entirely in your browser with no usage limits or API calls. Simply paste your page source code or Markdown content, and the analyzer builds a visual tree of your heading hierarchy while flagging any issues. It supports both standard HTML heading tags and Markdown heading syntax (# through ######), making it useful for developers, content creators, and technical SEO professionals working with any content format.
A clean heading structure is one of the easiest SEO wins available. It improves crawlability, helps Google understand topic relationships within your content, enhances accessibility for users with screen readers, and contributes to better featured snippet eligibility. Despite this, heading issues remain among the most common on-page SEO mistakes — our tool helps you catch them before they impact your rankings.
Google uses heading tags as strong signals to understand what a page is about and how its content is structured. According to Google's SEO Starter Guide, headings help "create a hierarchical structure for your content, making it easier for users and search engines to navigate." Every page should have exactly one H1 tag that describes the primary topic. From there, H2 tags break content into major sections, H3 tags into subsections, and so on. Skipping levels (for example, jumping from H2 to H4) breaks this hierarchy and signals to search engines that your content structure is disorganized. Duplicate headings confuse both users and crawlers about which section is authoritative for a given subtopic. Properly structured headings also increase your chances of appearing in featured snippets, as Google often pulls content from well-organized sections with clear headings. For AI search engines, heading structure is even more critical — LLMs use headings to identify and extract the most relevant sections of a page when generating answers.
Fix heading issues and optimize your full content for AI search with our AI Content Optimizer. Check keyword distribution with the Keyword Density Checker.
A Heading Structure Analyzer scans your web page and evaluates the hierarchy of H1-H6 heading tags. Proper heading structure is essential for both SEO and accessibility — it tells search engines about your content's organization and helps screen readers navigate the page. This tool checks for common issues like missing H1 tags, skipped heading levels (jumping from H2 to H4), duplicate headings, headings that are too long or too short, and improper nesting. It also evaluates whether your headings contain relevant keywords and accurately describe the content that follows them.
Google uses headings to understand page structure and topic relevance. The H1 tag carries significant weight for keyword targeting, and properly nested subheadings help Google understand the relationship between different sections of your content.
Clear headings help users scan content quickly and find what they're looking for. Pages with good heading structure have lower bounce rates and higher time-on-page — both positive engagement signals for SEO.
Screen readers rely on heading hierarchy to navigate pages. Skipped heading levels or missing H1 tags make your site less accessible, which can affect compliance with WCAG guidelines and ADA requirements.
Google often pulls featured snippets from well-structured content with clear headings. H2 and H3 tags that phrase common questions are particularly effective at winning featured snippet positions.
Yes. Every page should have exactly one H1 tag that describes the main topic of the page. While HTML5 technically allows multiple H1 tags, Google's John Mueller has confirmed that a single H1 per page is best practice for SEO.
No. Heading levels should follow a logical hierarchy: H1 → H2 → H3, etc. Jumping from H2 directly to H4 creates a confusing structure for both search engines and screen readers. Always use the next level down for subsections.
Include your primary keyword in the H1 naturally, and use related keywords in H2/H3 tags where they fit naturally. Don't force keywords into every heading — Google can detect keyword stuffing and it hurts user experience.