About the Heading Structure Checker (H1-H6)
Heading tags (from <h1> to <h6>) create the semantic structural skeleton of a webpage. They help search engine crawlers understand topic hierarchy and topical depth while allowing screen readers and users to scan content efficiently.
Web accessibility standards (WCAG) and search engine guidelines recommend having exactly one <h1> tag per page representing the main topic, followed by logically nested subheadings (<h2> for major sections, <h3> for sub-points). Skipping heading levels (such as placing an <h4> directly under an <h2>) disrupts document flow.
This Heading Structure Checker parses HTML code or markdown headings, counts occurrences of each heading level, flags missing or multiple H1 tags, identifies skipped hierarchy levels, and renders a clean, copyable visual document outline.
A common pitfall in CMS templates is styling sidebar widgets or navigation items with <h2> or <h3> tags, inadvertently polluting the main article's semantic structure. Another issue is using bold text (<p><strong>) instead of authentic heading tags, robbing search engines of structural context.
Tip: Ensure your page has exactly one <h1> containing the primary keyword, and use <h2> and <h3> tags to introduce distinct topical sub-sections.