Heading Structure Checker

Extract H1–H6 headings from any webpage and check hierarchy, level skips, and duplicates.

See your heading structure at a glance. A Chrome extension that extracts all H1–H6 headings from any webpage and displays them in a clear, indented hierarchy so you can spot structural issues instantly. Perfect for: • Auditing heading tag structure before publishing a page • Reviewing whether article headings follow a logical hierarchy • Checking CMS-generated pages for heading errors • Analyzing competitor page structure for SEO insights Key Features: • Lists all H1–H6 headings in DOM order • Indented display that mirrors the heading hierarchy • Auto-detects skipped heading levels with warnings • Flags multiple H1 tags or missing H1 • Detects empty headings • Shows character count for each heading • Summary of heading counts by level • One-click copy — paste the outline into reports, tickets, or docs Privacy: • No data is ever sent to external servers • All processing happens entirely in your browser • No personal information or cookies are collected