Skip to main content

SEO Markup & Content Inspector

Inspect structured data and headings; build canonical and hreflang links.

How to use this tool
  1. Choose the workflow and enter the requested details.
  2. Review options and run or save the selected action.
  3. Check the result and export or save where available.

Limits and requirements

Provider-based features require connectivity and configured services.

Check each operation’s notes. Some workflows run on your device; others use the OneTabTool server or a named third-party service. Don’t assume every tool processes files in the same way.

Available operations

  • English readability & content statistics

    Six readability metrics with CMUdict pronunciation syllables and explicit unknown-word counts. Dataset license: /data/cmudict/LICENSE.

  • Weighted keyword phrase extraction

    Local statistical keyword extraction with English stop words. Not search-volume or ranking data.

  • Schema.org vocabulary validator

    Checks bundled Schema.org types, properties and inheritance. Schema.org vocabulary © its sponsors, CC BY-SA 3.0; attribution at /data/schemaorg/ATTRIBUTION.txt.

  • Canonical link generator
  • Hreflang link generator
  • Title & description length checker

Questions about SEO Markup & Content Inspector

What does SEO Markup & Content Inspector do?

Inspect structured data and headings; build canonical and hreflang links.

How do I use SEO Markup & Content Inspector?

Choose the workflow and enter the requested details. Review options and run or save the selected action. Check the result and export or save where available.

What should I check before using the result?

Provider-based features require connectivity and configured services.

Related tools