SEO Tools

Hreflang Tag Checker

Use Hreflang Tag Checker to validate hreflang tags for BCP 47 compliance, x-default presence, and duplicate codes. The tool produces a hreflang audit report with language map and issue list. Checks language code validity, self-referential tags, x-default, and reciprocal tag consistency.

Free SEO analysis No sign-up required Instant results
Fetches page HTML and validates all hreflang tags in the <head>.
Language Map
Hreflang Language Region URL Status
Hreflang Best Practices

Features

  • Browser-only HTML analysis. No upload
  • Pass, warn, fail, and info status labels
  • Export report as JSON
  • Checks language code validity, self-referential tags, x-default, and reciprocal tag consistency.

How to use it

  1. Paste the HTML source of a page into the input panel.
  2. Click Check HTML to run the analysis in your browser.
  3. Review the report sections.
  4. Export as JSON or copy the summary.

Use cases

  • Audit on-page SEO before publishing or updating a page
  • Check social sharing metadata before a campaign
  • Verify heading structure and schema markup after a CMS change

Limitations

  • JavaScript-rendered content is not evaluated. Only the static HTML response is analysed.
  • Paste the raw HTML source. Relative paths may not resolve correctly without the original base URL.
  • Checks language code validity, self-referential tags, x-default, and reciprocal tag consistency.
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Questions & answers

Frequently asked

Does Hreflang Tag Checker upload my data?

Your file or text is processed in your browser and is not uploaded.

What does Hreflang Tag Checker check?

It produces a hreflang audit report with language map and issue list. Checks language code validity, self-referential tags, x-default, and reciprocal tag consistency.

Does this replace Google Search Console?

No. This tool reads static HTML and provides a quick informational check. For authoritative indexing data and crawl reports, use Google Search Console.