Hreflang Tag Checker
International SEO breaks easily when hreflang tags are inconsistent. This checker extracts alternate tags from a page and flags invalid language codes, duplicate values, missing self-references, and missing x-default.
Simple workflow
How to use it
Follow the steps in order, then use the results to make a focused SEO improvement.
Enter page URL
Paste the localized page URL you want to audit.
Check alternates
Review all hreflang values and alternate URLs found on the page.
Fix hreflang gaps
Add missing self-references, x-default tags, or valid language-region codes where needed.
Related glossary terms
Want a deeper dive? These glossary entries explain the concepts behind this tool.
Frequently Asked
Questions
Everything you need to know about hreflang tag checker and technical SEO.
The Hreflang Tag Checker helps SEOs diagnose a specific technical SEO workflow directly in the browser. It is built for quick audits, QA checks, and pre-publish validation.
Yes. The tool is free to use on SERPView with no signup required. URL-fetching tools use conservative limits to keep checks fast and respectful.
No. The tool fetches the URL for the current analysis and returns the result. We do not store page content or use checked pages for training.
Use it during technical SEO audits, site launches, migrations, content QA, or whenever a page behaves differently than expected in search.
No. It is a focused free check for one workflow. For large sites, use it alongside a crawler and Google Search Console to prioritize fixes.
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