Validate a page-level hreflang annotation set

Paste link tags or rows in language | absolute URL format. This checks local syntax, duplicates, URLs, x-default and optional self-reference; it cannot verify reciprocal tags on remote pages.

Hreflang tags or rows

Current page URL (optional)

—Annotations

—Unique codes

—Errors

—Warnings

Language-tag syntax here is a practical structural check, not a full BCP 47 registry validator. Alternate pages also need reciprocal annotations.

Browser-local technical SEO workflow

v10.80 connects metadata, SERP drafting, robots, canonical, hreflang, sitemap and structured-data jobs without requiring an account or sending pasted source to a backend. Existing v5.9/v10.0 SEO generators remain intact while new inspectors make it easier to review a finished head or annotation set.

Search-engine boundaries

Local markup checks cannot know what a crawler fetched, rendered, indexed or selected as canonical. Search engines may rewrite title links/snippets, choose different canonicals, ignore invalid or ineligible structured data, and apply live HTTP/robots conditions that are not present in pasted text. Treat these tools as pre-publish QA, then verify live behavior with the relevant search-engine tools.

How to use this Hreflang Validator

Validate pasted hreflang link tags or language/URL rows for syntax, duplicates, absolute URLs, x-default, and self-reference.

Enter, paste, upload, or choose the inputs shown in the tool above.
Adjust the available options for the result you need.
Review the output before copying, downloading, or using it elsewhere.

What this tool does

Check a page-level hreflang annotation set locally; reciprocal validation still requires checking the alternate pages themselves.

Practical tips and limits

Generated markup and metadata should describe content that is actually present on the page. Search engines decide eligibility and presentation independently.