Validate hreflang pairs
Check reciprocal hreflang pairs in a supplied page set.
Local processing · Nothing is uploaded · 1 MB input limit
Input & settings
Ready. Enter your input to begin.
How to use this tool
Enter your own site data. Process and inspect the generated result before adding it to your website.
Limits and behavior
Checks self references, reciprocal targets, language consistency and complete supplied page set. Does not fetch pages or detect actual page language. Maximum total input 1 MB, output 3 MB, JSON nesting 64 levels. Processing stays in your browser worker. Input is limited to 1 MB and output to 3 MB. No input content is saved by CraftAI.
Check reciprocal hreflang references
Evaluate whether listed localized pages point to one another through supplied alternate-language mappings.
Does valid hreflang automatically translate a website?
No. Hreflang only describes alternates; pages must have appropriate localized content.
Related tools: generate hreflang tags · generate canonical tag