Indexation Validator
Hreflang Checker
Validate the hreflang annotations a page already ships with, from the live source page or pasted HTML.
Source Hreflang Checker, pulled .
Use notes
v1 checks only the alternates declared on the source page, caps reciprocal fetches at 12, and returns warnings instead of crashing on unreachable or non-HTML alternates.
Input
What this checks
- Invalid hreflang codes and duplicate locale annotations
- Missing self-referencing hreflang entries
- Missing reciprocals on explicitly declared alternates
- Canonical mismatches on the source page and fetched alternates
- Graceful handling for unreachable or non-HTML alternates