How to use Hreflang Cluster Auditor
- Enter each page URL and its extracted alternate-language links.
- Include target pages when their return declarations are available.
- Review the language labels and missing-reference findings, then download the cluster data.
Example: Hreflang Cluster Auditor
Check language alternates for missing return references, repeated language labels and unavailable target evidence.
You add
Page alternate declarations (JSON): "[\n {\n \"url\": \"https://example.test/en\",\n \"alternates\": [\n {\n \"lang\": \"en\",\n \"url\": \"/en\"\n },\n {\n \"lang\": \"fr\",\n \"url\": \"/fr\"\n }\n ]\n },\n {\n \"url\": \"https://example.test/fr\",\n \"alternates\": [\n {\n \"lang\": \"fr\",\n \"url\": \"/fr\"\n }\n ]\n }\n]"
You get
2 pages; 3 alternate references; 1 findings.
Options
- Alternate evidence
- An unentered target remains unknown. It is not assumed to contain a reciprocal link.
- Language labels
- The limited syntax check accepts simple language/region forms and x-default. It does not establish that a code or translation is correct.
Supported inputs and limits
Up to 500 pages, 100 alternates per page and 5,000 references. Supplied data only; no live status, content-language detection, translation-equivalence check or indexing promise.
Where your input is processed
This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.
Reciprocity is only one part of a language cluster
A return link can exist even when two pages are not equivalent translations. Compare actual content and live response behavior separately. Keep page URLs with the exported edges so the observed declarations can be checked again when a cluster changes.
Questions about Hreflang Cluster Auditor
Is x-default a language?
It is treated as a fallback label in the supplied declarations.
Does a missing return mean the live page is wrong?
The target evidence may be incomplete; check or supply its declarations.
Are language codes certified?
No. The report reviews a limited syntax subset without validating every code.