Checks / Links, canonical and speed
The home address changes language with the visitor's browser
The same address answers in different languages depending on Accept-Language and does not redirect. Crawlers send no language, so they see one version, and engines index a language that may not be the one a person was meant to get.
locale_adaptive_home · Links, canonical and speed · Notice
What to change
Serve each language at its own address (/fr/, /es/) and, at most, redirect from / to it once; give / one language.
How common it is
We have not measured how common this is on a sample of sites. Counts appear here when a study covers it.
About this check
| Check ID | locale_adaptive_home |
|---|---|
| Report section | Links, canonical and speed |
| Severity | Notice |
| How it is decided | Measured: read directly from the page or the server's response. |
| Added | Before 19 Oct 2026 (versions 1 and 2), or a site-wide check with no version date yet |
| Status | Measured in every report |
| Report gives the code | No, the fix is described in words |
Related checks
- Broken internal links
- Canonical points to a broken or redirecting URL
- Redirect loop
- Canonical points to a noindex page
- Canonical points to another page
- Pages refuse or do not answer our crawler
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