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Rule · Localization

Localized pages canonicalize within their language

SEO-I18N-06C2 Recommended· w4

Class
C2 Recommended
Weight
4
Severity on fail
major
Applies to
Google

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Scope and evidence

Evaluated on pages in P with annotations and a head canonical. The book marks this requirement DOCUMENTED RECOMMENDATION, SEARCH-ENGINE-SPECIFIC.

Fail conditions

Each condition has a stable code and a reason template. The evaluator fills the placeholders from observed values only; no sentence in a report is generated.

  • cross_language_canonical

    {url} ({lang}) declares {canonical} ({other_lang}) as canonical. Google recommends specifying a canonical page in the same language, or the best possible substitute language.

The documented fix

Make each localized page self-canonical.

Sources, quoted

These are the passages the rule rests on, stored once in the knowledge base and emitted exactly as written. A citation marked for specific conditions appears only on findings with those codes.