Why this dimension exists
Language and region markup decides which language market a page can be retrieved in at all.
Why it carries 3%
Low for a single-market site, and the first thing to fix if you serve more than one language.
The rules it is scored by
Each rule is a single question the scanner asks about a page. Passing one adds its share of this dimension; failing it takes that share away. Every rule links to what it looks for and what evidence passes it.
- At least 2 distinct hreflang language codes are declared. Repeated attributes for the same language do not count, and x-default is a default marker rather than a language, so a single-language site declaring `en` plus `x-default` does not satisfy this.2.0%
- A language tag carrying a region subtag appears in <html lang>, in og:locale or in an hreflang attribute - for example en-GB, en_GB or de-AT. A bare language such as "en" does not satisfy this; that is what html-lang checks.1.0%
What this dimension cannot tell you
A single-URL scan reads one page. It cannot see the rest of the site, it cannot see how a model behaves over time, and it cannot see whether the page is actually cited for the queries that matter. Those are the parts of the picture a score of this kind is blind to, and they are listed in full on the methodology page rather than implied here.