On-page SEO check
The document declares its language
The html element carries a valid BCP 47 language tag.
low severitypage.lang
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Runs just this check in quick mode. The report opens with the evidence and the fix.
Why it matters
The language tag lets search engines target the right locale and lets screen readers pick the right voice.
How to fix it
Add a lang attribute to the html element, for example lang="en" or lang="de".
The details
- Category
- On-page SEO
- Severity of a failure
- low
- Confidence
- high
- Needs a browser
- No
- Check id
- page.lang
References
Free tools that run this check
SEO CheckerFind the technical problems that keep a page out of search results. The checker reads the page the way a search crawler does and lists what to fix first, with the evidence behind every verdict.Meta Tag CheckerSee the title and description a search engine reads, how the result could look, and whether the canonical, robots, viewport and language tags are set correctly.Hreflang Checkerhreflang tells search engines which language version of a page to show to whom. Check the codes, the self reference and the x-default before the wrong version shows up in the wrong country.Accessibility CheckerFind the accessibility problems that automated testing can catch reliably: missing labels, unnamed buttons, broken ARIA, missing landmarks and text that is hard to read.