SEO014 · Viewport
Severity: warning
What it checks
Section titled “What it checks”Every route must expose a <meta name="viewport"> tag (usually set once in app.html). A missing tag is flagged. Because the viewport tag normally lives in app.html — which static (CLI) mode does not resolve — this rule is evaluated in plugin/rendered mode only.
Why it matters
Section titled “Why it matters”Without a viewport meta tag the page is not mobile-responsive, which Google penalizes under mobile-first indexing.
How to fix
Section titled “How to fix”Add the viewport meta tag, typically in src/app.html:
<meta name="viewport" content="width=device-width, initial-scale=1" />