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seo/duplicate-title · Duplicate title

Each route should have a unique <title>.

Severity: warning

What it checks

Flags two or more routes whose static <title> text is identical (after trimming and collapsing whitespace). Routes whose title is dynamic or absent are not checked.

Why it matters

Duplicate titles across pages make them compete in search results and weaken each page’s relevance signal.

How to fix

<svelte:head>
  <title>About our team — Acme</title>
</svelte:head>

Mode differences

Source analysis (the CLI, the dashboard’s static baseline) composes each route’s <head> from <svelte:head> in the page and its layout chain, followed into repo-local components, plus the known meta components (svelte-meta-tags, svelte-seo) and any you declare in metaComponents. It judges only a literal value; it never examines a dynamic one. Rendered analysis (the Vite plugin’s build pass, a route you visit in the dashboard) reads the shipped <head>, where every value is literal; the build pass covers prerendered routes only. --route narrows the comparison to the matched routes; the build pass compares the prerendered routes. The dashboard’s live layer leaves this rule to the static baseline, since one page’s head has nothing to compare against. When the two disagree, trust the rendered result.

Disabling

Record existing findings in the suppressions file (npx svelte-vitals --update-suppressions), scope the rule per route or path with overrides, or turn it off:

export default {
  rules: {
    'seo/duplicate-title': 'off'
  }
};