SEOmediummeta-tags
Avoid duplicate meta descriptions
rule · duplicate-description
Every page should tell search engines and users what makes it unique. When multiple pages share the same meta description, Google's snippet guidance (opens in a new tab) often leads Google to rewrite the snippet, creating the same ambiguity you see when titles are not unique sitewide.
Code Examples
❌ Avoid — same description on every page
HTML
<!-- Homepage -->
<meta name="description" content="Acme Corp — Building better products.">
<!-- /products page — duplicate! -->
<meta name="description" content="Acme Corp — Building better products.">
<!-- /contact page — duplicate! -->
<meta name="description" content="Acme Corp — Building better products.">✅ Correct — unique description per page
HTML
<!-- Homepage -->
<meta name="description" content="Acme Corp builds enterprise project management software trusted by 10,000+ teams.">
<!-- /products page -->
<meta name="description" content="Explore Acme's suite of project tools: time tracking, Kanban boards, and automated reporting.">
<!-- /contact page -->
<meta name="description" content="Get in touch with the Acme Corp sales and support team — we respond within one business day.">✅ Dynamic generation in Next.js
TypeScript
// app/products/page.tsx
export const metadata = {
description: 'Explore Acme\'s suite of project tools: time tracking, Kanban boards, and automated reporting.',
}Why It Matters
- Snippet quality: Google uses the meta description as the search snippet when it considers it relevant. Unique descriptions mean more useful snippets, and MDN's description-meta reference (opens in a new tab) is a good baseline for validating the rendered tag.
- Click-through rate: A description tailored to the page's content matches user intent and earns more clicks.
- Crawl signals: Identical descriptions across pages suggest thin or duplicate content, which can suppress rankings and usually needs the same per-route treatment as meta-title generation.
What to Check
Crawl the site and collect all <meta name="description" content="..."> values. Group by content value; any group with more than one URL is a violation.
Also flag descriptions that:
- Are identical to the homepage description
- Match the site tagline verbatim
- Are left as a CMS template placeholder
How to Fix Duplicates
- Run a site crawl with Screaming Frog (opens in a new tab), Sitebulb, or Google Search Console's Page Indexing report to identify duplicates.
- Export the list of affected URLs and their shared descriptions.
- Write a unique, page-specific description for each URL (50–160 characters).
- Update your CMS, template, or code to inject these per-page values.
- Re-crawl after deploying to confirm all duplicates are resolved.
Exceptions
- Utility or intentionally noindex pages may keep minimal metadata when richer search presentation is not a goal.
- Template-driven pages can look repetitive in isolation; confirm the fully rendered production output before flagging duplication or omission.
- If a page is intentionally redirected or excluded from indexation, resolve that crawlability decision before treating metadata polish as the primary issue.
Standards
- Use these references as the standard for the final search-facing HTML, metadata, and crawl behavior.
- Check the implementation against Google Search Central: Snippet best practices before treating the rule as satisfied.
- Check the implementation against MDN: meta element name attribute — description before treating the rule as satisfied.
Verification
Automated Checks
- Inspect rendered HTML and HTTP headers to confirm the expected metadata or crawlability signal is present.
- Test the affected URL with Google Search Console or equivalent tooling where relevant.
- Re-crawl a representative page set after deployment.
Manual Checks
- Confirm the change does not create conflicting canonical-url, robots, or structured-data signals.