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Meta Checker

Paste a page’s HTML (or just the <head> section) to audit key meta tags: title, meta description, robots, canonical, viewport, charset, Open Graph, and Twitter tags. This tool works offline in your browser—no fetching URLs—so it’s fast and privacy-friendly.

Category: SEO · URL: /tools/meta-checker.html
Used only for local checks (e.g., canonical absolute/relative). No network requests.
Report
Paste HTML and click Check meta tags.
Notes: Title/description length checks are guidelines and can vary by device, query, and pixel width.
Privacy: runs locally in your browser. No uploads, no tracking scripts.

How to use

What to paste: full HTML, or just the <head>...</head> section. The tool parses what you provide and reports what it finds.

  1. Paste HTML into the input box.
  2. (Optional) Enter the page URL to help validate whether your canonical is absolute and matches the page.
  3. Click Check meta tags.
  4. Review warnings for missing/duplicate tags and common SEO formatting issues.
  5. Use Copy report to share results.
Keywords this page targets (natural cluster): meta checker, meta tag checker, title tag checker, meta description checker, robots meta checker, canonical tag checker, check canonical url, check meta robots noindex, meta tags audit, seo meta audit, html head checker, check missing meta tags, detect duplicate meta description, detect multiple title tags, title length checker, meta description length checker, serp title length, serp description length, open graph meta checker, og:title checker, og:description checker, twitter card meta checker
Secondary intents covered: Check whether a page has a meta description and what it says, See if the title tag is missing, duplicated, or unusually long/short, Confirm whether a page is set to noindex or nofollow, Verify the canonical URL exists and is formatted correctly, Detect multiple canonical tags or conflicting canonicals, Extract Open Graph tags for social previews, Extract Twitter Card tags for social previews, Spot missing viewport or charset tags that affect rendering, Find duplicate meta tags that can confuse crawlers, Quickly copy a clean report to share with a client/developer, Audit a pasted head snippet without needing the full HTML, Check for meta refresh redirects, Validate that canonical is absolute (not relative) and not empty, Check for “noindex” accidentally present on production pages, Compare robots directives across multiple meta robots tags, Review basic SEO head checklist before publishing, Identify missing OG image or OG title for link sharing, Sanity-check metadata after a CMS/theme change

FAQ

Can I paste just the <head> section instead of full HTML?

Yes. Pasting only <head>...</head> (or even a snippet containing meta tags) is enough. The checker wraps fragments so it can parse them reliably.

Why can’t I enter a URL to scan my page automatically?

This tool does not fetch URLs. It runs fully in your browser (no network calls) for speed and privacy. View your page source, copy the HTML (or the head), then paste it here.

What title length is considered “good”?

There isn’t a single perfect number. A common guideline is roughly 50–60 characters, but real truncation depends on pixel width, device, and query. Use the tool’s label as a hint, not a hard rule.

What meta description length should I aim for?

Descriptions can be rewritten or truncated by search engines. A common guideline is around 120–160 characters. Focus on clarity and intent matching first, then adjust length if it’s obviously too short or too long.

The report says “multiple meta descriptions” — is that bad?

Usually, yes. Multiple <meta name="description"> tags can lead to unpredictable results. Keep one and remove duplicates created by templates, plugins, or CMS fields.

What does it mean if robots contains noindex or nofollow?

noindex suggests the page should not appear in search results. nofollow suggests links on the page should not be followed. If you see these on important pages, double-check your CMS settings and deployment environment.

My canonical is relative (like /page). Is that okay?

It can work, but an absolute canonical is generally safer and clearer. If you paste a Page URL, the tool will resolve relative canonicals to show the absolute result.

Why does the tool warn that the canonical doesn’t match the Page URL I entered?

Sometimes that’s intentional (canonicalizing duplicates). Other times it’s a mistake (wrong environment, wrong domain, trailing slash issues, parameters). Treat it as a prompt to confirm your intent.

Does this tool check HTTP headers like X-Robots-Tag?

No. Because it doesn’t fetch the page, it can’t inspect response headers. It only checks what you paste (HTML meta and link tags).

What social tags does it check?

It extracts common Open Graph tags (og:title, og:description, og:url, og:image) and common Twitter tags (twitter:card, twitter:title, twitter:description, twitter:image).

What if my HTML is minified or messy—will it still work?

Usually, yes. The browser’s parser is tolerant. If tags are malformed (missing quotes, broken attributes), the checker may miss them—fix the markup and run it again.

Can I use this to compare multiple pages’ meta tags?

Not in one run. For comparisons, run each page separately and copy the report for side-by-side review.