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Free Meta Checker

Free Meta Checker for SEO Tags

Validate meta tags, check SEO meta tags, catch meta noindex and canonical issues, and review Open Graph, Twitter cards, structured data, and llms.txt in one free scan.

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meta robotsreview
x-robots-tagfound
canonicalaligned
og:imagereview

Indexing risk

Meta robots, X-Robots-Tag, canonical alignment, and redirect checks.

Search metadata

Title, description, H1, and JSON-LD validation for search results.

Social previews

Open Graph, Twitter/X card coverage, and og:image quality signals.

AI discovery

llms.txt, structured data, and machine-readable context for AI tools.

What this tool checks

Core search, indexing, social preview, and AI-discovery signals in one pass.

<title>

Page Title

Shown in SERP, browser tab, and social card headline. Google may rewrite it if missing or over 60 characters.

<meta name="description">

Meta Description

Controls the SERP snippet text. Not a ranking factor, but a well-written description directly lifts click-through rate.

<link rel="canonical">

Canonical URL

Tells Google the authoritative version when near-duplicate URLs exist — e.g. with and without trailing slash.

<meta name="robots"> / X-Robots-Tag

Indexing Directives

Page-level and header-level index control. A stray noindex or nofollow can quietly block visibility even when the page looks normal in the browser.

og:title / og:image

Open Graph Tags

Required for rich link previews on LinkedIn, Facebook, Slack, and Discord. A missing og:image usually renders as no image.

twitter:card

Twitter / X Card

Enables large-card previews on Twitter and X. Falls back to Open Graph if absent, but explicit tags are more reliable.

JSON-LD / schema

Structured Data

Powers rich results: FAQ dropdowns, article bylines, breadcrumbs, review stars. The checker also flags invalid JSON-LD that exists but cannot be parsed.

llms.txt / ai-meta

AI Discovery

llms.txt presence and machine-readable context for AI search systems that summarize, classify, and cite your page.

Example metadata report

A sample audit for a hypothetical SaaS homepage — showing the mix of passes, warnings, and critical gaps a typical page has.

Scan result — acme.coexample only
titleAcme — Project Management for Teams
pass52 chars — good length
meta descriptionAcme helps engineering teams ship faster…
warn168 chars — will be truncated in SERP
canonicalhttps://acme.co/
passself-referencing canonical present
x-robots-tag(not set)
passno header-level indexing block found
redirect final URLhttps://acme.co/
passno redirect hop before render
og:titleAcme — Project Management for Teams
pass
og:image/og/home
warnrelative URL — social scrapers prefer absolute HTTPS image URL
twitter:card(missing)
warnfalls back to og:image — which is also missing
JSON-LDInvalid JSON-LD detected
failschema block exists but cannot be parsed
llms.txt(not found)
warnAI crawlers have no structured description

Common metadata mistakes

The six issues that show up most often in audits — and that are cheap to fix once you know they exist.

Missing og:image

The most common gap. Every page meant to be shared needs an og:image at least 1200×630 px. Without it, social shares show a blank card.

Staging noindex left on production

A leftover noindex in either the HTML or X-Robots-Tag header stops the page from being indexed even when everything else looks polished.

Canonical pointing to a different URL

A misconfigured canonical silently tells Google to prefer a different page, de-prioritising the one you actually want ranked.

Meta description over 160 characters

Google truncates long descriptions, often cutting off the key message. Keep descriptions between 120 and 155 characters.

Broken JSON-LD script

Some pages ship schema markup that exists in the HTML but fails JSON parsing, which means search systems cannot trust or reuse it.

No llms.txt anywhere on the domain

AI search engines use llms.txt to understand your product. Without it, AI citations rely entirely on whatever the model can infer from raw HTML.

Practical metadata checks for the queries people already use

Short, practical use cases that mirror what the tool actually checks.

Validate meta tags before publishing

The best time to validate meta tags is right before launch, when the live page already reflects production HTML. A preview inside a CMS will not reliably show a stray noindex, a rewritten canonical, a redirect hop, or a missing Open Graph image. This checker is designed for that final pass. It fetches the real URL, reviews the visible title and H1, and checks the search, social, and machine-readable metadata that can quietly break distribution on launch day.

  • Confirm title, description, and H1 match the live page.
  • Catch noindex, redirects, and canonical drift before release.
  • Verify Open Graph, Twitter cards, and JSON-LD in production HTML.

SEO meta tags checker

A useful SEO meta tags checker should do more than list fields. It should show which tags are healthy, which need review, and which can directly hurt indexing. This report covers title, description, canonical, robots, H1, and structured data, then adds context around length, canonical alignment, and header-level directives. It is a fast way to review a page that just lost impressions or is about to be promoted.

  • Review search-facing tags and visible heading structure together.
  • Spot warning states instead of only present or missing fields.
  • Prioritize fixes that affect indexing before cosmetic cleanups.

Meta noindex checker

The quietest SEO bugs are often indexing directives left behind after a migration or staging deploy. A page can render perfectly and still stay out of search because of one `noindex` or `nofollow`. This checker reads both the HTML and the response headers, so it can catch blocks that are easy to miss in a visual review. It also shows the final URL after redirects, which matters when crawlers land somewhere different from the URL you pasted.

  • Inspect `meta robots` and `X-Robots-Tag` in one result set.
  • See whether redirects change the final indexable URL.
  • Flag `noindex` and `nofollow` before they suppress visibility.

Check SEO tags and social preview tags together

Search snippets and social cards create one combined first impression, so it helps to review them together. A page can have a decent title tag and canonical while still looking weak when shared because `og:title`, `og:description`, `og:image`, or `twitter:card` are incomplete. The reverse happens too. This checker lets you compare search-facing tags with social preview tags in one pass and catch mismatches before links start circulating.

  • Compare title and description across search and social surfaces.
  • Confirm `og:image` is absolute, secure, and image-like.
  • Catch preview gaps before campaign links start circulating.

Test metadata for AI search

AI search systems rely on more than title tags alone. They combine classic metadata, structured data, and whatever machine-readable context they can discover across the page and domain. This checker helps by validating JSON-LD, checking for `llms.txt`, and confirming that canonical and robots signals are clean enough for crawlers to trust the page. It is a useful pass for landing pages, docs, and product pages you want ChatGPT or Perplexity to interpret more consistently.

  • Validate structured data instead of assuming schema is usable.
  • Check `llms.txt` presence on the resolved final domain.
  • Keep crawl, search, and AI-facing signals aligned.

Related tools

Stay here for technical metadata. Use the related audits when the problem is page clarity or LLM classification.

AI Landing Page Audit

Checks whether one page communicates product, audience, value, and next step clearly enough.

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LLM SEO Audit

Checks how ChatGPT, Claude, and Perplexity are likely to classify your product content.

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Free AI SEO Tools

Browse the current AISeoLand tool shelf and choose the smallest check for the job.

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Frequently asked questions

What is a meta checker?

A meta checker fetches a live URL and reads its HTML to report on the metadata tags that control how search engines, social networks, and AI crawlers display and index the page.

Does meta description affect Google rankings?

No. Google has confirmed that meta description is not a ranking signal. It does affect click-through rate because Google often uses it as the visible SERP snippet.

What does a canonical tag do?

A canonical (<link rel="canonical">) tells Google which URL is the official version when near-duplicate pages exist — for example, content accessible at both http and https, or with and without a trailing slash.

Why does og:image matter?

When a link is shared on LinkedIn, Facebook, Slack, or iMessage, the platform fetches og:image to build the preview card. A missing og:image produces a card with no image, which typically receives far fewer clicks.

What is llms.txt?

llms.txt is a plain-text file at the root of a domain (e.g. acme.co/llms.txt) that describes the site to large language models. AI search engines like ChatGPT and Perplexity can read it to cite your product more accurately.

Is this tool free?

Yes — no account, no credit card. Paste any public URL and get a full metadata report in seconds.