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Free Meta Tag Validator and checker: audit SEO, Open Graph and Twitter/X Card tags from any URL or pasted HTML, get a score, and preview social shares.
Audit SEO, Open Graph, Twitter/X, and technical metadata
Nothing to validate yet
Fetch a public URL or paste HTML to inspect SEO metadata, Open Graph, Twitter/X cards, canonical URLs, robots directives, structured data, and technical tags.
Meta Tag Validator audits the metadata of a webpage from a live URL or pasted HTML. It checks SEO metadata, Open Graph properties, Twitter/X Card fields and technical tags such as viewport, charset, language, favicon, robots, canonical, structured data and hreflang. Results are scored and grouped by severity with actionable fixes, social previews show how links may appear when shared, and you can copy the report as Markdown or download it as JSON.
What you get with Meta Tag Validator.
Over 30 checks across SEO, Open Graph, Twitter/X, and technical metadata, each with a clear pass, warning, or error result.
Inspect Google-style search, Facebook/Open Graph, and Twitter/X Card previews built from your metadata, with realistic truncation and image ratios.
See the detected value, understand the issue, and get a practical recommendation for fixing it. Filter by category or severity.
Fetch metadata from a public URL, or paste HTML directly for local, staging, private, or development pages. Pasted HTML never leaves your browser.
Copy the full audit as Markdown for tickets and pull requests, or download it as JSON for your own tooling.
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Common questions about Meta Tag Validator.
It checks important metadata in a webpage's HTML, including the title, meta description, canonical URL, robots directives, Open Graph properties, Twitter/X Card properties, viewport, charset, document language, favicon, structured data, and hreflang annotations.
1200×630 pixels is a common Open Graph image size because it uses a 1.91:1 aspect ratio. Other platforms and card formats may prefer different proportions, so design the image with the intended sharing surfaces in mind.
Open Graph metadata provides explicit information for link previews, including the page title, description, image, URL, and content type. Without it, a platform may have to guess this information from the page.
Twitter/X Card metadata describes how a URL can be represented when shared on X. Common properties include twitter:card, twitter:title, twitter:description, twitter:image, and optional account or image metadata.
No. The tool validates the metadata present in the HTML and shows an approximate preview. Search engines, social networks, messaging apps, device sizes, crawlers, and caching all affect the final result.
The score summarizes the individual check results. Errors have the greatest impact, warnings have a smaller impact, and informational findings are not counted as failures. It is a diagnostic indicator for this tool, not an official search-engine ranking score.
Yes. Switch to HTML input mode and paste the page HTML or its head section. This works for local development, staging, templates, generated HTML, and pages that can't be accessed publicly. Include the html tag if you also want the language attribute checked.
Some sites block automated requests, require a login, or time out. If a fetch fails, open the page source in your browser, copy the HTML, and use Paste HTML mode instead.
This Meta Tag Validator audits the Open Graph and meta tags on your page, scores them and previews how they may look when shared. It also works on pasted HTML before you publish. It does not query Facebook, so it cannot clear Facebook's cached copy of a link; use Facebook's Sharing Debugger for that after you fix your tags.
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