Meta Tag Checker — Free SEO Meta Tag Analyzer & Open Graph Checker

Meta Tag Checker — Free SEO Meta Tag Analyzer & Open Graph Checker. Free meta tag checker. Instantly analyze meta title, meta description, Open Graph, and Twitter Card tags from any URL or HTML.

Html Mode is parsed in your browser; Url Mode fetches the page through a third-party proxy. Meta Tag Checker is a focused online SEO utility.

Main purpose: Instantly extract and audit meta title, meta description, Open Graph data, and Twitter Card tags from any URL or HTML snippet.

It is useful for SEO audits, social media preview verification, landing page optimization, and technical SEO debugging where you need to confirm exactly what tags a page exposes to search engines and social platforms.

The page keeps the workflow direct, with two input modes — URL fetch and HTML paste — and a clear results table plus visual social preview.

A practical SEO audit workflow Start with a URL or paste your page's HTML head section, review the extracted tags in the structured table, check the SEO audit alerts for missing or over-length title and description tags, and confirm the social preview card before publishing.

This simple flow prevents common SEO mistakes: missing meta descriptions, over-length titles that get truncated in search results, missing og:image tags that produce blank social shares, and incorrect canonical URLs that create duplicate content issues.

How to use it Enter a live URL to fetch the page through the third-party CORS proxy api.allorigins.win, which receives the address you enter, and extract all meta tags automatically, or switch to HTML mode to paste a snippet of your page's head section for instant offline analysis.

The tool extracts standard HTML meta tags, all OpenGraph properties, and Twitter Card meta tags in one pass, then displays them in a clean table alongside an SEO audit panel with clear warnings.

Open Graph and Twitter Card support Correct Open Graph and Twitter Card tags determine how your pages look when shared on Facebook, LinkedIn, Twitter, and other platforms.

Missing og:image means a blank card; a missing twitter:card type means the platform falls back to a plain link. Our tool validates these tags and shows a live visual preview of the social card so you can fix issues before the link goes live.

SEO audit alerts The tool checks for the most impactful on-page SEO issues: missing title tag, title over 60 characters (which gets truncated in Google results), missing meta description, description over 160 characters, and missing og:image.

Each alert is color-coded as an error or warning so you can prioritize fixes correctly. No issues found means your basic meta tags are in order. Related document tools For adjacent tasks, try Meta Tag Generator , HTML Formatter , HTTP Headers Parser .

These tools help you generate, format, and inspect the technical layer around meta tags in the same toolbox.

Frequently asked questions

How do I check the meta tags of a web page?

In Url Mode, type the full address, for example https://example.com, and click Analyze or press Enter. The Extracted Tags table lists every meta tag found, the SEO Audit card flags problems, and the Social Preview shows roughly how the link looks when shared.

Does Url Mode send the address to a server?

Yes. Browsers cannot read other websites directly, so Url Mode fetches the page through the third-party proxy api.allorigins.win, which receives the URL you enter. Html Mode fetches nothing: pasted HTML is parsed locally in your browser. In both modes the preview image is loaded from its own URL.

When should I use Html Mode instead?

Use Html Mode for pages behind a login, local or staging sites, pages the proxy cannot reach, or HTML you have not published yet. Paste the page source, or just its head section, into the box and click Analyze.

What does the SEO Audit check?

It reports an error for a missing title or meta description, a warning when the title is longer than 60 characters or the description longer than 160 characters, and a warning when og:image is missing. If none of these apply you see No major issues found.

Why does the URL check fail or miss some tags?

The proxy may be unavailable or blocked by the site, and it returns the raw HTML without running JavaScript, so tags added client-side by frameworks are not seen. In that case copy the rendered head from your browser's developer tools and use Html Mode.

Which tags does the social preview use?

The title comes from twitter:title, then og:title, then the page title, and the description follows the same order. The image comes from twitter:image or og:image and the domain line from og:url. It is an approximation, not an exact copy of any platform's card.

How to use this online tool

Meta Tag Checker — Free SEO Meta Tag Analyzer & Open Graph Checker is designed for fast browser workflows when you need to format, validate, convert, decode, encode, generate, or inspect data without opening a heavy desktop app. Start with the input field or visible options, review the result, then copy or download the output for the next step.

Private processing in your browser

Meta Tag Checker — Free SEO Meta Tag Analyzer & Open Graph Checker keeps the normal processing step local in your browser. That is useful for code snippets, tokens, documents, configuration values, text samples, and other material that should not be sent to a remote service unless you explicitly choose to share it. Features that need an outside source, such as loading a web page from a URL, a YouTube image or an online voice, contact that service only when you use them.

When this tool is useful

Use Meta Tag Checker — Free SEO Meta Tag Analyzer & Open Graph Checker for repeatable developer tasks, technical documentation, QA checks, quick conversions, debugging, content cleanup, and internal team workflows. The page focuses on clear inputs, immediate feedback, and output that is easy to reuse in code, reports, tickets, emails, or notes.

Practical tips

Before copying the final result, check important details such as spacing, casing, filenames, encoding, token structure, line breaks, or output format. Small checks prevent mistakes when the result is reused in source code, API requests, documentation, spreadsheets, or shared files.