Check your Meta
Audit meta tags, Open Graph, Twitter cards, canonical, hreflang, and structured data — with live Google, Twitter/X, Facebook and LinkedIn previews. Free forever.
How to use checkmymeta.app
Four steps to a full SEO audit.
Paste a URL or HTML
Analyze a live page by URL (fetched via CORS proxy) or paste raw HTML directly — useful for staging / localhost pages.
Click Analyze
We parse with DOMParser (not regex), extract every meta tag, and score your page against SEO + social-share best practices.
Review the preview cards
See exactly how your page renders on Google desktop, Google mobile, Twitter/X, Facebook, and LinkedIn — with accurate pixel widths.
Fix or export
Actionable findings show what to fix (and how). Export the full audit as JSON or a shareable markdown report.
Everything SEO tools charge $49/mo for — free
Title & description scoring
Character count AND pixel-width measurement (Google actually truncates by pixels, not chars).
5 live previews
Google desktop, Google mobile, Twitter/X, Facebook, and LinkedIn rendered with accurate dimensions.
Full technical audit
Canonical, robots, viewport, charset, hreflang, html lang, favicons, H1 count, structured data.
100% private
Everything runs in your browser. We never store URLs, HTML, or results.
Building a full site-audit workflow?
After you fix your meta tags, test the rest of your SEO stack. These are free too.
What a meta tag analyzer actually checks
Your meta tags are the first thing search engines and social platforms read. When they're wrong or missing, your page either doesn't rank, gets an ugly SERP snippet, or looks broken when someone shares it on Twitter or LinkedIn. A meta tag analyzer pulls your tags apart and tells you exactly what's missing, what's too long, and what will break the first time a crawler hits your URL.
Title and meta description — pixels matter more than characters
Most SEO checklists tell you to keep your title under 60 characters. That's not how Google actually works. Google truncates on pixel width, not character count. A title of 60 Ws will get cut off long before a title of 60 is. Our tool measures the actual pixel width using a canvas and Arial 16px — the same font Google uses on desktop — so you know exactly when your title will be truncated.
Same logic for meta descriptions: Google typically cuts them at around 158 characters on desktop and 120 on mobile, but pixel width is the real constraint.
Open Graph and Twitter Cards are different
Facebook, LinkedIn and iMessage all use og:* tags. Twitter prefers its own twitter:* tags but falls back to Open Graph if they're missing. LinkedIn specifically uses og:image but needs it to be at least 1200×627. We render what your link will actually look like on each platform so you catch it before you ship.
Technical SEO: canonical, robots, hreflang
Canonical tags tell Google which version of a page is the "real" one. A missing canonical on a page with query parameters can split your ranking across dozens of URLs. robots meta and hreflangare smaller but can silently destroy traffic when they're wrong — a noindex robots tag from a CMS default will drop a page out of Google entirely.
Structured data is free SERP real estate
JSON-LD structured data (Schema.org) is how you get review stars, FAQ accordions, and breadcrumbs in your Google snippet. These rich results typically lift CTR by 20-35%. We detect every JSON-LD block on your page and tell you what types you have.
Go deeper
Read our guides for the full breakdown: