Meta Tag Analyzer
Audit any page's meta tags — title, description, canonical, Open Graph, Twitter Cards, and structured data — with an SEO score and actionable fixes.
Analyze a Page
Enter a URL to fetch it, or paste raw HTML source.
By Vizo ToolLast updated August 20265 min read
Meta Tag Analyzer — Audit Any Page's SEO in Seconds
The Meta Tag Analyzer inspects a page's head — title, meta description, canonical, robots, Open Graph, Twitter Cards, viewport, charset, and JSON-LD structured data — and tells you what's missing, duplicated, or wrong.
Paste a URL and fetch the page, or paste raw HTML source directly. You'll get a clear 0–100 SEO score, a list of missing and duplicate tags, and prioritized improvement suggestions. Everything is analyzed in your browser.
- URL or HTML source input
- Title, OG & Twitter audit
- Structured data detection
- 0–100 SEO score
Why Use Meta Tag Analyzer?
Instant SEO Health Check
A 0–100 score breaks down your page's on-page SEO into one clear number.
Missing & Duplicate Detection
Finds absent title, description, canonical, OG tags — and duplicate tags that confuse crawlers.
Structured Data Scan
Detects JSON-LD and microdata blocks and reports which schema types are present.
Actionable Suggestions
Each issue comes with a concrete fix — not just a red flag.
Features
URL or HTML Input
Analyze a live URL (fetched through a public CORS proxy) or paste raw HTML for offline pages.
Title & Description Audit
Checks presence, length, and keyword placement with warnings for truncation risk.
Canonical & Robots Check
Verifies canonical consistency and flags noindex directives that might be blocking indexing.
Open Graph & Twitter Audit
Reports each og:/twitter: tag and marks missing ones that hurt social shares.
Structured Data Detection
Lists all JSON-LD and microdata schema types found on the page.
SEO Score & Report
A weighted score with a full checklist of passed and failed checks.
How to Analyze Meta Tags
Audit any page's SEO head in three simple steps.
Enter a URL or HTML
Paste a page URL to fetch it, or paste raw HTML source directly into the analyzer.
Run the analysis
Click Analyze and the tool inspects title, description, canonical, OG, Twitter, and structured data.
Review the report
Read the score, the missing/duplicate tag list, and the prioritized suggestions — then fix and re-run.
Frequently Asked Questions
Got questions? We've got answers.
What is a meta tag analyzer?▼
A meta tag analyzer reads a page's head tags and reports which SEO tags are present, missing, or duplicated — with a health score and improvement tips.
What does the SEO score mean?▼
The score (0–100) weighs critical tags like title, description, canonical, and OG tags — 90+ is great, under 60 means important tags are missing.
How do I analyze a page I don't own?▼
Paste the URL and the tool fetches it through a public CORS proxy, or paste the HTML source you can view with View Source in your browser.
Why can't the tool fetch some URLs?▼
Sites with strict CORS policies or bot protection may block proxy fetches. Paste the HTML source directly instead — it always works.
What are duplicate meta tags?▼
Duplicate tags appear when a page outputs the same tag twice (e.g. two meta descriptions). Duplicates confuse crawlers and can cause the wrong one to be used.
What is a canonical URL and why does it matter?▼
A canonical tag declares the preferred URL of a page, preventing duplicate-content issues. Missing canonicals can split ranking signals across similar URLs.
Is the meta tag analyzer free?▼
Yes, it's completely free with no sign-ups, no watermarks, and no usage limits.
Does the analyzer check structured data?▼
Yes — it detects JSON-LD and microdata blocks and reports the schema types found (Article, FAQ, Product, etc.).
Can I analyze a local file or draft page?▼
Yes — export your page's HTML or paste the source into the analyzer to check it before it goes live.
What is viewport and why is it checked?▼
The viewport meta tag controls responsive scaling on mobile. It's not an SEO ranking factor, but its absence breaks mobile usability, which Google penalizes.
What does a missing robots tag mean?▼
It usually means the page defaults to index,follow — which is fine. The analyzer flags a robots tag only when it contains restrictive directives like noindex.
Are the pages I analyze stored anywhere?▼
No — analysis happens entirely in your browser. Nothing you paste or fetch is ever uploaded or stored.
What's the difference between OG and Twitter tags?▼
OG tags control Facebook/LinkedIn/WhatsApp previews; Twitter tags control X. The analyzer checks both and flags missing ones.
How often should I audit my pages?▼
After every significant redesign or content update, and quarterly as a routine check. Automated site crawlers are better for hundreds of pages.
Does the analyzer work on mobile?▼
Yes, it's fully responsive and works on desktop, tablet, and mobile browsers.
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