Example
Checklist + extracted values
Meta Tag Analyzer
Parse the title, meta description, and key meta tags from any page HTML instantly in your browser. Free online SEO meta tag analyzer.
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Page HTML — enter a value. A typical Page HTML would be Paste the <head> and page HTML here….
- Review your results — the key output is highlighted, with supporting figures below.
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Results
Meta checks
| Detail | Value |
|---|---|
| Title | |
| Meta description | |
| Canonical | |
| Title length (chars) | |
| Description length (chars) |
What is this calculator for?
Extract and audit the most important on-page SEO meta signals from any HTML document.
How to Use This Calculator
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Page HTML — enter a value. A typical Page HTML would be Paste the <head> and page HTML here….
- Review your results — the key output is highlighted, with supporting figures below.
What You'll Need
- Page HTML
- a value · required
About This Calculator
Paste a page’s HTML and this meta tag analyzer extracts the title, meta description, viewport, canonical URL, Open Graph tags, robots directives, H1, language attribute, and image alts.
Each signal is validated against SEO best practices and reported in a single checklist, alongside the raw extracted values. Length guidance follows common search-result limits (~60 chars title, 70–160 description).
Parsing runs entirely in your browser.
Worked Examples
Frequently Asked Questions
Does this replace an SEO audit tool?
No — it covers on-page meta signals only. Off-page factors (backlinks, authority) and rendering-based SEO (JavaScript content, Core Web Vitals) need other checks.
Why is the description length guidance 70–160?
Descriptions under ~70 characters show truncated text and less keyword context; over ~160 characters risk being cut off in SERPs, so this range is the safe target.