Meta Tag Analyzer
Paste your page's HTML and get a full audit of your title, description, Open Graph, and Twitter Card tags β with a completeness score.
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What Is a Meta Tag Analyzer?
Meta tags are the pieces of code in a page's <head> section that never appear on the page itself but control how it shows up everywhere else β in Google's search results, in a Facebook or LinkedIn share card, and in a tweet preview. Get them right and your page looks polished wherever it's shared. Leave one out and you get a blank preview image, a truncated headline, or a description Google writes for you instead of the one you wrote.
This tool checks the HTML you paste in against every tag that matters for search and social sharing: the title tag, meta description, canonical URL, viewport and charset declarations, and the full set of Open Graph and Twitter Card tags. Each one is checked individually β present or missing, and if present, whether it's sized the way search engines and social platforms expect. A completeness score sums it all up as a single percentage.
How the Score Is Calculated
Your page is checked across four weighted groups:
| Group | What it checks |
|---|---|
| Core SEO tags (35%) | Title tag, meta description, canonical URL, and meta robots β the tags with the most direct impact on search visibility. |
| Technical tags (15%) | Viewport, character encoding, and the HTML language attribute β foundational tags for mobile rendering and accessibility. |
| Open Graph tags (30%) | og:title, og:description, og:image, og:url, and og:type β control how the page looks when shared on Facebook or LinkedIn. |
| Twitter Card tags (20%) | twitter:card, twitter:title, twitter:description, and twitter:image β control the preview shown when the page is shared on X/Twitter. |
Common Meta Tag Mistakes
The most common issue isn't a bad tag β it's a missing one. Pages frequently ship without an og:image, which means anyone sharing the link on social media gets a blank or randomly chosen preview image instead of one you control. A close second is a title or description that's too long and gets cut off with an ellipsis in search results, wasting the words that would have explained what the page is about.
It's also common to duplicate the same title and description across every page of a site, which tells search engines nothing distinguishes one page from another. Each page should have its own unique title and description that reflects its specific content. For the full technical reference on which tags search engines actually read, see Google's guide to meta tags it understands.
The Official Specs Behind These Tags
Open Graph and Twitter Card tags aren't Google inventions β they come from their own open specifications, which is why this tool checks them as a separate group. The Open Graph protocol defines how og:title, og:image, and the rest turn any web page into a rich object when it's shared. X (formerly Twitter) maintains its own Cards documentation, which explains why twitter:card values fall back to Open Graph tags when they're missing.
Related Reading
If you're auditing meta tags as part of a broader SEO content review, our SEO copywriting guide for beginners walks through how titles, descriptions, and on-page copy work together to rank and convert.
Related Tools
- Meta Description Generator β write a fresh, optimized description for any missing or weak tag this analyzer flags.
- Headline Analyzer β score your title tag or on-page headline for clarity and click-through potential.
- CTA Generator β pair a strong call to action with your newly optimized page.
- USP Generator β sharpen the value proposition your title and description are selling.
See the full list on the Free AI Writing Tools page.