Free Online Meta Tag Analyzer Tool
A meta tag analyzer reads HTML you paste and pulls out the title, meta description, robots, canonical, viewport, Open Graph and Twitter tags, checking each against best-practice limits.
Your data is processed entirely in your browser and never sent to any server.
This reads HTML you paste — it never fetches a URL.
How to Use This Tool
- Open the page you want to check and view its source (Ctrl/Cmd+U), then copy the whole document.
- Paste the HTML into the input box — the analyzer reads it directly, no URL needed.
- Review each tag's status dot: green is fine, amber is a warning, red means missing.
- Fix titles over ~60 characters and descriptions over ~160, and resolve any missing canonical or duplicate tags.
- Re-paste the updated HTML to confirm the warnings clear before publishing.
What Is a Meta Tag Analyzer?
Meta tags live in the <head> of an HTML document and tell browsers and search engines how to interpret and display a page. The most consequential for SEO are the <title> (Google displays roughly 60 characters / ~580 pixels), the meta description (around 155-160 characters before truncation), the robots directive (index/noindex, follow/nofollow), and rel=canonical, which names the preferred URL when duplicate content exists. The viewport tag governs mobile rendering, while Open Graph and Twitter Card tags control how links look when shared.
This analyzer parses the markup you paste with the browser's own HTML parser, then evaluates each tag: it flags titles and descriptions that are too long or too short, warns when robots is set to noindex, catches missing or multiple canonical tags, and counts the social tags present. Because it reads pasted HTML rather than fetching a URL, it works on staging environments, pages behind logins and competitor pages whose source you copy with View Source (Ctrl/Cmd+U).
All parsing happens client-side; the HTML never leaves your device. Use it as a fast pre-publish checklist or to audit why a page's snippet looks wrong in search results.
Frequently Asked Questions
How do I get a page's HTML?
Why paste instead of entering a URL?
What does it check?
Published by the WeGotEveryTool team. We build and test every tool in-house and update pages when the underlying spec, formula, or recommendation changes.
Reviewed: May 2026. Disclaimer: this tool is provided as-is for general informational use. For decisions with material consequences (medical, legal, financial, security) verify results against a qualified professional source.
Related SEO Tools
Type a title, description and URL to see a live Google desktop and mobile snippet, with pixel-width truncation that matches how search results actually display.
Type a page title to see its character count and estimated pixel width, with a preview showing where Google truncates it on desktop and mobile.
Paste HTML to extract its Open Graph tags, preview the link card and get warnings for missing required properties like og:title, og:image and og:url.
Paste HTML to find its canonical link tag and flag common problems: missing tag, multiple canonicals, relative URLs or self-referencing mismatches.
Paste HTML to extract Twitter Card tags, preview the card and validate the card type plus required twitter:title and twitter:image properties.