Is the meta tag preview free?
Yes. Inspecting meta tags from pasted HTML is completely free, with no signup required.
Can I preview a live URL?
No. This tool is paste-only and does not fetch remote pages. Paste the page's HTML or head markup to inspect it.
Does it show social meta fields?
Yes. Key Open Graph and Twitter card values are extracted and shown alongside the standard title and description tags.
Does it upload my markup?
No. The HTML you paste is parsed locally in your browser and is never sent to a server.
What fields does it extract?
It extracts the title, meta description, canonical URL, robots directives, and the main Open Graph and Twitter social tags.
Why is every field Missing except the title?
You almost certainly pasted the tags without a <head> wrapper. The HTML parser puts a loose <meta> or <link> into the body, and the extractor queries document.head only, so nothing is found. The title still shows because document.title finds a <title> anywhere in the document. Wrap the tags in <head>...</head>, or paste the real head block from view-source, and every field resolves.
Can I paste a URL instead of markup?
No, the tool is paste-only. Open the page, view its source, copy the <head> section, and paste that. This is a deliberate limit rather than a missing feature: a browser tool cannot fetch a third-party page without a proxy, and a proxy would see a different response than a real crawler does anyway.
Will it warn me that my title is too long?
No. It shows the title and description exactly as written, with no character count and no truncation. Google cuts by rendered pixel width, not by character count, so any fixed limit would be a guess. The usual working ranges are about 60 characters for a title and about 155 for a description.
Why is an image shown when I have no og:image?
The image field falls back to twitter:image when og:image is absent, so the value you see may come from the Twitter tag. If you need to know which tag supplied it, use the Open Graph Preview, which lists og:image and twitter:image as separate rows.
Does it check my robots meta against robots.txt?
No. It reads the content of meta[name="robots"] and prints it, or prints Missing. It does not fetch robots.txt, does not check for an X-Robots-Tag header, and does not resolve conflicts between them. A page can be indexable per its meta tag and still blocked from crawling at the robots.txt level.
Is the markup uploaded?
No. The head is parsed in your browser and the extracted fields never leave the tab, which is why the tool cannot fetch a live URL for you.