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Meta tag checker and Open Graph preview

Updated 2 November 2026

Paste any page address to see the title, meta description, robots directives, canonical, Open Graph and Twitter tags exactly as your server sends them, with a preview of how the page looks in Google and when it's shared on Facebook, LinkedIn, Slack or X.

What this checker reads

Meta tags live in the <head> of your HTML. Visitors never see them, but search engines and social networks read them first. This tool loads the page the way a crawler does, without running JavaScript, and lists what it finds:

• Title tag. The blue headline in Google results and the text in the browser tab. Aim for roughly 30 to 60 characters, with the main topic first. Google measures in pixels, so very wide letters cut sooner.
• Meta description. The grey summary under the title. Google rewrites it often, but a specific 70 to 160 character description still wins more clicks than whatever text it scrapes from the page.
• Robots directives. noindex in a meta robots tag or the X-Robots-Tag header removes the page from Google. It's a common leftover from staging sites.
• Canonical. Which URL you want indexed when the same content exists at several addresses. Use the canonical checker for a deeper look.
• Open Graph and Twitter tags. og:title, og:description, og:image and twitter:card decide the preview card when someone shares your link.

Why server HTML matters

Many sites built with React, Vue or similar frameworks set their tags with JavaScript after the page loads. Google can run JavaScript, but later and not always. Facebook, LinkedIn, Slack and most chat apps don't run it at all. If this checker shows no title or no Open Graph tags while your browser tab shows them, your tags are added client-side and social previews will be blank. Server-side rendering, pre-rendering or a static site generator fixes that.

A good Open Graph setup

Every page you expect people to share should have its own og:title, og:description, og:url and an og:image with a full https:// address. Use a 1200 × 630 pixel image under about 5 MB, with any text kept away from the edges because some apps crop to a square. Add twitter:card set to summary_large_image for a large preview on X. Platforms cache previews: after you fix the tags, use Facebook's Sharing Debugger or LinkedIn's Post Inspector to refresh them.

The preview is an approximation

Google picks its own title and snippet when it thinks they match the search better, and every social network styles its card a little differently. The previews here show what your tags ask for, which is what you control.

Frequently asked questions