OPEN GRAPH & TWITTER CARD CHECKER

Paste any public URL to preview how it looks when shared on Facebook, X (Twitter) and LinkedIn and Review the meta tags that were found.

Enter a public URL like example.com or https://example.com/blog. Our server fetches the page to read its meta tags — nothing is stored. Or try an example.

Paste a URL above and see the results here

Checked: — previews below are approximate renderings based on the page’s meta tags.

Social media previews

Facebook
X (Twitter)
LinkedIn

Warnings & tips

All metadata found

Tag Value

Copy the source snippet

Paste this into your page’s <head> and re-check the URL.

Most important tags

og:title

The main headline on Facebook and LinkedIn. Keep it clear, specific and close to your page title.

og:description

The summary that helps people decide whether to click. One concise, value-focused sentence works best.

og:image

The most visual part of a shared card. Use a high-quality 1.91:1 image with an absolute HTTPS URL.

og:url

The canonical share URL. Set it to your preferred URL so platforms consolidate preview data.

twitter:card

Tells X which card format to render. Use summary_large_image for most content pages.

Image sizes by platform

PlatformRecommended sizeNotes
Facebook1200 × 630Uses og:image. Keep important text centred to avoid cropping.
X (Twitter)1200 × 630Works well with summary_large_image cards.
LinkedIn1200 × 627 / 630Reads Open Graph metadata, so og:image quality matters most.

Common issues and quick fixes

  • Preview shows the wrong title — make sure og:title is present and unique for the page.
  • Image is missing — confirm og:image is an absolute HTTPS URL that is publicly reachable.
  • Old preview keeps showing — platform caches are stale; trigger a re-scrape in each platform’s sharing tool.
  • Wrong page URL appears — set og:url and rel="canonical" to your preferred URL.

Frequently asked questions

Start with og:title, og:description, og:image and og:url. og:type is also useful, and most sites should add twitter:card plus Twitter title/image tags for stronger X previews.

All three read Open Graph tags, but X also uses Twitter Card tags when they exist. When both are present, X usually prefers twitter:*, while Facebook and LinkedIn rely on og:*.

Social platforms cache link metadata. After updating your tags, use each platform’s re-scrape or inspector tool to refresh the cached preview, then test again.

No. The checker only fetches public pages over HTTP/HTTPS. Localhost, internal hostnames and private network IP ranges are blocked for security.

Privacy: the URL you enter is fetched by our server so it can read the page’s meta tags, and the page content is never stored. If the site’s API endpoint (/api/og) is not available, the tool falls back to a public relay service and shows a note when that happens — run the site with npm start to keep all checks on this server.