Open Graph is a protocol originally created by Facebook that lets website owners control how their page looks when shared on social networks. By adding og: meta tags to your HTML, you define the title, description, image, and type of content that social platforms display.
Facebook caches og: tags aggressively. If you recently changed them, use the Facebook Sharing Debugger to clear the cache and force a re-scrape of your page.
1200×630 pixels at a minimum of 600×315 px is the recommended size. Facebook will not render images smaller than 200×200 px. The aspect ratio 1.91:1 works best across most platforms.
Twitter reads its own twitter: meta tags first. If they are not present, it falls back to og: tags. A different twitter:image or twitter:title will produce a different card.
Yes. WhatsApp reads og:title, og:description, and og:image when generating a link preview inside a chat. The image should be at least 300×200 px to appear consistently.
og:url tells platforms which canonical URL to associate with the shared content. If your page is accessible at multiple addresses, setting og:url to the preferred one consolidates social engagement metrics on a single URL.
summary_large_image is the most commonly used type and shows a large banner image above the title and description. Use summary for a smaller square thumbnail on the left side.
No. Most platforms cache link previews for hours or days. Facebook, LinkedIn, and Twitter each provide a developer tool to clear the cache and force a fresh scrape.
Yes. LinkedIn reads og:title, og:description, og:image, and og:url to build the link preview card shown in posts and messages.
Yes. The Open Graph preview tool is completely free to use. There is no account, subscription, or usage limit.
You can preview any publicly accessible URL. The tool fetches the page server-side and reads the meta tags. Private pages, URLs behind a login, or pages that block bots may not return full data.
Preview
Your Link on
Social Media
Before You Post
