When someone shares a link on Facebook, the post takes its title, description and image from the page's Open Graph tags: og:title, og:description and og:image. Enter a URL above to list every Open Graph and Twitter card tag on the page, see which required ones are missing, check that the share image loads, and preview the card.
What Facebook wants in each tag
- og:title: the title of the page alone, without branding such as your site name.
- og:description: a short summary, usually between 2 and 4 sentences.
- og:image: the URL of the image that shows when someone shares the page.
- og:url: the plain URL of the page, without session variables, user parameters or counters.
The checker lists each tag it finds and flags the required ones that are missing. Fill those in first, then run the URL again.
Image sizes Facebook asks for
- Use at least 1200 x 630 pixels for the best display on high resolution screens.
- Below 600 x 315 pixels the image still shows, but much smaller.
- 200 x 200 pixels is the smallest Facebook allows.
- Keep close to a 1.91:1 aspect ratio so Feed shows the whole image without cropping.
- The file can't be bigger than 8 MB.
From Meta's Images in Link Shares documentation, read in October 2026.
The checker tells you whether og:image loads. It doesn't measure the image's dimensions or file size, so check those against the list yourself.
When Facebook still shows the old card
Facebook's crawler scrapes and caches a link's metadata the first time it's shared. This checker reads the page as it is now. It can't clear Facebook's cache. Once the tags are fixed, run the URL through Meta's Sharing Debugger so Facebook fetches the page's metadata again.
Facebook caches images by their URL, and an image won't update until its URL changes. If you replace the image at the same address, upload the new one under a new file name and point og:image at it.
This open Graph checker is free with no signup. SearchBlueprint, who make it, sell SEO planning for websites: which searches each page should answer.