Open Graph Checker
See how a link will look when it's shared on Facebook, LinkedIn, X, Slack and messaging apps. Every Open Graph and Twitter Card tag is listed and checked, and the share image is loaded to measure its real size.
The tags that make a share card
| Tag | What it does |
|---|---|
og:title | The card's headline. Without it, platforms use the page's title tag. |
og:description | One or two lines under the headline. Falls back to the meta description. |
og:image | The picture. Use a full https:// URL to an image of at least 1200×630 pixels. |
og:url | The canonical address, so shares of URL variants count as one. |
og:type | website for most pages, article for posts. |
twitter:card | summary_large_image for a large image card on X; otherwise X shows a small one. |
A minimal set looks like this:
<meta property="og:title" content="Page title">
<meta property="og:description" content="What the page offers.">
<meta property="og:image" content="https://example.com/share.png">
<meta property="og:url" content="https://example.com/page/">
<meta property="og:type" content="website">
<meta name="twitter:card" content="summary_large_image">Share image size
Use 1200×630 pixels, a 1.91:1 ratio, for every platform. Keep text and faces away from the edges, because some apps crop to a square. Facebook won't use images under 200×200 pixels, and very large files may not load in time when a link is first shared, so keep the file under about 1 MB.
Questions
I fixed my tags. Why does the old card still show?
Platforms cache share cards, often for days. Facebook's Sharing Debugger and LinkedIn's Post Inspector fetch the page again and update the cache. X refreshes on its own, usually within a week.
Do Open Graph tags help SEO?
Not directly; Google doesn't rank pages on them. They decide how your links look when people share them, which affects how many people click, and clicks from social shares bring visitors and sometimes links.
Do I need separate Twitter tags?
Mostly not. X reads Open Graph tags for the title, description and image when its own tags are missing. The one worth adding is twitter:card, which picks the large image layout.
Are the previews exact?
They're close, not pixel-perfect. Each platform changes its layout from time to time and crops differently on phones. The tags and the image size are what decide the result, and those are checked exactly.