Checks
Open Graph image
Checks that pages declare an og:image with its width and height, ideally sized 1200 by 630 pixels, so shared links render a proper preview image.
What this check looks for
This check first looks for an og:image tag; if absent, it fails outright, since shared links then render with no preview image at all. If present but og:image:width/og:image:height aren't both declared, it warns — platforms then have to fetch the image themselves before rendering, delaying the preview. If dimensions are declared but either is under 200px, it warns as too small for large-format previews. Dimensions at or above 200px on both axes pass, with 1200×630 called out as the platform-recommended size.
Why it matters
A link shared without a preview image renders as a bare text card on most platforms, which gets noticeably less engagement than a card with a visual — this is one of the more measurable social-sharing optimizations available, since the image is often the first thing that catches attention in a crowded feed or chat thread. Declaring width and height up front lets the receiving platform lay out the preview immediately rather than fetching the image first to measure it, which speeds up how quickly the preview appears. AI chat interfaces rendering rich citations for a shared or cited link follow the same og:image convention, so a well-sized image benefits how your content is visually represented there too.
How to fix it
Add an og:image with its declared dimensions, sized to at least the 1200×630 recommendation:
<meta property="og:image" content="https://www.acme.com/og/wireless-nc.jpg">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">Use a dedicated share image rather than reusing a small product thumbnail — 1200×630 gives enough resolution to look sharp across every platform's crop and scaling behavior.
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