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Check Open Graph tags, OG images, Twitter/X Cards and social sharing metadata for any public webpage. The GIMSEO Open Graph Checker fetches the live page, analyzes its social metadata, checks the declared preview image and shows platform-style social previews.
Use this free Open Graph checker when you need to verify how a URL may appear when shared on Facebook, LinkedIn, X, Discord, WhatsApp, Slack or Telegram. It helps identify missing or incomplete Open Graph tags before you publish or share a page.
An Open Graph Checker is an SEO and social metadata testing tool that reads the Open Graph properties published in a webpage. These og: tags tell social networks and messaging platforms which title, description, image, URL and other information to use when a page is shared. A live checker is useful because it examines the HTML that is publicly available at the URL rather than relying on what you expect to be in your source code.
Checks og:title and flags titles that are missing, unusually short or likely to be truncated in social previews.
Checks og:description so your shared link has useful supporting text instead of leaving the platform to guess.
Checks the declared og:image, resolves the image URL and reports dimensions, file type, size and common image problems.
Reviews og:url and og:type so the shared page has a consistent canonical social identity.
Reads Twitter/X metadata such as twitter:card, title, description and image to identify gaps in social card configuration.
Shows previews for Google-style results and major social or messaging platforms so you can review the metadata presentation in one place.
Open Graph metadata is primarily used to control social and messaging previews, not as a direct Google ranking factor. Good metadata can nevertheless improve how consistently a shared URL is presented and can make the title, description and image more useful to people deciding whether to click.
An Open Graph image checker is especially useful after a website migration, theme change, CMS template update or redesign. A missing image, inaccessible image URL, incorrect dimensions or duplicate social tags can produce an unexpected preview even when the page itself looks correct in a browser.
A typical page should provide the core Open Graph properties and an appropriate social image. A simple implementation can look like this:
<meta property="og:type" content="website"> <meta property="og:url" content="https://example.com/page/"> <meta property="og:title" content="Your Page Title"> <meta property="og:description" content="A concise description of the page."> <meta property="og:image" content="https://example.com/images/social-share.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="630"> <meta property="og:image:alt" content="Description of the social preview image"> <meta name="twitter:card" content="summary_large_image">
For a general-purpose large social card, 1200×630 pixels is a practical target and corresponds to an aspect ratio of about 1.91:1. The image should be publicly accessible over HTTPS, return a valid image response and contain the important visual information inside a safe area so platform cropping is less likely to remove it.
The checker also compares the image dimensions it can read with any declared og:image:width and og:image:height values. This helps catch cases where the HTML claims dimensions that do not match the actual file.
An Open Graph Checker focuses on social sharing metadata, OG images, Twitter/X Cards and platform-style previews. A broader Meta Tag Checker examines the wider page metadata layer, including the title tag, meta description, robots directives, canonical URL, viewport, language, favicon and other head elements. Use both when you want a more complete on-page metadata review.
Open Graph tags are metadata properties such as og:title, og:description, og:image and og:url that describe a webpage for social and messaging previews.
It fetches a public webpage, extracts Open Graph and Twitter/X metadata, checks the preview image and reports missing, incomplete or inconsistent social metadata.
1200×630 pixels is a widely used general-purpose size for large social previews. The important point is also that the image is publicly reachable and has an appropriate aspect ratio.
Common causes include a missing og:image, an inaccessible image URL, HTTP instead of HTTPS, server restrictions, an invalid image response, unsupported content or platform caching.
Open Graph tags are mainly for social sharing and are not a direct Google ranking signal. They can still improve the quality and consistency of social previews, which can support sharing and click-through behavior.