SEO Tools
Open Graph Checker
Check a page's Open Graph tags for social sharing previews.
Enter a URL to check its Open Graph tags (og:title, og:description, og:image, og:url, og:type).
JustChecker tracks your on-page SEO signals continuously.
Frequently Asked Questions
They control how your page appears when shared on platforms like Facebook and LinkedIn - the preview title, description, and image shown are pulled directly from these tags rather than the page's regular meta title/description.
Social platforms will attempt to guess an appropriate preview from the page's regular content, often resulting in an inconsistent, less polished, or sometimes entirely wrong image/text being shown when the link is shared.
A common recommended size is around 1200x630 pixels, which displays well across most platforms' preview card formats without awkward cropping - significantly smaller images may appear stretched or blurry.
Social platforms aggressively cache preview data per URL - most offer a manual "scrape again" or debugging tool specifically to force a refresh after you've updated the underlying tags.
No, they're a separate specification, though Twitter/X will fall back to reading Open Graph tags if dedicated Twitter Card tags aren't present - having both explicitly set gives you more precise control over each platform's specific preview format.