Open Graph tags
These fields usually drive the card headline, summary, preview image, and canonical URL across sharing surfaces.
og:titleog:descriptionog:imageog:url
URL preview tool
Open Graph Preview Checker
Enter a public website URL to inspect its Open Graph image, title metadata, description metadata, and core social preview tags.
Checks included
Quick coverage for the tags and image rules that usually decide whether a card renders correctly.
og:titleog:descriptionog:imagetwitter:cardHTTPS imageabsolute URL
Preview any public page
Paste a URL above to see the image, title, description, and missing metadata tags before sharing a link.
Extracted tags and checks
Review what crawlers can read from the page before the link appears in a feed or chat.
Twitter card tags
Twitter Card fields are shown separately so you can spot X-specific overrides instead of guessing when Open Graph values are reused.
twitter:cardtwitter:titletwitter:descriptiontwitter:image
URL and image checks
The checklist highlights relative image paths, non-HTTPS assets, invalid image URLs, and response problems.
absolute URLHTTPS imageimage response
Troubleshooting
Most broken cards trace back to small HTML metadata or image delivery details.
Why preview images fail
Common causes include a missing og:image tag, a relative path, an image response blocked by the host, an oversized asset, or a URL that crawlers cannot reach. Use a full HTTPS image URL and keep the artwork close to the 1200 x 630 card ratio.
Social platforms cache cards
This checker reads the current HTML, but Facebook, X, LinkedIn, Slack, and Discord may continue showing an older cached card until their crawlers revisit the page. This version does not trigger official cache refresh tools.
Relative and non-HTTPS URLs
A browser can resolve paths like /og.png from the current page, but social crawlers work best with complete image URLs. Non-HTTPS assets may be rejected or treated as lower trust on secure surfaces.