Open Graph checker

See how a link will look when it's shared on X, LinkedIn, Slack or iMessage, which Open Graph and Twitter tags are missing, and whether the preview image is large enough.

Free: 10 checks a day, no signup. Takes about 10 seconds.

What makes a good link preview

  • og:title, og:description and an absolute og:image URL.
  • An image of at least 1200×630 so it stays sharp on large cards.
  • twitter:card set to summary_large_image for the big card on X.
  • A canonical URL, so every shared variant points at one page.

Run it from code

curl "https://shotlane.dev/v1/report?url=example.com" \
  -H "X-API-Key: $KEY"

The same report as JSON, 1 credit per URL. See the docs.

100 free renders a month · no credit card · key shown instantly