SearchLaneOpen Graph checker
Enter a page to see how its link looks when shared on Facebook, LinkedIn, Slack or X — and which og: tags are missing or broken.
| og:title | Set |
| og:image | 1200×630 |
| og:url | Differs from canonical |
| twitter:card | Missing |
Example result, not real data
What it shows
- Link previewThe card people see when they share your page: image, title, description and domain.
- Tag checksog:title, og:description, og:image, og:url, og:type and twitter:card — present, the right length and consistent.
- Image testWe download the og:image to make sure it loads and is really an image, with a size warning for small pictures.
How to use the Open Graph Checker
- Paste a page addressThe page you are about to share, or one whose previews look wrong.
- Look at the previewIf the picture is missing or the title is cut, the checks below tell you which tag to fix.
- Fix and refreshUpdate the tags, run the check again, then ask the network to re-fetch the page in its debugger.
Why it matters
Every link to your site in a chat, a post or a newsletter is a small ad. A big image and a clear title make people click; a grey box and a cut-off title make them scroll past.
Open Graph tags are set once in a template and then forgotten. A theme update or a new page type often breaks them silently, and you only notice when someone shares the page.
Questions
What size should the og:image be?
1200×630 pixels (ratio 1.91:1) works on every major network. Keep important text away from the edges, where some apps crop.
I changed the tags but the old preview still shows. Why?
Networks cache previews for days. Facebook's Sharing Debugger and LinkedIn's Post Inspector let you ask them to fetch the page again.
Do Open Graph tags affect SEO?
Not as a ranking factor. They decide how your links look when shared, which affects clicks from social and chat apps — and some AI tools read them as a page summary.
Do I need Twitter Card tags if I have Open Graph?
X reads og:title, og:description and og:image as a fallback, but it needs twitter:card to show the large image. One line — twitter:card = summary_large_image — is enough.
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