Social Preview Checker
Preview how a link looks on Facebook/Twitter/Zalo — check Open Graph, Twitter Card and hreflang
Working...
Why check the social share preview?
Missing or incorrect Open Graph tags make shared links look bad on social media — no image, wrong description — hurting click-through rate. The tool simulates the preview and lists every tag.
When a link is shared on Facebook, Zalo or Twitter/X, the platform reads Open Graph tags (og:title, og:description, og:image) and Twitter Card meta — not the actual page content — to build the preview. If these tags are missing, the platform picks a random image or paragraph from the page, which usually looks unprofessional and reduces click-through rate. The Social Preview Checker reads the page's OG and Twitter Card tags directly, rebuilds a Facebook-style preview so you can see it beforehand, and lists every declared hreflang pair (important for multilingual sites like vi/en) so you can quickly spot a missing language.
- Simulates the preview like a Facebook share
- Open Graph and Twitter Card checklist
- Lists declared hreflang tags for multilingual SEO
How to use in 3 steps
- 1Enter the URL you want to preview before sharing.
- 2Click "Preview now" — the tool reads the OG/Twitter Card tags.
- 3Review the simulated preview, tag checklist and hreflang list.