🖼️ Checking OGP Meta Tags

What to check when a share card on social or chat apps looks wrong.

Sharing a link to social media or a chat app often produces a broken preview image or title — usually an OGP tag problem.

What OGP is

Open Graph Protocol is a standard created by Facebook. Adding meta tags like og:title, og:description, and og:image to a page's <head> lets social apps and messengers read that info to build a share card.

When the preview is missing or wrong

This commonly happens when og:image is missing or points to a broken URL, when og:title is missing so the page's plain <title> gets used instead (which may not fit well), or when a stale preview keeps showing due to caching — both Kakao and Facebook cache share cards, so updates can take a while to appear.

The essential tag checklist

og:title, og:description, og:image (1200×630px recommended), og:url, and og:type are the baseline. If you're sharing to X (Twitter), also check the separate twitter:card tag.

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