Open Graph image size matters because the image is often the first context people see when a page is shared in a timeline, a team chat, or a private message. A good OGP image should remain understandable even when a preview surface crops, compresses, or scales it.
Use 1200×630px as the default
For most website pages, 1200×630px is the safest default Open Graph image size. The ratio is close to 1.91:1, which fits the large preview cards used by many services while leaving enough resolution for dense displays.
Leave a safe area
The exact crop can change across X, Facebook, Slack, Discord, search result previews, and mobile apps. Treat the outer edges as a safe margin, and keep the title, logo, or product signal inside the central area.
Before publishing
- Use an absolute HTTPS URL for og:image
- Make sure the image can be fetched without authentication
- Avoid very small source images
- Check that text remains readable after scaling
- Keep the image message aligned with the page title
Open Graph previews should be checked whenever a template, image generator, or deployment path changes. Use the TOOLPOOL OGP Checker to confirm the image URL, extracted meta tags, and likely preview data before publishing.