Tools for viewing OGP
bash
$ curl https://ogp.me | og
+-----------------+-----------------------------------------------------------------------------------------+
| property | content |
+-----------------+-----------------------------------------------------------------------------------------+
| og:title | Open Graph protocol |
+-----------------+-----------------------------------------------------------------------------------------+
| og:type | website |
+-----------------+-----------------------------------------------------------------------------------------+
| og:url | https://ogp.me/ |
+-----------------+-----------------------------------------------------------------------------------------+
| og:image | https://ogp.me/logo.png |
+-----------------+-----------------------------------------------------------------------------------------+
| og:image:type | image/png |
+-----------------+-----------------------------------------------------------------------------------------+
| og:image:width | 300 |
+-----------------+-----------------------------------------------------------------------------------------+
| og:image:height | 300 |
+-----------------+-----------------------------------------------------------------------------------------+
| og:image:alt | The Open Graph logo |
+-----------------+-----------------------------------------------------------------------------------------+
| og:description | The Open Graph protocol enables any web page to become a rich object in a social graph. |
+-----------------+-----------------------------------------------------------------------------------------+