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Here is a ZOO element and Joomla! system plugin that need to be configured.
After installation there is a System - Open Graph for ZOO plugin. It has following params:
- Image - choose default image for Open Graph if the content have no image. I.e. you may use special picture with logotype of your website.
- Twitter Site - Twitter account related to your website
- Twitter Creator - Twitter account of content author
- Facebook application ID (optional) - ID of Facebook application.
Use images that are at least 1200 x 630 pixels for the best display on high resolution devices. At the minimum, you should use images that are 600 x 315 pixels to display link page posts with larger images. Read more: Optimize images to generate great previews
Do not forget to enable the plugin!