see this stack overflow post
Seems like OpenGraph doesn't support Webp format.
This effects the preview - so we won't get an image when sharing the link..
Also check why is the Favicon is seen as the og:image tag - as can be seen in this facebook link analyzer

https://developers.facebook.com/tools/debug/?q=https%3A%2F%2Fxrisrael.earth%2F
Also check why is the Twitter preview broken -
https://cards-dev.twitter.com/validator
And why is the Google Rich Text test is showing a problem
https://search.google.com/test/rich-results?id=JtlwpJt0y0vV75KGp43BEQ
try to find out about fb:app_id so it will be part of the metadata