Parsing posts in public?

Question

Parsing

Good day friends!
There is a website, there are 3 publics in 3 social networks (Facebook, Twitter and VK) - I am the administrator in all three.
A post is being created on the site - can it be uploaded to these 3 groups automatically?
Clearly: We create a post about cats with pictures and text, published.
Automatically, or with the Share button (for example), we scatter the link to the post into these 3 groups (not just a link, but with a preview format, as it is done in VK: that is, an Announcement, a Picture and an ellipsis with a link to the site and this entry).