Link preview on social networks

Hello everyone,

I can not understand how to display the previews of the links of my site (www.soluzioni-informatichect.eu) that I share on the social networks (Facebook, Linkedin, ecc..). I tried installing the SEO and AutoSEO plugins but nothing. Can someone help me?

Thank you for your time.

Have you seen this post from few days ago? Looks like the same problem but I'm not sure if my suggestions worked. Please let me know if that is the same problem and if it helped.

Thank you very much for your answer!!! I try it and i answer to you. Have a nice day