How do I describe this image? What is it called and how can I do it with my website?

http://ift.tt/1MIBvfa

When I send links on Facebook, it adds adds a thumbnail, with a title/description. What is this called and how can I do this with my own site?

regards

Epic visual tool

Epson 5030UB 2D/3D 1080p 3LCD Projector Submitted December 31, 2015 at 02:15PM by LOUiS59 http://ift.tt/1VrWOJ0