Website thumbnail on other websites

I just added my personal website http://oatmeeel.com/ to my Linkedin. It appears that there is no thumbnail/icon showing on my LinkedIn (https://ca.linkedin.com/pub/oat-wongsajjathiti/63/55b/967)

How do I add some sort of an image (like favicon) to any links to my website from other websites. Sorry if I'm being unclear. Here is an image of my issue.

Thank you

Solution

I believe Linkedin uses three open graph protocols, one of them being image to scrape an image to use from your website. Scrolling through your source code I didn't see one. Try adding <meta property="og:image" content="http://URLTOYOURIMAGE" /> to the of your website and see if that changes anything.