Here’s an interesting factoid for you. Approximately once every 13 seconds* another blogger posts on an internet forum or group a variation on the following question: “Why does Facebook always show the wrong image when I post a link to my blog ?!!”
This post is a guide to what’s going on and how to make it right.
I preface it with this caveat:
Facebook is a mean ole bully and often changes the way that it operates suddenly and without warning. What works today could become obsolete tomorrow. Today, this is what works.
Get To Know The Open Graph Protocol
The Open Graph Protocol is a particular set of meta data – that is, information about your site, that goes into the code of your site. Both Facebook and Google Plus look for this meta data in order to learn about your website.
When it’s all present and correct your site looks lovely in Facebook.
When it’s not there, they make stuff up based on whatever they can grab.