Are You Facebook Blank?
Do you ever get a blank box when you post your website to Facebook…annoying isn’t it?…after all images attract attention far more than just the words of your URL….
This is normally due to og:properties not being pulled correctly or Facebook not pulling a default image, however, there is a great debug tool, which you can use to force a scrape of your website, to pull these bits of information, which 9 times out of 10 will resolve the issue and stop you being “Facebook Blank”.
Check it out over on the Facebook Developer pages: https://developers.facebook.com/tools/debug/
Simply Enter your URL and press Debug – this will force a re-scrape and then try posting your URL again to Facebook, you should now have your lovely images showing up.