Check out this URL: http://developers.facebook.com/tools/debug/og/object?q=www.linuxstall.com
Everything is fine except the last line which is
Note: "Reference in Perl" is the most recent post at my site.
When I share any of my post on facebook then it works fine but when I share the homepage (www.linuxstall.com) then it shows most recent post's description instead of the site's description.
What is the reason of that? How can I correct that?
I have configured open graph using YOAST.
See the screenshot. It is showing "Reference in Perl" as a description.