Download the plugin here:
http://wordpress.org/extend/plugins/facebook-debug-links/
This plugin adds a link in the row-action section to view the page/post in the Facebook Debugger:
This plugin adds a metabox on the post/page screen:
Only published posts/pages will get Facebook Debug links.
is this tool work for schedule posts? i m using this tool but not working on schedule posts
Thanks for your comment.
I’m afraid that’s not possible in general, because Facebook needs to fetch the page to read it’s meta data.
So the post status must be “publish”.
ps: It’s on the plan to update the plugin with extra settings, where you can control better the metabox display based on custom post types and capability.