To see how your markup appears to the Facebook Crawler enter a URL into Sharing Debugger. It will show which meta tags the crawler scrapes as well as any errors or warnings.
Using the Facebook Object Debugger CLI is really simple. You can refresh a single URL or a bunch of URLs providing a text file with a list of URLs, one for each line.
The Object Debugger allows you to inspect the published properties of the components of a program at run time, and edit them. You simply place the component on the main form of your project, and when the program starts, the Object Debugger window is autom