What is Facebook URL Debugger? Let us presume you have a blog and you share a post on Facebook.
Sometimes this just doesn’t seem to work out: no picture, no text or some other text you do not want. That means you have to do some changes to your article in order to have a proper social highlight (insert title, description, picture, etc) – that depends on what CMS/apps you have on your blog.
After you do that or simply change some information on your post (like title for example), Facebook still caches the old post!
In order to add the new modified post/article just click on FACEBOOK URL DEBUGGER, and insert the link of your article -> DEBUG, after that click on Scrape Again to refresh the old cache stored for your post.
That should do the trick. Anyway, in case you want to see how well your post is designed in terms of social sharing, SOCIAL DEBUG is the right website you need.
Good luck and have fun!