Facebook advertisers will now be able to see analysis of their ads on the basis of audience, budget, bid, and targeting. Thanks to Ad Grader, a third party tool, which will analyze News Feed ads and offer grade & tips for improvement, free of cost.
The Ad Grader will analyze News Feed ads to provide grade (A through F). It will also give actionable tips so that brands can improve their ad units.
There's not much information currently available but Ad Grader website says:
"Stop wasting cash on bad ads. Get your Facebook ads graded today for free. We check images, copy, placement, audiences, bidding and more!"Check your Facebook Ads, Get Grades & Improvement Tips for Free with Ad Grader!,