Tweeted By @random_walker
Ah, of course it's been done🙂
— Arvind Narayanan (@random_walker) September 19, 2019
I've just been reminded that:
Floodwatch did this long ago but ran out of funding: https://t.co/HLVTDeCNRh
Mozilla built this for FB ads but shut down by FB: https://t.co/WOLy0T6RWt
AdAnalyst is a similar tool (also FB only): https://t.co/wT07cci1JZ