Hey, I have a lot of different URLs on my website that I have recently edited with meta information inside the header. The problem I have come across is that when you paste one of these URLs into Facebook, it does not show the updated info (the title, description and thumbnail). I researched and found out that if I use their Debug tool, it will clear the cache of the URL... but my problem is that I have lots of URLS so I can't really do this for them all. It looks like my only option now is to wait for Facebook to flush their cache of my website I haven't been able to find out when exactly they do this, so does anyone know? Is it 48 hours, 1 week, 1 month, etc? Thanks
One week since my website was cached by FB, or the same day every week no matter if my site was cached just a couple days ago?
Usually it gets cached every day,if your website is too famous. But if you do not have that much traffic,then I should say it takes 1-2 weeks for sure.