The OG tags on a domain were broken for sometime and FB has cached the bad data for quite a few pages. Everything’s corrected now, but FB’s cache seems to last quite some time.
I know I can expire and repopulate the cache for a single page by using this tool: https://developers.facebook.com/tools/debug
I’d like to get that done to every page on my site. Is there anyway to have FB recrawl all pages that are liked/shared from my site?
Sorry. Just use the debugger for every page on your domain. There is also a
rescrape=trueparam for the graph API if you get rate limited by the debugger.