We moved our Wordpress blog images recently to a CDN provider. Since that transition the Twitter cards stopped showing images.
Here is a sample url.
The card validator mentions “*.simplepractice.com is whitelisted for summary_large_image card”, but our CDN url is https://20307-presscdn-pagely.netdna-ssl.com
(Sample image url from the article/Twitter card above) https://20307-presscdn-pagely.netdna-ssl.com/blog/wp-content/uploads/2016/11/00-15-important-office-procedures-and-policies-for-counselors-and-therapists.png)
How can we get that the domain “20307-presscdn-pagely.netdna-ssl.com” whitelisted for our Twitter cards?