I have tried the troubleshooting steps, updated my robots.txt, and have included the meta tags. I keep getting this message from the card validator:
INFO: Page fetched successfully
INFO: 18 metatags were found
INFO: twitter:card = summmary_large_image tag found
WARN: Not whitelisted
I understand that the large summary cards do not need to be approved for whitelisting.
The twitter cards do not show on the preview or on my profile.
Is there anything that I am forgetting to do?
Troubleshooting steps tried already: