I’m a newbie for using twitter cards.
I have a page with metadata to use twitter cards.
The metadata looks like this:
The Twitter Card Validator says, it’s ok. But when I do a Request Approval, the answer from twitter is:
"The URL you provided for handelsblatt.com to use the summary card did not validate. Please make sure the page contains valid metadata, then reapply for a Twitter card. "
I have used other combinations too - without postive effects.
I have no idea, whats wrong.
Can anyone give a tip?