I’ve developed a site for a client and they wanted to add Summary Cards. However when using the car validator it says “WARN: not whitelisted”. It’s blog/online magazine and they wanted cards for each article, so could someone please whitelist the main url or does each article have to be done separately?
p.s. I’ve only add the meta tags to 1/22 of the articles as of yet but I would like any future articles from the 22 to be listed also.