Twitter Cards allow you to attach rich photos, videos and media experiences to Tweets, helping to drive traffic to your website. Simply add a few lines of markup to your webpage, and users who Tweet links to your content will have a “Card” added to the Tweet that’s visible to their followers.
Twitter Cards are found in your content and are not managed via SocialFlow. When a message is published to Twitter via SocialFlow the Twitter Cards are scraped by Twitter when the message is being published on their end.
You can learn more about Twitter Cards and how to use them below.
Twitter has also provided a Twitter Card validator that will allow you to test and preview the Twitter Cards found in your content.