Twitter card definition: Twitter card refers to a rich-media attachment to a standard Tweet; they can help increase website traffic.
Twitter cards help add context to URLs that are added to Tweets and are displayed alongside a Tweet’s content.
They can contain:
Here is an example from Loomly’s Twitter feed:
Twitter cards are created by adding metatags – pieces of code – to a brand’s website that allows Twitter to extract and display the correct information from a webpage.
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