What Are X Cards?
X Cards allow you to attach link previews with photos and link titles to your tweets. X cards look like this when published to X:
Your followers can click on the X Card to be taken to the link.
Types of X Cards
There are several types of X Cards:
To learn more about adding X Card meta tags to your website, please see X's Getting Started Guide.
Add X Cards to a WordPress blog
First, install the WordPress SEO by Yoast plugin.
Open the Yoast plugin.
Click on the Social settings under the menu.
Click on the X tab.
Check the Add X Card Meta Data option and input your X username.
Select The default card type you want to use and save.
X Card Validator
Double check that your X cards are working with the X Card Validator.
If you run into errors when validating your links, check out X’s Troubleshooting Guide.