Firstly, I’m a Twitter/Blogger newbie…
My issue is this… When I share most other website URLs as a link in a tweet, as well as the URL, a lovely little card appears with the respective image. However, when I try that for my Blogger/Blogspot URL, no card appears in the tweet timeline.
I’ve searched about, found some instructions on TwitterDev, inserted some code into my website, and all seems ok on Card Validator (whatever that is!?). I think I can get it so that a Summary Card pops up once you’ve already expanded the tweet, but not when the tweet appears in the timeline.
Any solutions (for a total beginner!) welcome! Many thanks! Aaron