I have issues with Twitter share button, I have this code as an input:
<meta name="twitter:card" content="summary">
<meta name="twitter:site" content="@citydesigning">
<meta name="twitter:title" content="City Design">
<meta name="twitter:description" content="I recommend this epic City Design online course at https://stepic.org/city #stepiccity">
<meta name="twitter:creator" content="citydesigning">
<meta name="twitter:image:src" content="https://stepic.org/static/classic/city/images/sharepic.png">
and
<a class="twitter" href="https://twitter.com/intent/tweet?url=https://stepic.org/city" target="_blank"></a>
But it returns no results when sharing, only this text: "https://stepic.org/city" instead of all Twitter card information (like image and some text) when clicking "View summary" on Twitter's feed.
Can you help me, pleasee?
Domains need to be approved before Twitter Cards will work. Use Twitter's validator and then click "request approval":