title: Unfurl links as videos in Slack
body: <p>&quot;Slack&quot; can unfurl links as videos, but some services can and some cannot.</p>
  <p>Vimeo(<a href="https://vimeo.com/" rel="nofollow noreferrer">https://vimeo.com/</a>) can unfurl links as videos in Slack.</p>
  <p>TED(<a href="https://www.ted.com/talks" rel="nofollow noreferrer">https://www.ted.com/talks</a>) cannot unfurl links as videos in Slack.</p>
  <p>Their's HTML have oembed links as &lt;link rel=&quot;alternate&quot; type=&quot;application/json+oembed&quot; href=&quot;https://example.com/...<br />
  And They have embed video player.</p>
  <p>reference: <a href="https://oembed.com/" rel="nofollow noreferrer">https://oembed.com/</a></p>
  <p>What is their's difference?</p>