Error with https://denverprophit.us/content-marketing/gaining-wisdom-knowledge-business.html

[inetbiz]

URL: https://denverprophit.us/content-marketing/gaining-wisdom-knowledge-business.html
Status: 200
Error: No webmention endpoints found in the 1 content entry

My Jekyll head entries:

<!-- indieweb begin -->
  <link rel="alternate" type="application/atom+xml" class="h-feed" title="RSS Feed for DenverProphit.us" href="/feed.xml" />
  <link href="https://twitter.com/{{site.socialmedia.twitter}}" rel="me">
  <link href="https://facebook.com/{{site.socialmedia.facebook}}" rel="me">
  <link rel="authorization_endpoint" href="https://indieauth.com/auth">
  <link rel="token_endpoint" href="https://tokens.indieauth.com/token">
  <link rel="webmention" href="https://webmention.io/denverprophit.us/webmention" />
  <link rel="pingback" href="https://webmention.io/denverprophit.us/xmlrpc" />
  <link rel="micropub" href="/micropub/index.php">
  <!-- indieweb end -->

[remy]

There's no web mentions on that page. There's a few links to amazon, but amazon doesn't support webmentions, so they won't get pinged.