Hi there, I made webmention.io. I haven&#x27;t updated the readme or home page yet, but I recently added a &quot;web hook&quot; feature which is similar to what you&#x27;re talking about with Trackbacks. The service will receive and verify the webmention, parse the page, and then send a post request with the contents of the comment. The format it sends looks like this <a href="http:&#x2F;&#x2F;indiewebcamp.com&#x2F;jf2#Example" rel="nofollow">http:&#x2F;&#x2F;indiewebcamp.com&#x2F;jf2#Example</a><p>So, it&#x27;s not quite trackback, but hopefully it&#x27;s more useful!