Semantic Linkbacks

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Semantic Linkbacks is a WordPress plugin that upgrades the presentation of linkback notifications (like Trackback, Pingback, or Webmention*) from the ugly default pingback presentation of "[…] random text excerpt […]" to a much more meaningful and user-friendly display as comments, reposts, likes, and favorites, detected using microformats2 markup from the source of the linkback.

For explicit in-reply-to interactions, the plugin also changes the WordPress comment type from "webmention" to "comment". Otherwise, it creates human readable whole sentences like "Alice liked this article on" with hyperlinks to the source author and permalink.

Comment Type Indicator

For in-reply-to interactions, the plugin adds a "type" indicator in the comment metadata for the specific type of interaction:

This "type" indicator enables further interaction-specific presentation customization, such as showing likes/favorites and/or reposts as a facepile.


  • Automatically embed facepiles (may not work on all themes)
  • Initial number of faces for facepile


If you want to write your own parser for additional markup(such RDFa or you have to hook up the `semantic_linkbacks_commentdata` filter and update the array-fields.

The comment-array is a WordPress Comment with some extra-fields.

All fields beginning with _ like:

  • `$commentdata['_canonical']` for the canonical source url
  • `$commentdata['_type']` for the comment type. The plugin currently supports the following types: `mention`(default), `reply`, `repost`, `lik e`, `favorite`, 'tag', rsvp:yes, rsvp:no, rsvp:maybe, rsvp:invited, rsvp:tracking.
  • `$commentdata['_avatar']` for the author avatar

...are saved as comment metadata.

Related Plugins

Webmention Plugin

*WordPress supports Pingback and Trackback by default; for Webmention support, you must install the separate Webmention Plugin which is very nicely complementary to the Semantic Linkbacks plugin.

Topics Getting Started on WordPressAdvanced WordPress Set UpPluginsThemesExamplesWordPress with BridgyDevelopmentDataSecurity
Primary Plugins Indieweb PluginWebmentionSemantic LinkbacksMicropubIndieAuthPost KindsSyndication LinksWebSub plugins
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