From IndieWeb

e-summary is a microformats2 class name for publishing a rich summary typically as part of an h-entry, and is one way to publish a partial content h-entry in-stream in a homepage h-feed, while indicating to social readers that they may retrieve the entire content at the entry permalink.

As an e- property, it indicates that it contains markup, as opposed to p-summary which is strictly plaintext.

IndieWeb examples

  • fluffy uses e-summary from h-feed pages in order to indicate that there's additional content to be loaded at the actual h-entry URL.

See Also