Webmention syndication

From IndieWeb

Webmention syndication is the use of the Webmention protocol as a syndication API, by having an original post link to a service’s special URL, then sending a webmention from that post to that service, causing the service to syndicate the post on itself (like IndieNews or indieweb.xyz) or to another service (like have Bridgy publish to a silo on your behalf).