[1] [CITE@en[Private-Webmention - IndieWeb]]
([TIME[2016-12-21 07:15:51 +09:00]])
<https://indieweb.org/Private-Webmention>

[2] [CITE[First draft of Private Webmention sending • Aaron Parecki]]
([TIME[2017-01-13 17:17:10 +09:00]])
<https://aaronparecki.com/2016/09/30/12/private-webmentions>