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[1] Draft: PubSubHubbub Core 0.1 -- Working Draft (2009-07-20 07:31:37 +09:00 版) <http://pubsubhubbub.googlecode.com/svn/trunk/pubsubhubbub-core-0.1.html>

[2] RFC 5988 - Web Linking ( (2012-03-22 09:19:11 +09:00 版)) <http://tools.ietf.org/html/rfc5988#page-13>

[3] RssFeeds - pubsubhubbub - Support of RSS in PubSubHubbub - A simple, open, webhook based pubsub protocol & open source reference implementation. - Google Project Hosting (2015-01-27 16:07:48 +09:00 版) <https://code.google.com/p/pubsubhubbub/wiki/RssFeeds>

[4] Draft: PubSubHubbub Core 0.4 -- Working Draft (2015-03-16 20:29:54 +09:00 版) <https://pubsubhubbub.googlecode.com/git/pubsubhubbub-core-0.4.html>

The HTTP [RFC2616] response from the publisher MUST include at least one Link Header [RFC5988] with rel=hub (a hub link header)

[5] (2016-03-19 16:58:58 +09:00 版) <https://pukiwiki.logue.be/?cmd=feed>

<atom:link rel="hub" href="https://pubsubhubbub.appspot.com"/>
<atom:link rel="hub" href="https://pubsubhubbub.superfeedr.com"/>

hub