Trackback
A trackback is a notification mechanism between publications that communicates a reference to other content. It may provide an excerpt and a link to the site sending the notification
What it means, how it is used and where it comes up, with its related concepts.
What it is and how it works
Sending may occur through publishing processes, so it should not be defined as exclusively manual. Its relationship with pingback depends on the protocol and checks performed. It is retained as a reference to conversation between blogs and the need to moderate notifications susceptible to abuse.
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