Pingback
A pingback is a notification between publishing systems that reports the existence of a link to a post. Its operation includes checking the link in compatible systems
What it means, how it is used and where it comes up, with its related concepts.
What it is and how it works
It is related to trackback, another notification mechanism, but the two should not be distinguished solely as automatic versus manual sending. Notifications can be used to promote abusive content and need moderation. This entry preserves the concept within the history and operation of blogs.
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