Pingback

A pingback is one of three types of linkbacks, methods for Web authors to request notification when somebody links to one of their documents. This enables authors to keep track of who is linking to, or referring to their articles. Some weblog software, such as Movable Type, Serendipity, WordPress, and Telligent Community, support automatic pingbacks where all the links in a published article can be pinged when the article is published. A number of more advanced content management systems support pingbacks through the use of addons or extensions, including Drupal and Joomla.

Essentially, a pingback is an XML-RPC request (not to be confused with an ICMP ping) sent from Site A to Site B, when an author of the blog at Site A writes a post that links to Site B. However, it also requires a hyperlink. When Site B receives the notification signal, it automatically goes back to Site A checking for the existence of a live incoming link. If that link exists, the pingback is recorded successfully. This makes pingbacks less prone to spam than trackbacks. Pingback-enabled resources must either use an X-Pingback header or contain a <link> element to the XML-RPC script.

See also

• Linkback, the suite of protocols that allows websites to manually and automatically link to one another.
• Refback, a similar protocol but easier than Pingbacks since the site originating the link doesn't have to be capable of sending a Pingback request.
• Trackback, a similar protocol but more prone to spam.
• Search engine optimization

References

External links

• Documentation: Trackbacks / Pingbacks in Serendipity
• WordPress Codex specifications
• Pingback Specifications

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