TrackBack是一种网络日志应用工具，它可以让网志作者知道自己的文章的读者中有哪些人撰写哪些与之有关的文章。在Movable Type和WordPress软件中，包含有该功能。该功能通过在评论中显示引用者的文章链接和评论内容，实现了网站之间的互相通告；实现了网志间的沟通互动，使得更多人加入关于一个主题的讨论。

TrackBack功能一般出现在一个网志文章的下方，同时会显示对方网志的摘要信息、URL和网志标题。

TrackBack规范由Six Apart在2000年制订，并在Movable Type 2.2中予以实现。

A trackback allows one website to notify another about an update. It is one of four types of linkback methods for website authors to request notification when somebody links to one of their documents. This enables authors to keep track of who is linking to their articles. Some weblog software, such as SilverStripe, WordPress, Drupal, and Movable Type, supports automatic pingbacks where all the links in a published article can be pinged when the article is published. The term is used colloquially for any kind of linkback.