A trackback 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, and so referring, to their articles.

In layman’s terms, trackback is a way to notify a website when you publish an entry that references it.
When you send it a trackback, a link with a short excerpt of your entry will appear on the referenced website.

How To Locate The Trackback Link

When you want to trackback, you will need to use a special link provided on the blog you want to reference.

Most trackback links appear just after the blog post content and before the comments.

Sometimes the link will appear as a plain text link:

If the trackback URL is hyperlinked, you’ll need to right click on it and select “Copy link location…” (or your browser’s equivalent), otherwise, you can highlight and copy the link.

If you plan to reference more than one blog entry, each trackback URL will need to be copied individually.

(Please note: Not all blogs display their trackback URL in plain view, some blogs even turn off their trackback. When in doubt, contact the blog author.)

Sending A Trackback

Before you publish your blog entry, you’ll need to tell WordPress to send your trackback notices. This automatically done for the newer versions of wordpress. All referenced wordpress blogs are automatically sent a trackback.

Paste the trackback URLs into the box and click Publish to send them and publish the post.

Once you’ve added all the URLs you want to trackback, the moment you hit the Publish button, the blog(s) will be notified.