You can let other bloggers know that you’ve linked to their content on your website by using pingback. Although there are a few tiny technical distinctions, a trackback and pingback are essentially the same thing.
They will be notified that you have linked to their content if the other blogger or author’s website supports pingbacks. Then, they can decide whether to publish your link on their website. Pingbacks on your site could or might not display an excerpt from the linked blog, depending on how your WordPress theme is set up.
In the Discussion Settings of your Admin Panels, you may decide whether to allow or restrict pingbacks. WordPress will tell other blog owners when you link to theirs by ticking the box that says “try to notify any blogs linked to from the article.” In other words, a pingback will be sent to them.
You will get trackbacks when other authors link to your content if you select the box next to “Allow link notifications from other blogs (pingbacks and trackbacks.)” These will consistently appear in your admin panel where comments would typically appear. Your theme, not your WordPress settings, determines whether they appear on specific posts.