Getting rid of website URL when Sharing a post to Facebook

I run a satirical news website and I’m running into a problem. Whenever I post something to our Facebook page, the website shows up below. I want to know how I can make it so when I post an article from my website, the URL doesn’t show up at the bottom.

I don’t know if this is a WordPress issue or a Facebook issue.

The website is https://www.driftmouse.com

Try pasting it onto your Facebook update and you’ll see what I mean. I can delete “Driftmouse” right after the article title, but not https://www.driftmouse.com at the bottom.

Thanks!