ELI5: Explain Like I'm 5

Content delivery network

A content delivery network (CDN) is like a group of super-fast computers that store copies of websites and give those copies to people who want to view the websites. It helps make websites load faster because the computers are closer to the people trying to view the website. So rather than having to get the website from all the way over on the other side of the planet, the CDN can give you the website from just a few steps away.