https://computer.howstuffworks.com/internet/basics/internet-collapse.htm

https://www.grunge.com/471791/this-is-what-would-happen-if-the-internet-collapsed/

https://www.allconnect.com/blog/what-would-happen-if-internet-down-for-day

https://www.bbc.com/future/article/20170207-what-if-the-internet-stopped-f