A few months ago, Cloudflare accidentally turned off 1.1.1.1 (I’m simplifying slightly, most notably DNS-over-HTTPS continued to work). Over the course of five or six minutes, traffic dropped to 10% of normal, and stayed there. Somehow, it took another six minutes before an alert fired, at which point they noticed. https://news.ycombinator.com/item?id=44578490 You’d think that for such a company they’d notice if glob…
edit: I should have followed your link before commenting, because this sentiment is well covered there.