Re:Google .dev domain early access
by eeeeeeeeeeeee on Saturday February 16, 2019 @01:41PM
(#19180173)
This seems like one of those anti-patterns that has been passed down by blog posts and from engineer-to-engineer. I've seen this in almost every single developer team I've been apart of.
Either way, like you said, people should be using .test so you don't have to worry about future collisions.
.test is the TLD you want, specified by RFC2606.