Chrome Slow to Resolve /etc/hosts on macOS / OS X

I had the same issue in Chrome 64.0.3282.167 on macOS High Sierra (10.13.3) and this StackOverflow answer solved it for me:


Put all your hosts file entries for localhost into one line like so: localhost 
::1 localhost

Have you tried running dtruss on chrome to see what it is doing when it hangs?