nano ~/.bash_profile
getAmpCache(){
curl -s -L -o /dev/null -w "\n \n AMP URL : $1 | AMP cache URL: %{url_effective} \n \n" https://cdn.ampproject.org/c/s/$1
}
. ~/.bash_profile
In your terminal ( remove HTTPs:// )
getAmpCache amp-tracking.glitch.me/