Ah, good point! That was just to show the header. We have a bit different logic in our actual application where we check a number of IPs too, including 1.1.1.1:

Ah, good point! That was just to show the header. We have a bit different logic in our actual application where we check a number of IPs too, including 1.1.1.1: $ curl -sI http://1.1.1.1 http://1.1.1.1 | grep Date