$ curl -I http://perlmonks.org/?node=Recently+Active+Threads 2>/dev/null | egrep -i 'date|cache|modified'
Date: Mon, 12 Oct 2015 21:43:54 GMT
$ curl -I http://perlmonks.org/?node=Recently+Active+Threads 2>/dev/null | egrep -i 'date|cache|modified'
Date: Mon, 12 Oct 2015 21:43:57 GMT
$ curl -I http://perlmonks.org/?node=Newest+Nodes 2>/dev/null | egrep -i 'date|cache|modified'
Date: Mon, 12 Oct 2015 21:44:07 GMT
$ curl -I http://perlmonks.org/?node=Newest+Nodes 2>/dev/null | egrep -i 'date|cache|modified'
Date: Mon, 12 Oct 2015 21:44:09 GMT