A "Rammerhead proxy list" is simply a collection of active, tested URLs that point to functioning Rammerhead instances. These lists are maintained by open-source communities, cybersecurity researchers, and proxy aggregators.
while read proxy; do curl -s -o /dev/null -w "%http_code\t%time_totals\t$proxy\n" --proxy "http://$proxy" "https://rammerhead.org/test" done < proxies.txt rammerhead proxy list better