Free tool
Firewall rules for our probe addresses
Every check comes from a machine on this list. Paste the rule your firewall speaks, and the checks get through, including the ones we add later, because this reads the live file rather than a copy.
Allow PingFleet through your firewall
Pick a format. The addresses come from /ips.json as this page loads, so what you copy is what the fleet is now, not what it was when somebody wrote the page.
Loading the current fleet…