Probe Server Changes [AU, AZ] Removal [CH, MO] and Addition [PL]

The following probe servers will be changing IP addresses on 2018/06/06:

Phoenix, Arizona (AZ) – USA is changing from
( / 2602:ff97:0:2:225:90ff:fee5:b89)
( / 2607:f7a0:1:2:225:90ff:fee2:42da)

Sydney, Australia – AU is changing from
( / 2406:d501::3f02:2574)
( / 2402:1f00:8100:230::10)

We’re also adding a new probe to the European region on 2018/06/06:
Warsaw, Poland – PL
( / 2001:41d0:602:4e3::10)

The following probes are being removed on 2018/06/06:

Kansas City, Missouri (MO) – USA
( / 2604:4300:a:9d:202:c9ff:fec0:da0e)

Zurich, Switzerland (CH) – CH
( / 2a06:c01:1:1102::9133:51)

Please adjust your firewalls appropriately if you whitelist so your checks do not fail because of the probe IP address changes.

An always current and updated list of all the IP addresses for our probe servers can be found in the FAQ, a text file, and via DNS query,


[UPDATE – 2018-06-06 13:20GMT-6] – IP changes and probe addition complete.