Probe Server Changes [TX, AR] and Removal [SE]

The following probe server will be removed on 2018/12/12:

Goeteborg, Sweden (SE) – SE
( / 2a02:7aa0:1619::4b6a:706a)

The following probe servers will be changing IP addresses on 2018/12/12:

Dallas, Texas (TX) – USA

( / 2604:6600:2000:c::2)
( / 2607:fcd0:da80:4300::10)

Federal, Argentina (AR) – AR



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 – 2018-12-12 15:08GMT-6] – IP changes and probe removal complete.