For automatization purposes, you can resolve ips.hetrixtools.com to get all of our Uptime Monitoring IPs.
Uptime Monitoring IP Addresses:
New York:
52.207.41.187
96.126.106.201
52.23.120.125
138.197.17.201
66.165.247.154
149.28.50.248
172.241.23.225
209.222.107.178
23.226.128.254
194.33.45.219
San Francisco:
23.239.7.4
52.52.33.209
149.28.212.239
159.89.159.134
66.165.225.34
23.108.190.195
66.63.177.246
77.247.126.141
Dallas:
104.237.139.48
45.32.204.172
23.227.169.50
172.241.24.83
2.56.188.250
96.44.142.174
Amsterdam:
95.179.139.97
51.15.61.222
188.166.79.172
37.48.96.90
194.126.173.238
51.158.156.63
194.49.53.65
London:
52.56.73.124
139.162.228.62
95.179.193.59
178.62.11.90
51.195.149.151
23.106.61.94
185.174.110.102
103.50.32.15
Frankfurt:
52.59.92.96
78.46.88.58
94.16.112.18
51.195.46.219
178.162.208.86
192.248.181.140
91.239.130.97
Singapore:
52.221.91.160
139.162.22.205
128.199.187.77
45.76.150.238
51.79.156.91
23.106.120.205
107.155.75.66
210.16.67.82
Sydney:
52.65.182.14
45.76.120.140
139.99.169.250
172.105.168.58
103.101.130.73
203.96.179.194
Sao Paulo:
52.67.204.189
104.41.61.219
103.88.233.41
216.238.100.86
189.1.173.35
Tokyo:
52.199.17.123
45.76.202.144
172.104.99.63
23.106.230.203
43.230.163.178
Mumbai:
35.154.5.38
148.113.2.135
172.105.37.103
181.41.142.138
Warsaw:
146.59.0.13
70.34.249.133
5.22.223.148
50.3.181.10
We also always keep updated this text list of our Uptime Monitoring IPs:
https://hetrixtools.com/resources/uptime-monitor-ips.txt
And just IPs here:
https://hetrixtools.com/resources/uptime-monitor-only-ips.txt
Learn what steps are taken when the uptime monitoring infrastructure changes:
https://docs.hetrixtools.com/how-do-we-perform-uptime-monitoring-network-changes/