Locations and IPs.
Here is the list of our IPs so you can allow-list them if needed.
Home / Help Center / Locations
Download all IPs for allow-listing in .txt format.
IMPORTANT: On October 16th we updated our core monitoring infrastructure, adding these new IPs:
2600:1f14:203:e40d:c86b:1e24:fab4:7d03
2600:1f14:203:e48b:5538:77b2:6e13:4f8d
2600:1f14:203:e46c:6c8c:bcb:5245:7a0c
UptimeRobot uses a distributed monitoring system to minimize false-positives.
All primary checks are made from the main engines in Dallas-USA. However, once a downtime is detected, secondary requests to verify this downtime is sent from remote nodes that are located in different countries/continents.
Allow-listing.
If the monitoring works well for you, there is no need to take any action. However, if you receive any false positives, there is a strong chance that the IPs used are blocked by your hosting provider. Learn more about all the reasons for monitor downtime in detail.
Please make sure that you allow-list these IPs so that any requests that UptimeRobot send are not blocked.
Locations and IPs.
The main monitoring location is in Dallas-USA and there are other nodes in other countries/continents to verify down statuses.
Here are some of our IP addresses, organized by location, that we use to double-check the outage from a different location.
IPv4.
216.144.250.150
69.162.124.226
69.162.124.227
69.162.124.228
69.162.124.229
69.162.124.230
69.162.124.231
69.162.124.232
69.162.124.233
69.162.124.234
69.162.124.235
69.162.124.236
69.162.124.237
69.162.124.238
63.143.42.242
63.143.42.243
63.143.42.244
63.143.42.245
63.143.42.246
63.143.42.247
63.143.42.248
63.143.42.249
63.143.42.250
63.143.42.251
63.143.42.252
63.143.42.253
216.245.221.82
216.245.221.83
216.245.221.84
216.245.221.85
216.245.221.86
216.245.221.87
216.245.221.88
216.245.221.89
216.245.221.90
216.245.221.91
216.245.221.92
216.245.221.93
208.115.199.18
208.115.199.19
208.115.199.20
208.115.199.21
208.115.199.22
208.115.199.23
208.115.199.24
208.115.199.25
208.115.199.26
208.115.199.27
208.115.199.28
208.115.199.29
208.115.199.30
216.144.248.18
216.144.248.19
216.144.248.20
216.144.248.21
216.144.248.22
216.144.248.23
216.144.248.24
216.144.248.25
216.144.248.26
216.144.248.27
216.144.248.28
216.144.248.29
216.144.248.30
46.137.190.132
122.248.234.23
167.99.209.234
178.62.52.237
54.79.28.129
54.94.142.218
104.131.107.63
54.67.10.127
54.64.67.106
159.203.30.41
46.101.250.135
18.221.56.27
52.60.129.180
159.89.8.111
146.185.143.14
139.59.173.249
165.227.83.148
128.199.195.156
138.197.150.151
34.233.66.117
52.70.84.165
54.225.82.45
54.224.73.211
3.79.92.117
3.21.136.87
35.170.215.196
35.153.243.148
18.116.158.121
18.223.50.16
54.241.175.147
3.212.128.62
52.22.236.30
54.167.223.174
3.12.251.153
52.15.147.27
18.116.205.62
3.20.63.178
13.56.33.4
52.8.208.143
34.198.201.66
35.84.118.171
44.227.38.253
35.166.228.98
99.80.173.191
99.80.1.74
3.111.88.158
13.127.188.124
18.180.208.214
54.249.170.27
3.105.190.221
3.105.133.239
78.47.98.55
157.90.155.240
49.13.24.81
168.119.96.239
157.90.156.63
88.99.80.227
49.13.134.145
49.13.130.29
168.119.53.160
142.132.180.39
49.13.164.148
128.140.106.114
78.47.173.76
159.69.158.189
128.140.41.193
167.235.143.113
49.13.167.123
78.46.215.1
78.46.190.63
168.119.123.75
135.181.154.9
37.27.87.149
37.27.34.49
37.27.82.220
65.109.129.165
37.27.28.153
37.27.29.68
37.27.30.213
65.109.142.78
65.109.8.202
5.161.75.7
5.161.61.238
5.78.87.38
5.78.118.142
IPv6.
2607:ff68:107::3
2607:ff68:107::4
2607:ff68:107::5
2607:ff68:107::6
2607:ff68:107::7
2607:ff68:107::8
2607:ff68:107::9
2607:ff68:107::10
2607:ff68:107::11
2607:ff68:107::12
2607:ff68:107::13
2607:ff68:107::14
2607:ff68:107::15
2607:ff68:107::16
2607:ff68:107::17
2607:ff68:107::18
2607:ff68:107::19
2607:ff68:107::20
2607:ff68:107::21
2607:ff68:107::22
2607:ff68:107::23
2607:ff68:107::24
2607:ff68:107::25
2607:ff68:107::26
2607:ff68:107::27
2607:ff68:107::28
2607:ff68:107::29
2607:ff68:107::30
2607:ff68:107::31
2607:ff68:107::32
2607:ff68:107::33
2607:ff68:107::34
2607:ff68:107::35
2607:ff68:107::36
2607:ff68:107::37
2607:ff68:107::38
2607:ff68:107::39
2607:ff68:107::40
2607:ff68:107::41
2607:ff68:107::42
2607:ff68:107::43
2607:ff68:107::44
2607:ff68:107::45
2607:ff68:107::46
2607:ff68:107::47
2607:ff68:107::48
2607:ff68:107::49
2607:ff68:107::50
2607:ff68:107::51
2607:ff68:107::52
2607:ff68:107::53
2607:ff68:107::54
2607:ff68:107::55
2607:ff68:107::56
2607:ff68:107::57
2607:ff68:107::58
2607:ff68:107::59
2607:ff68:107::60
2607:ff68:107::61
2607:ff68:107::62
2a03:b0c0:2:d0::fa3:e001
2a03:b0c0:1:d0::e54:a001
2604:a880:800:10::4e6:f001
2604:a880:cad:d0::122:7001
2a03:b0c0:3:d0::33e:4001
2600:1f16:775:3a01:70d6:601a:1eb5:dbb9
2600:1f11:56a:9000:23:651b:dac0:9be4
2a03:b0c0:3:d0::44:f001
2a03:b0c0:0:1010::2b:b001
2a03:b0c0:1:d0::22:5001
2604:a880:400:d0::4f:3001
2400:6180:0:d0::16:d001
2604:a880:cad:d0::18:f001
2600:1f18:179:f900:88b2:b3d:e487:e2f4
2600:1f18:179:f900:1977:916:ee3d:711e
2a05:d014:1815:3400:588a:ee17:65c3:3b09
2600:1f16:775:3a00:b729:c226:2737:fe49
2600:1f1c:edf:1401:2124:652e:c5df:f89b
2600:1f16:775:3a00:acb7:ec84:11f2:2bf4
2600:1f16:775:3a00:66b2:530c:e48:573e
2600:1f18:179:f900:803:c81e:6059:b78f
2600:1f18:179:f900:473d:7e21:19be:3b9d
2600:1f1c:edf:1401:bd68:1478:fe7d:c02f
2600:1f1c:edf:1401:619b:f188:3403:94c8
2600:1f16:775:3a00:8c2c:2ba6:778f:5be5
2600:1f16:775:3a00:ac3:c5eb:7081:942e
2600:1f16:775:3a00:dbbe:36b0:3c45:da32
2600:1f16:775:3a00:37bf:6026:e54a:f03a
2600:1f18:179:f900:4696:7729:7bb3:f52f
2600:1f18:179:f900:4b7d:d1cc:2d10:211
2600:1f18:179:f900:5c68:91b6:5d75:5d7
2600:1f18:179:f900:71:af9a:ade7:d772
2600:1f14:203:e40d:c86b:1e24:fab4:7d03
2600:1f14:203:e48b:5538:77b2:6e13:4f8d
2600:1f14:203:e46c:6c8c:bcb:5245:7a0c
2a01:4f8:c013:34c0::/64
2a01:4f8:c013:3c52::/64
2a01:4f8:c013:3c53::/64
2a01:4f8:c013:c18::/64
2a01:4f8:c012:c60e::/64
2a01:4f8:c013:3c55::/64
2a01:4f8:c17:42e4::/64
2a01:4f8:c013:3c54::/64
2a01:4f8:c013:3c56::/64
2a01:4f8:c013:3b0f::/64
2a01:4f8:1c1b:7ecc::/64
2a01:4f8:1c1c:5353::/64
2a01:4f8:1c1b:4ef4::/64
2a01:4f8:1c1b:5b5a::/64
2a01:4f8:1c1c:11aa::/64
2a01:4f8:1c1c:7240::/64
2a01:4f8:c0c:83fa::/64
2a01:4f8:c2c:beae::/64
2a01:4f8:c2c:9fc6::/64
2a01:4f8:1c1c:a98a::/64
2a01:4f9:c010:b473::/64
2a01:4f9:c012:d5a6::/64
2a01:4f9:c012:a954::/64
2a01:4f9:c010:dc03::/64
2a01:4f9:c012:592a::/64
2a01:4f9:c010:e70b::/64
2a01:4f9:c012:97c5::/64
2a01:4f9:c012:b246::/64
2a01:4f9:c012:a544::/64
2a01:4ff:f0:e9cf::/64
2a01:4ff:f0:b2f2::/64
2a01:4ff:1f0:9092::/64
2a01:4ff:1f0:e821::/64
Locations.
104.131.107.63 - 2604:a880:800:10::4e6:f001 (New York - USA)
122.248.234.23 (Singapore)
128.199.195.156 - 2400:6180:0:d0::16:d001 (Singapore-2)
138.197.150.151 - 2604:a880:cad:d0::18:f001 (Toronto-2 - Canada)
139.59.173.249 - 2a03:b0c0:1:d0::22:5001 (London-2 - UK)
146.185.143.14 - 2a03:b0c0:0:1010::2b:b001 (Amsterdam-2 - Netherlands)
159.203.30.41 - 2604:a880:cad:d0::122:7001 (Toronto - Canada)
159.89.8.111 - 2a03:b0c0:3:d0::44:f001 (Frankfurt-2 - Germany)
165.227.83.148 - 2604:a880:400:d0::4f:3001 (New York-2 - USA)
178.62.52.237 - 2a03:b0c0:1:d0::e54:a001 (London - UK)
18.221.56.27 - 2600:1f16:775:3a01:70d6:601a:1eb5:dbb9 (Ohio - USA)
167.99.209.234 - 2a03:b0c0:2:d0::fa3:e001 (Amsterdam - Netherlands)
216.144.250.150 (Dallas - USA)
34.233.66.117 - 2600:1f18:179:f900:88b2:b3d:e487:e2f4 (Virginia - USA)
46.101.250.135 - 2a03:b0c0:3:d0::33e:4001 (Frankfurt - Germany)
46.137.190.132 (Dublin - Ireland)
52.60.129.180 - 2600:1f11:56a:9000:23:651b:dac0:9be4 (remote13.uptimerobot.com) (Montreal - Canada)
54.64.67.106 (Tokyo - Japan)
54.67.10.127 (California - USA)
54.79.28.129 (Sydney - Australia)
54.94.142.218 (Sao Paulo - Brazil)
52.70.84.165 (Notifications) (Virginia - USA)
54.225.82.45 (Notifications) (Virginia - USA)
3.21.136.87 (Ohio - USA)
18.116.158.121 (Ohio - USA)
18.223.50.16 (Ohio - USA)
54.224.73.211 (Virginia - USA)
35.170.215.196 (Virginia - USA)
35.153.243.148 (Virginia - USA)
54.241.175.147 (California - USA)
P.S. Remote nodes currently have dynamic IPv6 addresses and they are not mentioned for this reason.
Tips for adding our monitoring IPs to your firewall.
1. Windows Defender Firewall
- How to Add an IP Address to the Allow List:
- Open Windows Defender Firewall with Advanced Security.
- Click on Inbound Rules New Rule.
- Select Custom for the Rule Type and click Next.
- In the Scope tab, under Remote IP address, select These IP addresses and click Add.
- Enter our monitoring IP addresses and click OK.
- Complete the wizard to create the rule.
Official Documentation:
- How to Allow an IP Address:
- Open your terminal.
- Run the following command for each IP address:
sudo iptables -A INPUT -s [IP_ADDRESS] -j ACCEPT - Save the iptables configuration to ensure changes persist after reboot.
Official Documentation:
- How to Allow an IP Address:
- Open your terminal.
- Run the command:
sudo ufw allow from [IP_ADDRESS] - Reload UFW to apply changes:
sudo ufw reload
Official Documentation:
- How to Create an Access Rule:
- Log in to the Cisco ASDM or CLI.
- Navigate to Configuration > Firewall > Access Rules.
- Add a new rule permitting traffic from our monitoring IPs to your server.
- Apply and save the configuration.
Official Documentation:
- How to Create a Security Policy Rule:
- Log in to the Palo Alto Networks web interface.
- Go to Policies > Security.
- Click Add to create a new rule.
- In the Source tab, add our monitoring IPs.
- Define the necessary parameters and click OK.
- Commit the changes.
Official Documentation:
- How to Add an Address and Policy:
- Log in to the FortiGate web interface.
- Go to Policy & Objects > Addresses and create a new address for our IPs.
- Navigate to Firewall Policy and create a new policy allowing traffic from the new address to your internal network.
- Move the policy to the correct sequence and save.
Official Documentation:
- How to Add an Access Rule:
- Open SmartConsole and connect to your management server.
- Go to Security Policies.
- Add a new rule allowing traffic from our monitoring IPs to your resources.
- Install the policy to apply changes.
Official Documentation:
- How to Create a Firewall Access Rule:
- Log in to the SonicWall web interface.
- Navigate to Rules > Access Rules.
- Click Add to create a new rule allowing our monitoring IPs.
- Configure the necessary settings and save.
Official Documentation: