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Monitoring Network

We monitor your websites and servers from a network of 48 worldwide monitoring stations. This helps to reduce and eliminate false alarms.

Global Monitoring Locations

Below are information of our monitoring stations, they are subject to change without prior notice. If you use this information for setting up your firewall, please subscribe to the "Changes of monitoring network" mailing (login to your account, go to Account -> Account Settings) so that we can notify you whenever there is a change in our IP addresses.

You may also subscribe to our XML feed.


No. Monitoring Station IP Address
North America
1 Seattle, Washington, USASeattle, Washington, USA 216.176.179.82
2 Bend, Oregon, USABend, Oregon, USA 94.158.244.7
3 Fremont, California, USAFremont, California, USA 142.147.94.149
4 Los Angeles 1, California, USALos Angeles 1, California, USA 67.215.229.210
5 Los Angeles 2, California, USALos Angeles 2, California, USA 38.170.230.250
6 Los Angeles 3, California, USALos Angeles 3, California, USA 108.181.25.161
7 Phoenix, Arizona, USAPhoenix, Arizona, USA 209.188.15.100
8 Dallas 1, Texas, USADallas 1, Texas, USA 74.117.132.254
9 Dallas 2, Texas, USADallas 2, Texas, USA 108.181.54.35
10 Dallas 3, Texas, USADallas 3, Texas, USA 45.59.163.130
11 Chicago, Illinois, USAChicago, Illinois, USA 68.235.39.99
12 Lansing, Michigan, USALansing, Michigan, USA 67.225.218.51
13 Buffalo, New York, USABuffalo, New York, USA 23.236.155.2
14 Secaucus, New Jersey, USASecaucus, New Jersey, USA 163.123.140.138
15 Montreal 1, Quebec, CanadaMontreal 1, Quebec, Canada 199.16.128.31
16 Montreal 2, Quebec, CanadaMontreal 2, Quebec, Canada 173.209.42.57
Europe
17 Coventry, UKCoventry, UK 78.157.209.245
18 Maidenhead, UKMaidenhead, UK 91.206.183.42
19 Reading, UKReading, UK 185.26.150.121
20 Paris, FranceParis, France 146.88.233.119
21 Amsterdam, NetherlandsAmsterdam, Netherlands 95.211.10.34
22 Dronten, NetherlandsDronten, Netherlands 185.10.57.32
23 Rotterdam, NetherlandsRotterdam, Netherlands 213.163.72.163
24 The Hague, NetherlandsThe Hague, Netherlands 185.126.34.199
25 Frankfurt, GermanyFrankfurt, Germany 147.78.179.101
26 Zurich, SwitzerlandZurich, Switzerland 79.142.69.17
27 Milan, ItalyMilan, Italy 5.144.160.79
28 Rome, ItalyRome, Italy 80.241.140.90
29 Vienna, AustriaVienna, Austria 77.244.250.227
30 Stockholm, SwedenStockholm, Sweden 31.3.155.130
31 Warsaw, PolandWarsaw, Poland 146.59.10.156
32 Siauliai, LithuaniaSiauliai, Lithuania 213.252.244.174
33 Iasi, RomaniaIasi, Romania 185.225.17.93
34 Chisinau, MoldovaChisinau, Moldova 185.163.45.98
35 Sofia, BulgariaSofia, Bulgaria 79.142.70.105
Asia/Pacific
36 Jaipur, IndiaJaipur, India 103.10.234.171
37 Tokyo, JapanTokyo, Japan 103.121.209.224
38 Osaka, JapanOsaka, Japan 103.88.45.14
39 Hong Kong SAR 1, ChinaHong Kong SAR 1, China 103.109.100.141
40 Hong Kong SAR 2, ChinaHong Kong SAR 2, China 180.235.132.75
41 Hong Kong SAR 3, ChinaHong Kong SAR 3, China 45.125.1.28
42 Singapore 1Singapore 1 202.150.208.170
43 Singapore 2Singapore 2 124.6.58.24
44 Brisbane, AustraliaBrisbane, Australia 223.252.37.233
45 Sydney, AustraliaSydney, Australia 103.136.144.13
46 Auckland, New ZealandAuckland, New Zealand 103.137.135.134
47 Christchurch, New ZealandChristchurch, New Zealand 202.174.114.86
Others
48 Buenos Aires, ArgentinaBuenos Aires, Argentina 190.106.128.138