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
2 Bend, Oregon, USABend, Oregon, USA
3 Fremont, California, USAFremont, California, USA
4 Los Angeles 1, California, USALos Angeles 1, California, USA
5 Los Angeles 2, California, USALos Angeles 2, California, USA
6 Los Angeles 3, California, USALos Angeles 3, California, USA
7 Phoenix, Arizona, USAPhoenix, Arizona, USA
8 Dallas 1, Texas, USADallas 1, Texas, USA
9 Dallas 2, Texas, USADallas 2, Texas, USA
10 Dallas 3, Texas, USADallas 3, Texas, USA
11 Chicago, Illinois, USAChicago, Illinois, USA
12 Lansing, Michigan, USALansing, Michigan, USA
13 Buffalo, New York, USABuffalo, New York, USA
14 Secaucus, New Jersey, USASecaucus, New Jersey, USA
15 Montreal 1, Quebec, CanadaMontreal 1, Quebec, Canada
16 Montreal 2, Quebec, CanadaMontreal 2, Quebec, Canada
17 Coventry, UKCoventry, UK
18 Maidenhead, UKMaidenhead, UK
19 Reading, UKReading, UK
20 Paris, FranceParis, France
21 Amsterdam, NetherlandsAmsterdam, Netherlands
22 Dronten, NetherlandsDronten, Netherlands
23 Rotterdam, NetherlandsRotterdam, Netherlands
24 The Hague, NetherlandsThe Hague, Netherlands
25 Frankfurt, GermanyFrankfurt, Germany
26 Zurich, SwitzerlandZurich, Switzerland
27 Milan, ItalyMilan, Italy
28 Rome, ItalyRome, Italy
29 Vienna, AustriaVienna, Austria
30 Stockholm, SwedenStockholm, Sweden
31 Warsaw, PolandWarsaw, Poland
32 Siauliai, LithuaniaSiauliai, Lithuania
33 Iasi, RomaniaIasi, Romania
34 Chisinau, MoldovaChisinau, Moldova
35 Sofia, BulgariaSofia, Bulgaria
36 Jaipur, IndiaJaipur, India
37 Tokyo, JapanTokyo, Japan
38 Osaka, JapanOsaka, Japan
39 Hong Kong SAR 1, ChinaHong Kong SAR 1, China
40 Hong Kong SAR 2, ChinaHong Kong SAR 2, China
41 Hong Kong SAR 3, ChinaHong Kong SAR 3, China
42 Singapore 1Singapore 1
43 Singapore 2Singapore 2
44 Brisbane, AustraliaBrisbane, Australia
45 Sydney, AustraliaSydney, Australia
46 Auckland, New ZealandAuckland, New Zealand
47 Christchurch, New ZealandChristchurch, New Zealand
48 Buenos Aires, ArgentinaBuenos Aires, Argentina