Monitoring Network

We monitor your websites and servers from a network of 50 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 Chicago, Illinois, USAChicago, Illinois, USA
11 Lansing, Michigan, USALansing, Michigan, USA
12 Buffalo, New York, USABuffalo, New York, USA
13 Secaucus, New Jersey, USASecaucus, New Jersey, USA
14 Orlando, Florida, USAOrlando, Florida, 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 Frankfurt, GermanyFrankfurt, Germany
25 Zurich, SwitzerlandZurich, Switzerland
26 Milan, ItalyMilan, Italy
27 Rome, ItalyRome, Italy
28 Vienna, AustriaVienna, Austria
29 Stockholm, SwedenStockholm, Sweden
30 Warsaw, PolandWarsaw, Poland
31 Siauliai, LithuaniaSiauliai, Lithuania
32 Iasi, RomaniaIasi, Romania
33 Chisinau, MoldovaChisinau, Moldova
34 Sofia, BulgariaSofia, Bulgaria
35 Tehran, IranTehran, Iran
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 Bangkok, ThailandBangkok, Thailand
43 Singapore 1Singapore 1
44 Singapore 2Singapore 2
45 Brisbane, AustraliaBrisbane, Australia
46 Sydney, AustraliaSydney, Australia
47 Auckland, New ZealandAuckland, New Zealand
48 Christchurch, New ZealandChristchurch, New Zealand
49 Buenos Aires, ArgentinaBuenos Aires, Argentina
50 Johannesburg, South AfricaJohannesburg, South Africa