Monitoring Network

We monitor your websites and servers from a network of 51 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 Orlando, Florida, USAOrlando, Florida, USA
16 Montreal 1, Quebec, CanadaMontreal 1, Quebec, Canada
17 Montreal 2, Quebec, CanadaMontreal 2, Quebec, Canada
18 Coventry, UKCoventry, UK
19 Maidenhead, UKMaidenhead, UK
20 Reading, UKReading, UK
21 Paris, FranceParis, France
22 Amsterdam, NetherlandsAmsterdam, Netherlands
23 Dronten, NetherlandsDronten, Netherlands
24 Rotterdam, NetherlandsRotterdam, Netherlands
25 The Hague, NetherlandsThe Hague, Netherlands
26 Frankfurt, GermanyFrankfurt, Germany
27 Zurich, SwitzerlandZurich, Switzerland
28 Milan, ItalyMilan, Italy
29 Rome, ItalyRome, Italy
30 Vienna, AustriaVienna, Austria
31 Stockholm, SwedenStockholm, Sweden
32 Warsaw, PolandWarsaw, Poland
33 Siauliai, LithuaniaSiauliai, Lithuania
34 Iasi, RomaniaIasi, Romania
35 Chisinau, MoldovaChisinau, Moldova
36 Sofia, BulgariaSofia, Bulgaria
37 Jaipur, IndiaJaipur, India
38 Tokyo, JapanTokyo, Japan
39 Osaka, JapanOsaka, Japan
40 Hong Kong SAR 1, ChinaHong Kong SAR 1, China
41 Hong Kong SAR 2, ChinaHong Kong SAR 2, China
42 Hong Kong SAR 3, ChinaHong Kong SAR 3, China
43 Bangkok, ThailandBangkok, Thailand
44 Singapore 1Singapore 1
45 Singapore 2Singapore 2
46 Brisbane, AustraliaBrisbane, Australia
47 Sydney, AustraliaSydney, Australia
48 Auckland, New ZealandAuckland, New Zealand
49 Christchurch, New ZealandChristchurch, New Zealand
50 Buenos Aires, ArgentinaBuenos Aires, Argentina
51 Johannesburg, South AfricaJohannesburg, South Africa