We have built this massive list of monitoring checkpoints to be as close to our customers as possible. Our clients are free to choose from any of these checkpoints to get the best website monitoring service on the market.

You can find a plain list of IP addresses for whitelisting here.

North America

Country	City	Status	IP address
United States	San Francisco (CA)	Alive	137.184.94.36
	Fremont (CA)	Alive	45.56.89.150
	New York City (NY)	Alive	74.119.194.122
	Dallas (TX)	Alive	209.145.48.145
	Orlando (FL)	Alive	92.38.133.18
	Atlanta (GA)	Alive	155.138.203.9
	Austin (TX)	Alive	208.81.246.2
	Boston (MA)	Alive	192.34.85.32
	Chicago (IL)	Alive	154.12.235.24
	Denver (CO)	Alive	192.73.242.94
	Honolulu (HI)	Alive	208.72.155.80
	Houston (TX)	Alive	216.230.231.22
	Las Vegas (NV)	Alive	5.226.169.22
	Los Angeles (CA)	Alive	149.248.7.54
	Miami (FL)	Alive	45.77.166.217
	Newark (DE)	Alive	64.115.146.31
	Phoenix (AZ)	Alive	184.95.56.23
	Portland (OR)	Alive	45.76.247.38
	Sacramento (CA)	Alive	208.17.90.75
	San Diego (CA)	Alive	92.223.30.35
	Seattle (WA)	Alive	154.53.63.67
	Tampa (FL)	Alive	162.252.175.30
	Washington D.C.	Alive	205.143.207.95
	New Jersey (NJ)	Alive	207.246.87.204
	Ashburn (VA)	Alive	5.188.214.23
	Marietta (GA)	Alive	31.13.213.16
	Detroit (MI)	Alive	162.247.76.194
	Philadelphia (PA)	Alive	65.79.190.94
	Santa Clara (CA)	Alive	92.38.149.59
	Silicon Valley (CA)	Alive	45.32.139.74
	Hartford (CT)	Alive	159.247.33.53
	Naperville (IL)	Alive	37.9.35.49
	Indianapolis (IN)	Alive	168.214.152.25
	Milwaukee (WI)	Alive	137.220.57.16
	Baltimore (MD)	Alive	162.255.162.52
	Fort Worth (TX)	Alive	155.138.241.31
	Cleveland (OH)	Alive	65.25.83.5
	Salt Lake City (UT)	Alive	155.97.137.59
Canada	Toronto	Alive	158.69.124.159
	Montreal	Alive	158.69.63.98
	Vancouver	Alive	192.71.227.46
Mexico	Mexico City	Alive	216.238.71.251
Mexico	Santiago de Querétaro	Alive	89.223.88.11

Europe

Country	City	Status	IP address
Austria	Vienna	Alive	158.255.211.83
Austria	Graz	Alive	151.236.9.94
Belgium	Brussels	Alive	192.71.249.132
	Antwerpen	Alive	34.77.51.213
	Gent	Alive	176.62.160.65
Bulgaria	Sofia	Alive	77.91.100.135
Denmark	Aarhus	Alive	93.160.88.253
	Odense	Alive	95.164.10.119
	Copenhagen	Alive	192.36.27.88
Finland	Helsinki	Alive	185.231.206.189
United Kingdom	London	Alive	51.77.119.24
	London #2	Alive	51.75.170.220
	Edinburgh	Alive	45.137.151.66
	Glasgow	Alive	78.141.198.130
	Manchester	Alive	151.236.222.59
	Canary Wharf	Alive	91.132.95.21
	Portsmouth	Alive	149.102.128.13
	Sheffield	Alive	37.61.229.225
	Bristol	Alive	209.97.180.220
Germany	Berlin	Alive	45.137.148.23
	Frankfurt	Alive	94.131.109.96
	Bremen	Alive	82.198.223.25
	Cologne	Alive	51.68.180.180
	Düsseldorf	Alive	185.215.167.180
	Hamburg	Alive	212.53.132.25
	Leipzig	Alive	78.46.1.53
	Munich	Alive	80.190.158.99
	Nuremberg	Alive	51.77.66.139
	Falkenstein	Alive	188.40.52.12
	Dresden	Alive	89.15.2.21
	Erfurt	Alive	62.157.212.26
	Stuttgart	Alive	149.154.159.228
Greece	Athens	Alive	185.234.52.140
Ukraine	Kyiv	Alive	5.188.6.199
Hungary	Budapest	Alive	77.91.72.211
Ireland	Dublin	Alive	91.250.249.214
Luxembourg	Luxembourg	Alive	45.80.209.100
Netherlands	Amsterdam	Alive	185.170.213.209
	Haarlem	Alive	78.141.214.15
	Rotterdam	Alive	151.236.14.167
	Utrecht	Alive	94.131.105.224
Norway	Bjerke	Alive	95.164.84.180
Norway	Oslo	Alive	194.68.32.40
Poland	Warsaw	Alive	79.137.70.228
	Poznan	Alive	151.236.25.95
	Łódź	Alive	195.162.24.81
	Kraków	Alive	37.235.48.147
Portugal	Lisbon	Alive	5.182.39.59
Portugal	Porto	Alive	80.251.169.141
Romania	Bucharest	Alive	94.131.119.234
Russia	Moscow	Alive	92.38.139.86
	Saint Petersburg	Alive	92.223.65.27
	Khabarovsk	Alive	92.38.129.204
	Yekaterinburg	Alive	92.223.109.10
Slovakia	Bratislava	Alive	92.60.51.1
Slovenia	Ljubljana	Alive	192.71.244.47
Lithuania	Vilnius	Alive	192.36.61.24
Latvia	Riga	Alive	192.36.41.52
Estonia	Tallinn	Alive	95.164.8.17
Croatia	Zagreb	Alive	46.183.184.11
Spain	Barcelona	Alive	83.247.129.6
	Madrid	Alive	185.170.212.204
	Seville	Alive	37.235.53.104
France	Strasbourg	Alive	152.228.133.230
	Paris	Alive	185.170.214.187
	Lyon	Alive	158.255.215.105
	Marseille	Alive	195.64.164.81
	Roubaix	Alive	51.255.95.82
	Gravelines	Alive	162.19.66.220
Italy	Rome	Alive	95.164.46.18
	Milan	Alive	92.223.79.42
	Bologna	Alive	5.90.1.4
	Turin	Alive	5.89.17.34
Czech Republic	Prague	Alive	193.43.147.200
Sweden	Stockholm	Alive	185.243.215.192
	Malmö	Alive	70.34.204.185
	Göteborg	Alive	178.73.210.249
Switzerland	Bern	Alive	159.144.158.96
	Geneva	Alive	5.182.36.138
	Zurich	Alive	178.209.50.220
Turkey	Istanbul	Alive	193.57.136.107
Moldova	Chisinau	Alive	45.84.0.25

South America

Country	City	Status	IP address
Argentina	Buenos Aires	Alive	200.42.136.21
Brazil	Brasília	Alive	189.40.216.10
	Sao Paolo	Alive	216.238.110.248
	Fortaleza	Alive	5.252.24.165
Chile	Santiago	Alive	216.73.159.125
Peru	Lima	Alive	87.121.99.218
Panama	Panama City	Alive	186.72.79.24

Asia

Country	City	Status	IP address
Japan	Tokyo	Alive	45.77.178.221
	Nagoya	Alive	155.133.7.23
	Osaka	Alive	64.176.38.5
	Sapporo	Alive	103.19.2.131
Singapore	Singapore	Alive	51.79.240.138
Singapore	Singapore #2	Alive	194.233.94.210
China	Beijing	Alive	39.105.113.253
	Shanghai	Alive	43.240.124.23
	Shenzen	Alive	158.255.208.25
Kazakhstan	Almaty	Alive	213.156.137.134
Vietnam	Hanoi	Alive	38.54.30.93
Hong Kong	Hong Kong	Alive	74.119.193.147
India	Chennai	Alive	14.139.160.70
	Bengalore	Alive	128.199.17.77
	Mumbai	Alive	65.20.67.148
	New Delhi	Alive	139.84.162.156
Indonesia	Jakarta	Alive	38.60.191.155
South Korea	Seoul	Alive	158.247.203.244
Malaysia	Kuala Lumpur	Alive	38.54.97.12
Philippines	Manila	Alive	38.54.36.13
Taiwan	Taipei	Alive	38.54.107.219
Thailand	Bangkok	Alive	38.54.33.193
Cambodia	Phnom Penh	Alive	38.54.4.225

Oceania

Country	City	Status	IP address
Australia	Sydney	Alive	139.99.236.25
	Adelaide	Alive	146.185.214.151
	Brisbane	Alive	172.105.180.165
	Canberra	Alive	45.76.117.187
	Melbourne	Alive	67.219.101.98
	Perth	Alive	154.26.155.233
New Zealand	Auckland	Alive	103.208.86.179

Middle East

Country	City	Status	IP address
Bahrain	Manamah	Alive	87.237.196.10
Israel	Tel Aviv	Alive	77.91.74.201
Saudi Arabia	Riyadh	Alive	95.177.214.34
United Arab Emirates	Dubai	Alive	38.54.75.244
Qatar	Doha	Alive	213.130.121.18

Africa

Country	City	Status	IP address
Egypt	Cairo	Alive	213.158.188.34
South Africa	Johannesburg	Alive	5.188.133.208
South Africa	Cape Town	Alive	197.98.12.17