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DNS Failover and Monitoring nodes

Here is a list with the monitoring nodes used by the DNS Failover & Monitoring systems grouped by region.

Africa:

  1. Nigeria, Lagos - 176.97.192.25 ; 2a06:f901:4001:100::10e:556c
  2. South Africa, Johannesburg - 154.16.63.144, 2604:4500:1c:9::2
  3. South Africa, Johannesburg 2 - 5.188.133.164; 2a03:90c0:1f5::19

Asia-Pacific:

  1. Australia, Melbourne - 67.219.97.173 ; 2401:c080:2000:204d:5400:4ff:fe43:3c76
  2. Australia, Sydney - 45.76.118.140 ; 2001:19f0:5801:75:5400:ff:fe5c:9b82
  3. Australia, Sydney 2 - 35.189.54.154
  4. Australia, Sydney 4 - 103.136.146.45 ; 2a11:3:100::19c
  5. Hong Kong - 35.220.221.214
  6. Hong Kong 2 - 194.156.98.61
  7. Hong Kong 3 - 5.188.33.212; 2a03:90c0:2c6::8a
  8. Hong Kong 4 - 157.119.103.163; 2403:2c80:1000::1bc
  9. India, Bengaluru - 159.89.171.96 ; 2400:6180:100:d0::8d1:d001
  10. India, Delhi - 139.84.163.143 ; 2401:c080:3400:2a33:5400:4ff:fe43:3ce0
  11. India, Mumbai - 35.200.155.154
  12. India, Mumbai 3 - 5.188.228.45; 2a03:90c0:285::fe
  13. India, Pune - 103.250.184.188
  14. Indonesia, Jakarta - 147.139.161.196
  15. Japan, Osaka - 34.85.119.227
  16. Japan, Osaka 2 - 45.14.106.124; 2400:ddc0:c001::219
  17. Japan, Tokyo - 167.179.78.21 ; 2001:19f0:7001:2686:5400:1ff:fedd:88be
  18. Japan, Tokyo 2 - 47.245.60.9
  19. Japan, Tokyo 3 - 195.245.241.199; 2a12:a301:2014::1007
  20. Malaysia, Kuala Lumpur - 47.250.42.170
  21. Malaysia, Kuala Lumpur 2 - 118.107.219.18
  22. Korea, Seoul - 141.164.34.13; 2401:c080:1c01:871:5400:2ff:fefa:b0a6
  23. Philippines, Manila - 8.212.128.33
  24. Singapore - 45.76.186.80 ; 2001:19f0:4400:47de:5400:ff:fe5c:9b8f
  25. Singapore 2 - 159.89.199.69 ; 2400:6180:0:d1::526:4001
  26. Singapore 3 - 172.104.48.221 ; 2400:8901::f03c:92ff:fecd:f54
  27. Singapore 4 - 161.117.253.114 ; 240b:4000:11:8f00::1
  28. Singapore 5 - 5.188.34.83
  29. Taiwan, Taipei - 2.58.241.200 ; 2401:95c0:2ff:ff91:b4d2:585a:13b:653f
  30. Vietnam, Hanoi - 103.70.114.21; 2401:5b60:0:2::1c
  31. Vietnam, Hanoi 2 - 103.15.91.230; 2400:e920:0:7::b1

Europe:

  1. Austria, Graz - 158.255.211.28 ; 2a03:f80:ed15:158:255:211:28:1
  2. Bulgaria, Sofia - 79.98.111.28 ; 2a02:80e0:4::2
  3. Bulgaria, Sofia 2 - 109.94.110.7 ; 2a07:5741:0:15ce::1
  4. Bulgaria, Sofia 3 - 185.183.131.65
  5. Czech Republic, Ceske Budejovice - 185.53.46.65
  6. Czech Republic, Prague - 38.175.112.136 ; 2a0d:5642:107:106:5054:ff:fed2:1247
  7. Estonia, Tallinn - 185.194.53.156; 2a04:6f00:4::166
  8. Finland, Hamina - 35.228.81.131
  9. Finland, Helsinki - 95.216.209.205
  10. Finland, Helsinki 2 - 94.237.36.119 ; 2a04:3540:1000:310:70c6:e5ff:feec:4fab
  11. Finland, Helsinki 3 - 45.159.249.145
  12. France, Lille - 185.154.154.111 ; 2a07:8dc1:20:0:fb:f2ff:fe3b:7f7f
  13. France, Marseille - 185.189.72.136 ; 2a0d:5642:130:a0:5054:ff:fe54:1568
  14. France, Paris - 95.179.213.210 ; 2001:19f0:6801:1f1c:5400:1ff:fedd:88d0
  15. France, Paris 2 - 51.15.220.200
  16. France, Paris 3 - 185.10.19.150 ; 2a07:8dc0:1b:0:ed:5aff:fec3:1efc
  17. Germany, Dusseldorf - 45.131.153.242 ; 2a03:d9c0:2000::19
  18. Germany, Dusseldorf 2 - 89.163.208.152 ; 2001:4ba0:cafe:bad::1
  19. Germany, Falkenstein - 138.201.152.183 ; 2a01:4f8:1c17:6262::1
  20. Germany, Frankfurt - 185.206.180.85 ; 2a0b:1640:1:1:1:1:396:3e6c
  21. Germany, Frankfurt 2 - 84.16.227.216 ; 2a00:c98:2200:af0e:3::1
  22. Germany, Frankfurt 3 - 207.154.199.34 ; 2a03:b0c0:3:d0::d3c:3001
  23. Germany, Frankfurt 4 - 47.91.72.195
  24. Germany, Frankfurt 5 - 89.43.107.248
  25. Hungary, Budapest - 5.181.77.111; 2a03:90c0:395::2da
  26. Ireland, Dublin - 45.150.240.176 ; 2a0f:3b05:101:11c:5054:ff:fea2:6ff9
  27. Italy, Milan - 87.120.237.241; 2a03:90c0:1b5::387
  28. Italy, Palermo - 91.201.65.107 ; 2a06:f905:1:100:300:ffff:131:69cb
  29. Kazakhstan, Almaty* - 213.156.137.229
  30. Latvia, Riga - 45.133.216.162
  31. Lithuania, Vilnius - 195.238.126.160 ; 2a06:f907:1:101::2e7:930a
  32. Moldova, Chisinau - 89.43.111.58
  33. Moldova, Chisinau 2 - 194.180.191.6; 2a0a:c801:1:20::a
  34. Netherlands, Amsterdam - 188.166.115.203 ; 2a03:b0c0:2:d0::657:1
  35. Netherlands, Amsterdam 2 - 77.81.246.3 ; 2a06:cd40:300:1::422
  36. Netherlands, Amsterdam 3 - 51.15.46.158 ; 2001:bc8:1824:2a::1
  37. Netherlands, Amsterdam 4 - 212.32.242.79; 2001:1af8:4700:a400:25::1
  38. Norway, Sandefjord - 185.125.171.35 ; 2a03:94e0:ffff:185:125:171:0:35
  39. Poland, Warsaw - 151.115.37.184
  40. Poland, Warsaw 2 - 5.188.108.21; 2a03:90c0:d5::16
  41. Poland, Warsaw 3 - 185.70.196.227 ; 2a04:3544:8000:1000:70c6:e5ff:feec:61db
  42. Portugal, Lisbon - 188.208.143.112
  43. Romania, Bucharest - 188.241.118.205
  44. Romania, Bucharest 2 - 89.40.214.132, 2a05:91c0:1506:13f::1
  45. Romania, Bucharest 3 - 5.181.25.27
  46. Russian Federation, Moscow - 185.70.105.181
  47. Russian Federation, Moscow 2 - 185.246.154.42 ; 2a06:f900:1:100:7100:7100:30d0:a0c2
  48. Serbia, Belgrade - 45.89.55.51
  49. Slovakia, Bratislava - 45.95.11.135
  50. Spain, Barcelona - 188.241.60.75
  51. Spain, Madrid  - 185.47.128.178 ; 2a03:c7c0:3f::1
  52. Spain, Madrid 2 - 194.62.97.213 ; 2a04:3542:8000:1000:70c6:e5ff:feec:104b
  53. Spain, Madrid 3 - 92.38.171.197
  54. Sweden, Stockholm - 155.4.244.17
  55. Sweden, Stockholm 2 - 45.8.147.53
  56. Sweden, Stockholm 3 - 70.34.221.160; 2a05:f480:2000:12f4:5400:4ff:fe43:3c4b
  57. Switzerland, Bern - 94.131.3.17; 2a11:4c03:0:8::1
  58. Switzerland, Zurich - 185.234.213.145; 2a0d:5641:2101:2f2:5054:ff:fe33:d16f
  59. Turkey, Istanbul - 31.210.52.166
  60. Turkey, Istanbul 2 - 5.188.168.70, 2a03:90c0:164::45
  61. Ukraine, Kyiv - 91.229.78.76
  62. Ukraine, Kyiv 2 - 5.188.6.179
  63. Ukraine, Kyiv 3 - 176.103.61.211; 2a13:f580:1:14::1
  64. United Kingdom, London - 89.32.144.65
  65. United Kingdom, London 2 - 5.252.161.175 ; 2604:4500:1600:5:5:252:161:175
  66. United Kingdom, London 3 - 8.208.78.74
  67. United Kingdom, London 4 - 5.8.33.157, 2a03:90c0:146::14ca
  68. United Kingdom, Maidstone - 91.220.127.165 ; 2a01:6c60:2::3b8d:ed4f

*Kazakhstan geographically is located mostly in Asia, but there is no direct internet connection to Asia and all the traffic goes to Europe and then to Asia. This is why the monitoring node is added to the Europe region.

Middle East:

  1. Israel, Tel Aviv - 185.105.0.142 ; 2a03:90c0:1e5::13c
  2. Israel, Tel Aviv 2 - 64.176.163.189 ; 2a05:f480:2c00:1518:5400:4ff:fe6e:c041
  3. United Arab Emirates, Fujairah - 95.174.68.96 ; 2a06:f902:4001:100::4b00:da0a

North America:

  1. Canada, Toronto - 155.138.130.164 ; 2001:19f0:b001:91b:5400:1ff:fedd:89d1
  2. Canada, Toronto 2 - 172.105.11.235 ; 2600:3c04::f03c:92ff:fed4:efe2
  3. Canada, Toronto 3 - 91.194.11.124
  4. Canada, Montreal - 35.203.124.187
  5. Mexico, Mexico City - 216.238.72.60; 2001:19f0:b400:181a:5400:4ff:fe43:4001
  6. Mexico, Queretaro City - 89.223.88.9; 2a03:90c0:545::1b2
  7. United States, Asheville - 67.23.166.109
  8. United States, Ashburn - 5.188.215.224; 2a03:90c0:25::27a
  9. United States, Ashburn 2 - 5.161.136.212; 2a01:4ff:f0:fd7::1
  10. United States, Ashburn 3 - 45.35.203.98
  11. United States, Chicago - 216.227.189.139
  12. United States, Chicago 2 - 154.127.52.251 ; 2604:4500:1201:0:154:127:52:251
  13. United States, Chicago 3 - 92.38.176.219
  14. United States, Dallas - 69.13.49.217
  15. United States, Dallas 2 - 74.117.156.196
  16. United States, Dallas 3 - 45.136.151.78, 2605:f700:80:40e::56f1:86f
  17. United States, Fremont - 184.75.247.47
  18. United States, Hillsboro - 5.78.40.83 ; 2a01:4ff:1f0:f079::1
  19. United States, Los Angeles - 181.214.242.204 ; 2604:4500:8:11f:181:214:242:204
  20. United States, Los Angeles 2 - 92.223.30.215
  21. United States, Los Angeles 3 - 96.43.91.182; 2607:f130:0:d5:216:3eff:fe27:1bf9
  22. United States, Miami - 144.202.39.78 ; 2001:19f0:9002:c4c:5400:1ff:fe62:f8c1
  23. United States, Miami 2 - 79.133.109.84
  24. United States, New York - 23.159.160.129; 2605:3a40:3::13e
  25. United States, Oregon - 35.230.18.218
  26. United States, San Francisco - 68.183.162.153 ; 2604:a880:2:d0::1f6f:e001
  27. United States, San Francisco 2 - 209.58.140.21 ; 2605:fe80:2100:a013:10::1
  28. United States, Santa Clara - 92.38.149.103
  29. United States, Seattle - 104.238.153.57 ; 2001:19f0:8001:15e2:5400:1ff:fedd:87eb
  30. United States, Seattle 2 - 23.145.48.156; 2605:3a40:4::1cc
  31. United States, Silicon Valley - 47.251.19.150
  32. United States, Washington D.C. - 108.62.122.104 ; 2604:9a00:2100:b001:6::1

South America:

  1. Brazil, Sao Paulo - 181.215.183.179; 2604:4500:21:2:181:215:183:179
  2. Brazil, Sao Paulo 2 - 35.198.56.56
  3. Brazil, Sao Paulo 3 - 5.188.225.77 ; 2a03:90c0:186::170
  4. Brazil, Sao Paulo 4 - 216.238.99.56 ; 2001:19f0:b800:173d:5400:4ff:fe43:402a
  5. Chile, Santiago - 38.7.199.42; 2803:3b80:2002:24b1::1
  6. Chile, Santiago 2 - 64.176.9.90; 2001:19f0:c800:210a:5400:4ff:fe72:6a77
  7. Peru, Lima - 87.121.99.230; 2a03:90c0:555::67a

China**:

  1. China, Beijing - 101.200.202.91 ; 2408:400a:161:c00:304b:eebc:56a7:db46
  2. China, Guangzhou - 106.55.229.223

** China has completely different internet infrastructure which is connected to the global network over multiple filters. This is the reason the country itself is separated from the Asia-Pacific region, because for the regular infrastructure checks it is giving often false downtime results. The nodes in China are suitable for checks inside the country.

Last modified: 2025-08-06
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