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DNS Server Issues in United States

200 DNS servers in United States with detected issues. These servers respond to probes but have problems that may affect usability.

Last updated: · All countries

Servers with issues

200 servers
IP ASN Organization Issue Description Reliability
173.163.101.137
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 90%
129.80.43.84
AS31898 Oracle Corporation BAD_RESPONSE Returns unexpected response codes 89%
54.164.176.2
AS14618 AMAZON-AES BAD_RESPONSE Returns unexpected response codes 89%
192.64.115.40
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 88%
34.3.131.144
AS214611 Google Cloud EMEA Ltd BAD_RESPONSE Returns unexpected response codes 88%
34.3.135.194
AS214611 Google Cloud EMEA Ltd BAD_RESPONSE Returns unexpected response codes 88%
132.226.56.240
AS31898 Oracle Corporation BAD_RESPONSE Returns unexpected response codes 82%
156.154.70.19
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 81%
185.228.169.223
AS205157 Daniel Cid BAD_RESPONSE Returns unexpected response codes 80%
185.228.168.223
AS205157 Daniel Cid BAD_RESPONSE Returns unexpected response codes 80%
209.126.106.250
AS30083 velia.net BAD_RESPONSE Returns unexpected response codes 80%
156.154.70.18
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 79%
156.154.70.20
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 75%
172.190.244.61
AS8075 Microsoft Corporation BAD_RESPONSE Returns unexpected response codes 75%
98.82.67.177
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 74%
173.223.99.22
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 72%
173.223.98.22
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 72%
167.71.170.210
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 72%
8.19.63.58
AS23089 HOTWIRE-COMMUNICATIONS BAD_RESPONSE Returns unexpected response codes 71%
162.220.160.180
AS26666 Interserver, Inc BAD_RESPONSE Returns unexpected response codes 69%
208.113.164.10
AS26347 New Dream Network, LLC BAD_RESPONSE Returns unexpected response codes 68%
170.9.250.95
AS31898 Oracle Corporation BAD_RESPONSE Returns unexpected response codes 65%
156.154.70.26
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 62%
156.154.70.25
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 56%
156.154.70.27
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 55%
104.131.174.72
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 47%
107.20.219.0
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 47%
15.204.155.225
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 47%
173.223.99.134
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 46%
50.29.128.137
AS3737 AS-PTD BAD_RESPONSE Returns unexpected response codes 46%
173.223.99.70
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 44%
23.228.179.101
AS16591 Google Fiber Inc. BAD_RESPONSE Returns unexpected response codes 42%
216.246.113.85
AS23352 DEFT.COM BAD_RESPONSE Returns unexpected response codes 42%
173.223.99.74
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 41%
156.154.70.21
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 40%
23.216.53.180
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 38%
54.235.14.52
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 37%
50.79.154.34
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 34%
192.241.205.38
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 33%
156.154.70.32
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 32%
156.154.70.49
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 32%
206.189.168.84
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 28%
162.243.166.122
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 28%
74.208.237.87
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 28%
96.19.228.119
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 27%
24.117.83.32
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 27%
184.155.90.27
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 27%
165.1.73.85
AS31898 Oracle Corporation BAD_RESPONSE Returns unexpected response codes 26%
69.84.73.232
AS11138 BEK Communications Cooperative BAD_RESPONSE Returns unexpected response codes 26%
184.155.205.60
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 26%
173.47.7.211
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 26%
24.117.185.37
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 26%
135.26.123.48
AS6300 Fidium BAD_RESPONSE Returns unexpected response codes 26%
209.159.206.13
AS20412 Clarity Telecom LLC BAD_RESPONSE Returns unexpected response codes 26%
134.199.210.253
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 26%
162.254.38.208
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 25%
136.37.26.229
AS16591 Google Fiber Inc. BAD_RESPONSE Returns unexpected response codes 25%
156.154.70.5
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 25%
24.119.88.24
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 25%
96.65.91.65
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 25%
216.16.106.254
AS20412 Clarity Telecom LLC BAD_RESPONSE Returns unexpected response codes 25%
142.154.174.92
AS13825 Troy Cablevision, Inc. BAD_RESPONSE Returns unexpected response codes 25%
173.207.94.37
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 25%
130.44.160.8
AS6079 RCN BAD_RESPONSE Returns unexpected response codes 25%
152.37.196.124
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 25%
192.145.242.26
AS14828 Hiawatha Broadband Communications, Inc BAD_RESPONSE Returns unexpected response codes 25%
178.128.1.21
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 25%
107.189.53.141
AS393856 City of Westfield (Gas & Electric Light Department) BAD_RESPONSE Returns unexpected response codes 25%
129.80.165.80
AS31898 Oracle Corporation BAD_RESPONSE Returns unexpected response codes 25%
69.84.73.213
AS11138 BEK Communications Cooperative BAD_RESPONSE Returns unexpected response codes 25%
24.116.182.210
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 25%
24.117.166.186
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 25%
136.52.43.239
AS16591 Google Fiber Inc. BAD_RESPONSE Returns unexpected response codes 25%
38.107.236.238
AS49791 Newserverlife LLC BAD_RESPONSE Returns unexpected response codes 24%
159.118.201.70
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 24%
216.16.27.195
AS20412 Clarity Telecom LLC BAD_RESPONSE Returns unexpected response codes 24%
20.25.192.243
AS8075 Microsoft Corporation BAD_RESPONSE Returns unexpected response codes 24%
159.203.104.136
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 22%
66.29.136.6
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 22%
66.29.136.14
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 22%
156.154.70.40
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 20%
213.210.13.6
AS47583 Hostinger International Limited BAD_RESPONSE Returns unexpected response codes 20%
199.192.22.128
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 20%
199.192.22.137
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 20%
134.209.209.22
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 20%
134.199.180.63
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 20%
104.248.110.33
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 20%
138.68.46.220
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 20%
217.77.8.225
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 19%
217.77.8.224
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 18%
156.154.70.33
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 18%
167.99.144.203
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 17%
64.5.130.2
AS11221 WHRONET BAD_RESPONSE Returns unexpected response codes 17%
157.230.179.141
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 16%
165.227.70.162
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 16%
143.198.110.216
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 16%
156.154.70.41
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 15%
68.64.126.27
AS1640 Thacker-Grigsby Communications BAD_RESPONSE Returns unexpected response codes 14%
107.150.1.246
AS36352 HostPapa BAD_RESPONSE Returns unexpected response codes 14%
208.93.60.20
AS46258 ESC3 BAD_RESPONSE Returns unexpected response codes 14%
156.154.70.42
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 13%
156.154.70.34
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 13%
104.36.110.192
AS53914 Genesis Hosting Solutions, LLC BAD_RESPONSE Returns unexpected response codes 13%
54.208.108.228
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 12%
54.208.120.85
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 12%
154.53.47.181
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 12%
104.236.198.189
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 12%
104.168.133.82
AS54290 Hostwinds LLC. BAD_RESPONSE Returns unexpected response codes 12%
206.189.165.31
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 12%
67.205.174.156
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 10%
40.160.53.67
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 10%
40.160.53.90
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 10%
193.42.36.76
AS59711 HZ Hosting Ltd BAD_RESPONSE Returns unexpected response codes 10%
15.204.156.86
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 10%
15.204.155.251
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 10%
15.204.155.252
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 10%
15.204.156.0
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 10%
15.204.155.255
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 10%
15.204.153.30
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 10%
69.164.211.79
AS63949 Akamai Connected Cloud BAD_RESPONSE Returns unexpected response codes 10%
156.154.70.50
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 10%
198.136.58.194
AS33182 HostDime.com, Inc. BAD_RESPONSE Returns unexpected response codes 9%
173.223.101.214
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 9%
173.223.100.214
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 9%
138.197.67.33
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 9%
45.55.122.170
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 8%
24.199.116.202
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 8%
174.138.66.246
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 8%
165.227.201.145
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 8%
143.20.170.73
AS26042 FiberState, LLC BAD_RESPONSE Returns unexpected response codes 8%
156.154.70.44
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 8%
167.71.247.172
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 7%
143.198.12.158
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 7%
156.154.71.25
AS397215 ULTRADNS BAD_RESPONSE Returns unexpected response codes 7%
138.68.235.230
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 7%
20.163.14.26
AS8075 Microsoft Corporation BAD_RESPONSE Returns unexpected response codes 7%
156.154.71.24
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 7%
198.199.93.72
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 7%
104.248.186.117
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 6%
209.145.63.145
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 5%
66.207.46.201
AS27257 WEBAIR-INTERNET BAD_RESPONSE Returns unexpected response codes 5%
156.154.71.26
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 5%
156.154.71.21
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 5%
156.154.71.22
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 5%
156.154.71.23
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 5%
172.245.139.105
AS36352 HostPapa BAD_RESPONSE Returns unexpected response codes 5%
107.175.218.237
AS36352 HostPapa BAD_RESPONSE Returns unexpected response codes 5%
156.154.71.20
AS397215 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 5%
162.223.90.104
AS19084 COLOUP BAD_RESPONSE Returns unexpected response codes 5%
198.58.107.175
AS63949 Akamai Connected Cloud BAD_RESPONSE Returns unexpected response codes 5%
156.154.71.27
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 5%
23.59.249.152
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 4%
143.110.225.145
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
66.243.10.180
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 4%
64.139.97.3
AS20474 NCIDATACOM BAD_RESPONSE Returns unexpected response codes 4%
209.234.196.12
AS26421 PONDEROSA-INTERNET BAD_RESPONSE Returns unexpected response codes 4%
208.67.220.120
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 4%
208.67.220.220
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 4%
208.67.222.2
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 4%
208.67.222.222
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 4%
204.156.192.68
AS19009 ONECLEVELAND BAD_RESPONSE Returns unexpected response codes 4%
146.112.41.2
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 4%
146.112.41.4
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 4%
208.67.220.2
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 4%
146.112.41.5
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 4%
157.245.4.174
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
146.190.166.207
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
208.67.220.64
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
208.67.220.123
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
208.67.220.222
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
208.67.221.76
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
208.67.222.64
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
208.67.222.120
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
208.67.222.123
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
208.67.222.220
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
208.67.223.76
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
204.194.232.200
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
204.194.234.200
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
146.112.41.3
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
146.112.70.70
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
146.112.71.71
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 4%
138.128.182.187
AS33182 HostDime.com, Inc. BAD_RESPONSE Returns unexpected response codes 4%
99.198.107.244
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 3%
99.198.107.246
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 3%
96.95.196.193
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 3%
96.7.137.47
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.137.51
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.137.108
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.137.214
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.137.231
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.137.243
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.137.246
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.136.51
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.136.66
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.136.231
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.136.244
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.136.45
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.136.18
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.136.136
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%
96.7.136.108
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 3%

What do these issues mean?

  • REFUSED — Server is online but refuses queries from outside its network. Likely an ISP resolver that only serves its own subscribers.
  • NX_HIJACK — Server works but redirects non-existent domain lookups to its own IP, typically showing ads instead of an error.
  • SERVFAIL — Server responds but returns internal errors. May be misconfigured or overloaded.
  • NETWORK_ERROR — Connection to the server failed at the network level.
  • NO_ANSWER — Server responds to the query but provides no answer data.
  • CENSORED — Server returns different results for certain domains compared to neutral resolvers.

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