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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
178.156.187.149
AS213230 Hetzner Online GmbH BAD_RESPONSE Returns unexpected response codes 86%
154.53.47.181
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 86%
154.53.39.53
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 86%
104.236.198.189
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 86%
50.226.13.127
AS7922 Comcast Cable Communications, LLC BAD_RESPONSE Returns unexpected response codes 85%
50.226.13.120
AS7922 Comcast Cable Communications, LLC BAD_RESPONSE Returns unexpected response codes 85%
50.226.13.122
AS7922 Comcast Cable Communications, LLC BAD_RESPONSE Returns unexpected response codes 85%
50.226.13.123
AS7922 Comcast Cable Communications, LLC BAD_RESPONSE Returns unexpected response codes 85%
50.226.13.124
AS7922 Comcast Cable Communications, LLC BAD_RESPONSE Returns unexpected response codes 85%
50.226.13.126
AS7922 Comcast Cable Communications, LLC BAD_RESPONSE Returns unexpected response codes 85%
173.234.25.154
AS63018 Dedicated.com BAD_RESPONSE Returns unexpected response codes 83%
173.234.25.155
AS63018 Dedicated.com BAD_RESPONSE Returns unexpected response codes 83%
173.234.25.156
AS63018 Dedicated.com BAD_RESPONSE Returns unexpected response codes 83%
173.234.25.157
AS63018 Dedicated.com BAD_RESPONSE Returns unexpected response codes 83%
173.234.25.158
AS63018 Dedicated.com BAD_RESPONSE Returns unexpected response codes 83%
156.154.71.47
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 80%
156.154.71.48
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 80%
96.72.81.89
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 78%
67.205.174.156
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 77%
94.72.127.155
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 77%
156.154.71.5
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 76%
156.154.71.49
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 76%
45.55.112.11
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 75%
97.64.128.163
AS30036 MEDIACOM-ENTERPRISE-BUSINESS BAD_RESPONSE Returns unexpected response codes 75%
5.180.27.15
AS41111 Fast Geo Hosting S.r.l. BAD_RESPONSE Returns unexpected response codes 74%
54.235.14.52
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 74%
96.7.137.132
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 73%
96.7.136.82
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 73%
96.7.136.5
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 71%
104.131.174.72
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 71%
96.7.136.102
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 70%
96.7.137.102
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 70%
96.7.137.100
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 70%
156.154.71.60
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 69%
96.7.136.10
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 69%
45.55.71.103
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 69%
23.216.53.151
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 69%
198.136.58.194
AS33182 HostDime.com, Inc. BAD_RESPONSE Returns unexpected response codes 69%
138.197.67.33
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 69%
96.7.137.107
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 68%
156.154.71.50
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 68%
104.248.1.9
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 68%
159.223.171.190
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 68%
96.7.137.160
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 66%
96.7.136.13
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 66%
156.154.71.6
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 66%
156.154.71.7
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 66%
156.154.71.57
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 66%
156.154.71.62
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 66%
156.154.71.64
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 66%
156.154.71.52
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 65%
156.154.71.9
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 65%
96.7.137.82
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 65%
23.216.52.71
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 65%
173.223.99.222
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 64%
208.97.140.7
AS26347 New Dream Network, LLC BAD_RESPONSE Returns unexpected response codes 62%
45.55.122.170
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 62%
24.199.116.202
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 62%
174.138.66.246
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 62%
165.227.201.145
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 62%
143.20.170.73
AS26042 FiberState, LLC BAD_RESPONSE Returns unexpected response codes 62%
156.154.71.61
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 61%
23.216.53.180
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 61%
96.7.136.44
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 61%
104.36.110.192
AS53914 Genesis Hosting Solutions, LLC BAD_RESPONSE Returns unexpected response codes 59%
206.189.165.31
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 59%
134.199.210.253
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 59%
156.154.71.51
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 57%
96.7.136.100
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 57%
96.7.137.0
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 56%
167.71.247.172
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 55%
143.198.12.158
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 55%
209.145.56.131
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 55%
173.223.99.192
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 54%
23.216.52.128
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 54%
52.116.181.86
AS36351 IBM Cloud BAD_RESPONSE Returns unexpected response codes 53%
138.68.235.230
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 52%
173.223.98.0
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 52%
173.223.99.70
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 50%
173.223.99.191
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 50%
198.199.93.72
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 49%
144.126.149.170
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 49%
165.1.73.85
AS31898 Oracle Corporation BAD_RESPONSE Returns unexpected response codes 49%
173.223.99.23
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 49%
15.204.155.225
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 47%
173.223.99.92
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 47%
217.77.8.225
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 45%
65.255.197.147
AS29930 TWRS-CBB BAD_RESPONSE Returns unexpected response codes 44%
66.29.136.6
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 43%
66.29.136.14
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 43%
157.250.193.238
AS19318 Interserver, Inc BAD_RESPONSE Returns unexpected response codes 42%
72.62.80.180
AS47583 Hostinger International Limited BAD_RESPONSE Returns unexpected response codes 41%
209.145.63.145
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 40%
173.223.99.72
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 40%
20.163.14.26
AS8075 Microsoft Corporation BAD_RESPONSE Returns unexpected response codes 40%
64.16.44.102
AS7385 ABUL-14-7385 BAD_RESPONSE Returns unexpected response codes 40%
217.77.8.224
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 40%
38.107.236.238
AS49791 Newserverlife LLC BAD_RESPONSE Returns unexpected response codes 39%
66.207.46.201
AS27257 WEBAIR-INTERNET BAD_RESPONSE Returns unexpected response codes 39%
173.223.99.246
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 36%
173.223.99.195
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 35%
156.154.70.41
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 35%
198.58.107.175
AS63949 Akamai Connected Cloud BAD_RESPONSE Returns unexpected response codes 35%
129.71.254.12
AS7925 WVNET BAD_RESPONSE Returns unexpected response codes 34%
38.107.236.239
AS49791 Newserverlife LLC BAD_RESPONSE Returns unexpected response codes 34%
23.59.249.152
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 33%
143.110.225.145
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 32%
66.243.10.180
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 31%
64.139.97.3
AS20474 NCIDATACOM BAD_RESPONSE Returns unexpected response codes 31%
209.234.196.12
AS26421 PONDEROSA-INTERNET BAD_RESPONSE Returns unexpected response codes 31%
208.67.220.120
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 31%
208.67.220.220
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 31%
208.67.222.2
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 31%
208.67.222.222
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 31%
204.156.192.68
AS19009 ONECLEVELAND BAD_RESPONSE Returns unexpected response codes 31%
146.112.41.2
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 31%
146.112.41.4
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 31%
208.67.220.2
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 31%
146.112.41.5
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 31%
157.245.4.174
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 31%
104.248.186.117
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 31%
162.243.166.122
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 29%
66.25.11.69
AS11427 TWC-11427-TEXAS BAD_RESPONSE Returns unexpected response codes 29%
146.190.166.207
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 29%
208.67.220.64
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
208.67.220.123
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
208.67.220.222
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
208.67.221.76
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
208.67.222.64
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
208.67.222.120
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
208.67.222.123
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
208.67.222.220
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
208.67.223.76
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
204.194.232.200
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
204.194.234.200
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
146.112.41.3
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
146.112.70.70
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
146.112.71.71
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 28%
138.128.182.187
AS33182 HostDime.com, Inc. BAD_RESPONSE Returns unexpected response codes 28%
165.227.70.162
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 25%
99.198.107.244
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 25%
99.198.107.246
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 25%
96.95.196.193
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 25%
96.7.137.47
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.137.51
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.137.214
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.137.231
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.137.243
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.137.246
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.137.108
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.136.42
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.136.45
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.136.51
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.136.66
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.136.18
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.136.231
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.136.244
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.136.136
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.7.136.108
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 25%
96.65.91.65
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 25%
96.127.154.165
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 25%
8.42.68.21
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 25%
8.38.89.46
AS13886 CLOUD-SOUTH BAD_RESPONSE Returns unexpected response codes 25%
8.36.63.5
AS399054 KAS-CABLE BAD_RESPONSE Returns unexpected response codes 25%
8.36.160.49
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 25%
8.18.117.10
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 25%
8.18.117.11
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 25%
76.72.141.20
AS21981 GOEASTON BAD_RESPONSE Returns unexpected response codes 25%
75.149.159.193
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 25%
75.103.111.206
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 25%
75.103.71.36
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 25%
75.103.71.218
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 25%
75.103.71.213
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 25%
75.103.70.36
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 25%
75.103.70.193
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 25%
75.103.70.213
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 25%
75.103.120.55
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 25%
75.103.120.54
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 25%
74.87.93.226
AS10796 TWC-10796-MIDWEST BAD_RESPONSE Returns unexpected response codes 25%
74.208.200.76
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 25%
74.208.137.72
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 25%
74.203.137.50
AS62737 PARINC BAD_RESPONSE Returns unexpected response codes 25%
74.203.137.51
AS62737 PARINC BAD_RESPONSE Returns unexpected response codes 25%
72.5.150.11
AS18851 ICORE-ASN-1 BAD_RESPONSE Returns unexpected response codes 25%
72.19.20.10
AS20454 SSASN2 BAD_RESPONSE Returns unexpected response codes 25%
72.19.20.12
AS20454 SSASN2 BAD_RESPONSE Returns unexpected response codes 25%
72.18.210.55
AS22658 EARTHNET BAD_RESPONSE Returns unexpected response codes 25%
72.167.54.90
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 25%
72.167.34.32
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 25%
72.167.35.194
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 25%
72.167.46.30
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 25%
72.167.55.61
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 25%
69.94.144.4
AS16578 DATANOC BAD_RESPONSE Returns unexpected response codes 25%
69.88.130.100
AS10912 INTERNAP-BLK BAD_RESPONSE Returns unexpected response codes 25%
69.39.83.140
AS12129 123NET BAD_RESPONSE Returns unexpected response codes 25%
69.164.192.83
AS63949 Akamai Technologies, Inc. BAD_RESPONSE Returns unexpected response codes 25%
69.164.217.95
AS63949 Akamai Technologies, Inc. BAD_RESPONSE Returns unexpected response codes 25%
68.71.136.11
AS30475 WEHOSTWEBSITES-COM BAD_RESPONSE Returns unexpected response codes 25%
68.178.206.41
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 25%
67.40.2.200
AS209 CENTURYLINK-US-LEGACY-QWEST BAD_RESPONSE Returns unexpected response codes 25%

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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