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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
129.213.56.242
AS31898 Oracle Corporation BAD_RESPONSE Returns unexpected response codes 90%
104.207.65.156
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 89%
97.64.128.163
AS30036 MEDIACOM-ENTERPRISE-BUSINESS BAD_RESPONSE Returns unexpected response codes 84%
34.3.135.194
AS214611 Google Cloud EMEA Ltd BAD_RESPONSE Returns unexpected response codes 84%
69.88.0.17
AS30362 HPT-ASN BAD_RESPONSE Returns unexpected response codes 80%
72.61.12.57
AS47583 Hostinger International Limited BAD_RESPONSE Returns unexpected response codes 78%
23.216.53.229
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 73%
38.110.1.45
AS63023 GTHost BAD_RESPONSE Returns unexpected response codes 73%
23.216.53.34
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 72%
86.48.29.10
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 72%
23.216.53.176
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 67%
104.226.60.33
AS5650 Frontier Communications of America, Inc. BAD_RESPONSE Returns unexpected response codes 65%
23.216.52.128
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 63%
23.216.53.180
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 60%
198.71.62.239
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 53%
98.189.213.222
AS22773 ASN-CXA-ALL-CCI-22773-RDC BAD_RESPONSE Returns unexpected response codes 52%
98.82.67.177
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 51%
160.2.117.132
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 47%
156.154.70.32
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 46%
104.131.174.72
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 45%
156.154.70.5
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 43%
66.94.120.127
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 41%
50.247.134.226
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 40%
156.154.70.33
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 40%
185.228.169.223
AS205157 Daniel Cid BAD_RESPONSE Returns unexpected response codes 38%
185.228.168.223
AS205157 Daniel Cid BAD_RESPONSE Returns unexpected response codes 38%
209.126.106.250
AS30083 velia.net BAD_RESPONSE Returns unexpected response codes 38%
15.204.155.225
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 37%
156.154.70.34
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 37%
156.154.70.50
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 36%
173.223.99.22
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 35%
173.223.98.22
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 35%
217.77.8.225
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 33%
156.154.70.60
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 33%
156.154.70.51
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 33%
156.154.70.6
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 33%
156.154.70.59
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 33%
217.77.8.224
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 32%
156.154.70.9
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 32%
156.154.70.64
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 32%
156.154.70.52
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 32%
156.154.70.53
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 32%
156.154.70.54
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 32%
156.154.70.58
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 32%
156.154.70.61
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 32%
170.9.250.95
AS31898 Oracle Corporation BAD_RESPONSE Returns unexpected response codes 31%
159.198.74.199
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 31%
66.216.47.29
AS19151 BBO-1 BAD_RESPONSE Returns unexpected response codes 30%
156.154.70.47
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 29%
20.25.192.243
AS8075 Microsoft Corporation BAD_RESPONSE Returns unexpected response codes 28%
162.243.166.122
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 28%
107.21.225.59
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 27%
156.154.70.7
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 24%
156.154.70.8
AS397213 ULTRADNS BAD_RESPONSE Returns unexpected response codes 24%
156.154.70.57
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 24%
156.154.70.46
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 24%
156.154.70.48
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 24%
156.154.70.55
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 24%
156.154.70.56
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 24%
156.154.70.62
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 24%
52.116.181.86
AS36351 IBM Cloud BAD_RESPONSE Returns unexpected response codes 24%
38.107.236.238
AS49791 Newserverlife LLC BAD_RESPONSE Returns unexpected response codes 24%
107.20.219.0
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 23%
50.79.154.34
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 22%
23.228.179.101
AS16591 Google Fiber Inc. BAD_RESPONSE Returns unexpected response codes 20%
216.246.113.85
AS23352 DEFT.COM BAD_RESPONSE Returns unexpected response codes 20%
165.227.70.162
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 20%
104.248.186.117
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 19%
192.241.205.38
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 16%
66.25.11.69
AS11427 TWC-11427-TEXAS BAD_RESPONSE Returns unexpected response codes 16%
209.145.56.131
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 14%
38.107.236.237
AS49791 Newserverlife LLC BAD_RESPONSE Returns unexpected response codes 13%
206.189.168.84
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 13%
74.208.237.87
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 13%
184.155.90.27
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 13%
135.26.123.48
AS6300 Fidium BAD_RESPONSE Returns unexpected response codes 12%
216.16.106.254
AS20412 Clarity Telecom LLC BAD_RESPONSE Returns unexpected response codes 12%
142.154.174.92
AS13825 Troy Cablevision, Inc. BAD_RESPONSE Returns unexpected response codes 12%
130.44.160.8
AS6079 RCN BAD_RESPONSE Returns unexpected response codes 12%
178.128.1.21
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 12%
24.116.182.210
AS11492 CABLE ONE, INC. BAD_RESPONSE Returns unexpected response codes 12%
159.203.104.136
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 11%
66.29.136.6
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 11%
66.29.136.14
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 11%
213.210.13.6
AS47583 Hostinger International Limited BAD_RESPONSE Returns unexpected response codes 10%
199.192.22.128
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 10%
199.192.22.137
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 10%
134.209.209.22
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 10%
134.199.180.63
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 10%
104.248.110.33
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 10%
138.68.46.220
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 10%
167.99.144.203
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 8%
64.5.130.2
AS11221 WHRONET BAD_RESPONSE Returns unexpected response codes 8%
157.230.179.141
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 8%
143.198.110.216
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 8%
68.64.126.27
AS1640 Thacker-Grigsby Communications BAD_RESPONSE Returns unexpected response codes 7%
107.150.1.246
AS36352 HostPapa BAD_RESPONSE Returns unexpected response codes 7%
208.93.60.20
AS46258 ESC3 BAD_RESPONSE Returns unexpected response codes 6%
104.36.110.192
AS53914 Genesis Hosting Solutions, LLC BAD_RESPONSE Returns unexpected response codes 6%
154.53.47.181
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 6%
104.236.198.189
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 6%
104.168.133.82
AS54290 Hostwinds LLC. BAD_RESPONSE Returns unexpected response codes 6%
206.189.165.31
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 6%
67.205.174.156
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 5%
40.160.53.67
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 5%
40.160.53.90
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 5%
193.42.36.76
AS59711 HZ Hosting Ltd BAD_RESPONSE Returns unexpected response codes 5%
15.204.156.86
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 5%
15.204.156.20
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 5%
15.204.156.18
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 5%
15.204.153.30
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 5%
69.164.211.79
AS63949 Akamai Connected Cloud BAD_RESPONSE Returns unexpected response codes 5%
198.136.58.194
AS33182 HostDime.com, Inc. BAD_RESPONSE Returns unexpected response codes 4%
173.223.101.214
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 4%
173.223.100.214
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 4%
138.197.67.33
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
45.55.122.170
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
24.199.116.202
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
174.138.66.246
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
165.227.201.145
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
143.20.170.73
AS26042 FiberState, LLC BAD_RESPONSE Returns unexpected response codes 4%
167.71.247.172
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
143.198.12.158
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 4%
38.107.236.239
AS49791 Newserverlife LLC BAD_RESPONSE Returns unexpected response codes 4%
156.154.71.25
AS397215 ULTRADNS BAD_RESPONSE Returns unexpected response codes 4%
138.68.235.230
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 3%
20.163.14.26
AS8075 Microsoft Corporation BAD_RESPONSE Returns unexpected response codes 3%
156.154.71.24
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 3%
198.199.93.72
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 3%
209.145.63.145
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 3%
66.207.46.201
AS27257 WEBAIR-INTERNET BAD_RESPONSE Returns unexpected response codes 3%
156.154.71.21
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 2%
156.154.71.22
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 2%
156.154.71.23
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 2%
156.154.71.26
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 2%
207.174.28.210
AS400509 IPFB LLC BAD_RESPONSE Returns unexpected response codes 2%
172.245.139.105
AS36352 HostPapa BAD_RESPONSE Returns unexpected response codes 2%
107.175.218.237
AS36352 HostPapa BAD_RESPONSE Returns unexpected response codes 2%
156.154.71.20
AS397215 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 2%
198.58.107.175
AS63949 Akamai Connected Cloud BAD_RESPONSE Returns unexpected response codes 2%
156.154.71.27
AS12008 Vercara, LLC BAD_RESPONSE Returns unexpected response codes 2%
23.59.249.152
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
143.110.225.145
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 2%
74.112.48.13
AS22088 CITY-OF-EDMONDS-WA BAD_RESPONSE Returns unexpected response codes 2%
66.243.10.180
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 2%
64.139.97.3
AS20474 NCIDATACOM BAD_RESPONSE Returns unexpected response codes 2%
209.234.196.12
AS26421 PONDEROSA-INTERNET BAD_RESPONSE Returns unexpected response codes 2%
208.67.220.120
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 2%
208.67.220.220
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 2%
208.67.222.2
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 2%
208.67.222.222
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 2%
204.156.192.68
AS19009 ONECLEVELAND BAD_RESPONSE Returns unexpected response codes 2%
146.112.41.2
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 2%
146.112.41.4
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 2%
208.67.220.2
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 2%
146.112.41.5
AS36692 OPENDNS BAD_RESPONSE Returns unexpected response codes 2%
157.245.4.174
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 2%
146.190.166.207
AS14061 DigitalOcean, LLC BAD_RESPONSE Returns unexpected response codes 2%
34.3.134.131
AS214611 Google Cloud EMEA Ltd BAD_RESPONSE Returns unexpected response codes 2%
208.67.220.64
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
208.67.220.123
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
208.67.220.222
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
208.67.221.76
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
208.67.222.64
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
208.67.222.120
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
208.67.222.123
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
208.67.222.220
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
208.67.223.76
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
204.194.232.200
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
204.194.234.200
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
146.112.41.3
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
146.112.70.70
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
146.112.71.71
AS36692 Cisco OpenDNS, LLC BAD_RESPONSE Returns unexpected response codes 2%
138.128.182.187
AS33182 HostDime.com, Inc. BAD_RESPONSE Returns unexpected response codes 2%
99.198.107.244
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 2%
99.198.107.246
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 2%
97.74.91.198
AS26496 AS-26496-GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 2%
96.95.196.193
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 2%
96.7.137.246
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.137.47
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.137.51
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.137.108
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.137.214
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.137.231
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.137.243
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.136.18
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.136.51
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.136.66
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.136.45
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.136.231
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.136.244
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.136.136
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.7.136.108
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 2%
96.127.154.165
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 2%
96.126.120.12
AS63949 Linode, LLC BAD_RESPONSE Returns unexpected response codes 2%
8.42.68.21
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 2%
8.38.89.46
AS13886 CLOUD-SOUTH BAD_RESPONSE Returns unexpected response codes 2%
8.36.63.5
AS399054 KAS-CABLE BAD_RESPONSE Returns unexpected response codes 2%
8.36.160.49
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 2%
8.18.117.10
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 2%

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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