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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
99.198.107.244
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 90%
99.198.107.246
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 90%
96.95.196.193
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 90%
96.76.235.122
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.51
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.66
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.137.47
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.137.51
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.137.214
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.137.231
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.137.243
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.18
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.99
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.137.108
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.137.204
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.137.246
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.42
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.45
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.244
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.136
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.231
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.7.136.108
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
96.127.154.165
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 90%
8.42.68.21
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 90%
8.38.89.46
AS13886 CLOUD-SOUTH BAD_RESPONSE Returns unexpected response codes 90%
8.36.63.5
AS399054 KAS-CABLE BAD_RESPONSE Returns unexpected response codes 90%
8.36.160.49
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 90%
8.18.117.11
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 90%
8.18.117.10
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 90%
76.72.141.20
AS21981 GOEASTON BAD_RESPONSE Returns unexpected response codes 90%
75.149.159.193
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 90%
75.103.111.206
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
75.103.70.36
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
75.103.70.193
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
75.103.70.213
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
75.103.71.36
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
75.103.71.213
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
75.103.71.218
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
75.103.120.54
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
75.103.120.55
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
74.208.200.76
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 90%
74.203.137.50
AS62737 PARINC BAD_RESPONSE Returns unexpected response codes 90%
74.203.137.51
AS62737 PARINC BAD_RESPONSE Returns unexpected response codes 90%
72.5.150.11
AS18851 ICORE-ASN-1 BAD_RESPONSE Returns unexpected response codes 90%
72.19.20.10
AS20454 SSASN2 BAD_RESPONSE Returns unexpected response codes 90%
72.19.20.12
AS20454 SSASN2 BAD_RESPONSE Returns unexpected response codes 90%
72.18.210.55
AS22658 EARTHNET BAD_RESPONSE Returns unexpected response codes 90%
72.167.54.90
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 90%
72.167.46.30
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 90%
72.167.34.32
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 90%
72.167.55.61
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 90%
70.241.209.187
AS7018 ATT-INTERNET4 BAD_RESPONSE Returns unexpected response codes 90%
69.94.144.4
AS16578 DATANOC BAD_RESPONSE Returns unexpected response codes 90%
69.88.130.100
AS10912 INTERNAP-BLK BAD_RESPONSE Returns unexpected response codes 90%
69.39.83.140
AS12129 123NET BAD_RESPONSE Returns unexpected response codes 90%
69.164.217.95
AS63949 Akamai Technologies, Inc. BAD_RESPONSE Returns unexpected response codes 90%
69.164.192.83
AS63949 Akamai Technologies, Inc. BAD_RESPONSE Returns unexpected response codes 90%
68.178.206.41
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 90%
67.40.2.200
AS209 CENTURYLINK-US-LEGACY-QWEST BAD_RESPONSE Returns unexpected response codes 90%
67.199.63.139
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
67.199.46.101
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
66.25.11.69
AS11427 TWC-11427-TEXAS BAD_RESPONSE Returns unexpected response codes 90%
66.203.36.87
AS12247 META-SOLUTIONS BAD_RESPONSE Returns unexpected response codes 90%
65.49.9.6
AS6939 HURRICANE BAD_RESPONSE Returns unexpected response codes 90%
64.62.246.188
AS6939 HURRICANE BAD_RESPONSE Returns unexpected response codes 90%
64.5.130.6
AS11221 WHRONET BAD_RESPONSE Returns unexpected response codes 90%
64.44.51.51
AS20278 NEXEON BAD_RESPONSE Returns unexpected response codes 90%
64.20.37.186
AS19318 IS-AS-1 BAD_RESPONSE Returns unexpected response codes 90%
64.192.69.159
AS395944 KENNETT-BOARD-OF-PUBLIC-WORKS BAD_RESPONSE Returns unexpected response codes 90%
63.140.119.242
AS7782 ALSK-7782 BAD_RESPONSE Returns unexpected response codes 90%
52.152.253.1
AS8075 MICROSOFT-CORP-MSN-AS-BLOCK BAD_RESPONSE Returns unexpected response codes 90%
51.81.208.46
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 90%
50.58.111.74
AS394828 VALTECH-COMMUNICATIONS BAD_RESPONSE Returns unexpected response codes 90%
50.28.52.102
AS32244 LIQUIDWEB BAD_RESPONSE Returns unexpected response codes 90%
50.239.217.78
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 90%
50.174.4.138
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 90%
47.48.194.91
AS20115 CHARTER-20115 BAD_RESPONSE Returns unexpected response codes 90%
47.180.221.164
AS5650 FRONTIER-FRTR BAD_RESPONSE Returns unexpected response codes 90%
40.135.122.6
AS7029 WINDSTREAM BAD_RESPONSE Returns unexpected response codes 90%
4.79.216.6
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 90%
4.79.132.219
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 90%
4.28.35.165
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 90%
34.94.84.140
AS396982 GOOGLE-CLOUD-PLATFORM BAD_RESPONSE Returns unexpected response codes 90%
3.90.129.208
AS14618 AMAZON-AES BAD_RESPONSE Returns unexpected response codes 90%
23.95.234.28
AS36352 AS-COLOCROSSING BAD_RESPONSE Returns unexpected response codes 90%
23.254.209.148
AS54290 HOSTWINDS BAD_RESPONSE Returns unexpected response codes 90%
23.59.248.32
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.59.248.80
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.59.249.52
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.59.249.109
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.59.249.137
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.59.249.152
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.239.5.85
AS63949 Linode, LLC BAD_RESPONSE Returns unexpected response codes 90%
23.56.161.133
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.216.52.169
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.216.52.170
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.216.52.175
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.216.53.215
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.216.52.137
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
23.111.172.214
AS29802 HVC-AS BAD_RESPONSE Returns unexpected response codes 90%
216.37.55.150
AS17054 AS17054 BAD_RESPONSE Returns unexpected response codes 90%
216.207.131.24
AS209 CENTURYLINK-US-LEGACY-QWEST BAD_RESPONSE Returns unexpected response codes 90%
216.194.28.33
AS16524 METTEL BAD_RESPONSE Returns unexpected response codes 90%
216.194.28.69
AS16524 METTEL BAD_RESPONSE Returns unexpected response codes 90%
216.106.1.254
AS4581 SOCKET BAD_RESPONSE Returns unexpected response codes 90%
209.249.125.1
AS6461 ZAYO-6461 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.200
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.211.254.18
AS55044 LRCSNET BAD_RESPONSE Returns unexpected response codes 90%
209.211.254.19
AS55044 LRCSNET BAD_RESPONSE Returns unexpected response codes 90%
209.200.84.27
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.205
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.207
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.208
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.209
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.210
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.217
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.218
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.219
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.201
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
209.200.100.202
AS203 CENTURYLINK-LEGACY-LVLT-203 BAD_RESPONSE Returns unexpected response codes 90%
208.67.21.31
AS3257 GTT Communications Inc. BAD_RESPONSE Returns unexpected response codes 90%
207.58.183.11
AS30633 LEASEWEB-USA-WDC BAD_RESPONSE Returns unexpected response codes 90%
208.115.215.139
AS46475 LIMESTONENETWORKS BAD_RESPONSE Returns unexpected response codes 90%
207.244.74.78
AS30633 LEASEWEB-USA-WDC BAD_RESPONSE Returns unexpected response codes 90%
208.109.38.19
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 90%
206.202.85.18
AS7018 ATT-INTERNET4 BAD_RESPONSE Returns unexpected response codes 90%
204.70.127.128
AS3561 CENTURYLINK-LEGACY-SAVVIS BAD_RESPONSE Returns unexpected response codes 90%
204.193.131.125
AS20141 QTS-SUW1-ATL1 BAD_RESPONSE Returns unexpected response codes 90%
204.186.24.250
AS3737 AS-PTD BAD_RESPONSE Returns unexpected response codes 90%
204.17.43.66
AS22772 LOGIN BAD_RESPONSE Returns unexpected response codes 90%
200.7.99.229
AS33182 DIMENOC BAD_RESPONSE Returns unexpected response codes 90%
20.88.49.176
AS8075 MICROSOFT-CORP-MSN-AS-BLOCK BAD_RESPONSE Returns unexpected response codes 90%
20.122.38.118
AS8075 MICROSOFT-CORP-MSN-AS-BLOCK BAD_RESPONSE Returns unexpected response codes 90%
20.10.134.172
AS8075 MICROSOFT-CORP-MSN-AS-BLOCK BAD_RESPONSE Returns unexpected response codes 90%
192.243.213.229
AS23235 BOSMED-88-ENEWTON BAD_RESPONSE Returns unexpected response codes 90%
192.206.244.25
AS46171 CFBISD-AS1 BAD_RESPONSE Returns unexpected response codes 90%
192.206.246.8
AS46171 CFBISD-AS1 BAD_RESPONSE Returns unexpected response codes 90%
192.198.81.42
AS31863 DACEN-2 BAD_RESPONSE Returns unexpected response codes 90%
192.169.177.17
AS398101 GO-DADDY-COM-LLC BAD_RESPONSE Returns unexpected response codes 90%
192.129.162.116
AS54290 HOSTWINDS BAD_RESPONSE Returns unexpected response codes 90%
184.154.211.203
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 90%
184.154.211.205
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 90%
184.154.134.69
AS32475 SINGLEHOP-LLC BAD_RESPONSE Returns unexpected response codes 90%
173.248.146.202
AS30475 WEHOSTWEBSITES-COM BAD_RESPONSE Returns unexpected response codes 90%
173.248.146.206
AS30475 WEHOSTWEBSITES-COM BAD_RESPONSE Returns unexpected response codes 90%
173.248.130.123
AS30475 WEHOSTWEBSITES-COM BAD_RESPONSE Returns unexpected response codes 90%
173.248.152.232
AS30475 WEHOSTWEBSITES-COM BAD_RESPONSE Returns unexpected response codes 90%
173.223.99.56
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
173.223.98.67
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
173.223.98.225
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
173.223.99.161
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
173.223.98.161
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
173.223.100.37
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 90%
170.56.58.53
AS15854 EntServ Deutschland GmbH BAD_RESPONSE Returns unexpected response codes 90%
170.122.250.17
AS54314 LHA-2-ASN BAD_RESPONSE Returns unexpected response codes 90%
167.206.179.143
AS6128 CABLE-NET-1 BAD_RESPONSE Returns unexpected response codes 90%
166.84.7.23
AS2033 PANIX BAD_RESPONSE Returns unexpected response codes 90%
165.158.1.2
AS3356 LEVEL3 BAD_RESPONSE Returns unexpected response codes 90%
162.215.216.164
AS46606 UNIFIEDLAYER-AS-1 BAD_RESPONSE Returns unexpected response codes 90%
156.154.70.1
AS397213 ULTRADNS BAD_RESPONSE Returns unexpected response codes 90%
156.154.70.10
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 90%
156.154.71.46
AS397215 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 90%
156.154.70.5
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 90%
156.154.70.7
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 90%
156.154.70.8
AS397213 ULTRADNS BAD_RESPONSE Returns unexpected response codes 90%
156.154.70.22
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 90%
156.154.70.60
AS397213 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 90%
156.154.71.1
AS397215 SECURITYSERVICES BAD_RESPONSE Returns unexpected response codes 90%
156.154.71.25
AS397215 ULTRADNS BAD_RESPONSE Returns unexpected response codes 90%
154.12.250.50
AS40021 CONTABO BAD_RESPONSE Returns unexpected response codes 90%
134.48.13.211
AS1736 MU-AS BAD_RESPONSE Returns unexpected response codes 90%
129.71.254.12
AS7925 WVNET BAD_RESPONSE Returns unexpected response codes 90%
128.153.253.65
AS92 CLARKSON-AS BAD_RESPONSE Returns unexpected response codes 90%
12.206.224.20
AS2386 INS-AS BAD_RESPONSE Returns unexpected response codes 90%
104.151.255.14
AS399268 CVT BAD_RESPONSE Returns unexpected response codes 90%
103.150.186.102
AS133643 EWEBGURU BAD_RESPONSE Returns unexpected response codes 90%
66.45.254.11
AS19318 IS-AS-1 BAD_RESPONSE Returns unexpected response codes 89%
45.32.195.34
AS20473 AS-CHOOPA BAD_RESPONSE Returns unexpected response codes 89%
166.70.169.98
AS6315 XMISSION BAD_RESPONSE Returns unexpected response codes 89%
156.154.70.11
AS397213 ULTRADNS BAD_RESPONSE Returns unexpected response codes 89%
156.154.71.41
AS397215 ULTRADNS BAD_RESPONSE Returns unexpected response codes 89%
173.248.136.254
AS30475 WEHOSTWEBSITES-COM BAD_RESPONSE Returns unexpected response codes 86%
162.17.81.57
AS7922 COMCAST-7922 BAD_RESPONSE Returns unexpected response codes 86%
173.223.99.220
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 86%
72.18.137.172
AS30475 WEHOSTWEBSITES-COM BAD_RESPONSE Returns unexpected response codes 85%
40.134.174.233
AS7029 WINDSTREAM BAD_RESPONSE Returns unexpected response codes 85%
208.68.186.2
AS10796 TWC-10796-MIDWEST BAD_RESPONSE Returns unexpected response codes 85%
23.253.230.65
AS33070 RMH-14 BAD_RESPONSE Returns unexpected response codes 83%
173.223.99.162
AS21342 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 79%
94.72.127.155
AS40021 Contabo Inc. BAD_RESPONSE Returns unexpected response codes 77%
89.117.38.247
AS46475 Limestone Networks, Inc. BAD_RESPONSE Returns unexpected response codes 77%
69.164.211.79
AS63949 Akamai Connected Cloud BAD_RESPONSE Returns unexpected response codes 77%
66.29.136.6
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 77%
66.29.136.14
AS22612 Namecheap, Inc. BAD_RESPONSE Returns unexpected response codes 77%
66.23.236.106
AS19318 Interserver, Inc BAD_RESPONSE Returns unexpected response codes 77%
64.238.200.174
AS7381 BroadbandONE, LLC BAD_RESPONSE Returns unexpected response codes 77%
54.208.108.228
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 77%
54.208.120.85
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 77%
52.23.27.219
AS14618 Amazon.com, Inc. BAD_RESPONSE Returns unexpected response codes 77%
52.116.181.86
AS36351 IBM Cloud BAD_RESPONSE Returns unexpected response codes 77%

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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