PublicDNS.info Live-tested public DNS
Retested every 72 hours.

DNS Server Issues in Puerto Rico

79 DNS servers in Puerto Rico with detected issues. These servers respond to probes but have problems that may affect usability.

Last updated: · All countries

Servers with issues

79 servers
IP ASN Organization Issue Description Reliability
74.120.31.135
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.136
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.130
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.131
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.132
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.133
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.134
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.137
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.138
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.139
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.140
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.141
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.142
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
74.120.31.143
AS39963 IP SOLUTIONS, INC. BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.147
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.160
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.163
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.2
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.50
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.106
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.108
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.109
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.110
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.115
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.32.3
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.103
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.139
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.119
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.125
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.132
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.134
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
69.89.37.136
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
67.230.84.9
AS12206 DNP Networks BAD_RESPONSE Returns unexpected response codes 22%
66.231.171.2
AS11992 Liberty Mobile Puerto Rico Inc. BAD_RESPONSE Returns unexpected response codes 22%
66.231.171.4
AS11992 Liberty Mobile Puerto Rico Inc. BAD_RESPONSE Returns unexpected response codes 22%
65.23.208.10
AS400266 Wind Net BAD_RESPONSE Returns unexpected response codes 22%
24.138.255.71
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.138.255.72
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.139.179.67
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.139.179.68
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.138.252.19
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.138.252.29
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.139.179.66
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.139.136.46
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.139.136.60
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.138.255.73
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
24.139.135.226
AS14638 Liberty Communications of Puerto Rico LLC BAD_RESPONSE Returns unexpected response codes 22%
23.39.210.4
AS20940 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 22%
23.39.210.6
AS20940 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 22%
23.39.210.21
AS20940 Akamai International B.V. BAD_RESPONSE Returns unexpected response codes 22%
208.249.78.2
AS11653 Puerto Rico Webmasters BAD_RESPONSE Returns unexpected response codes 22%
207.15.198.3
AS14979 Aeronet Wireless BAD_RESPONSE Returns unexpected response codes 22%
199.116.62.19
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
196.28.53.123
AS10396 DATACOM CARIBE, INC. BAD_RESPONSE Returns unexpected response codes 22%
196.28.53.126
AS10396 DATACOM CARIBE, INC. BAD_RESPONSE Returns unexpected response codes 22%
196.28.61.33
AS10396 DATACOM CARIBE, INC. BAD_RESPONSE Returns unexpected response codes 22%
196.28.61.34
AS10396 DATACOM CARIBE, INC. BAD_RESPONSE Returns unexpected response codes 22%
192.254.96.3
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
192.254.96.23
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
192.254.96.86
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
192.254.96.2
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
192.254.96.11
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
192.254.96.12
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
192.254.96.20
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
192.254.96.21
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
192.135.110.98
AS14979 Aeronet Wireless BAD_RESPONSE Returns unexpected response codes 22%
173.243.87.78
AS14979 Aeronet Wireless BAD_RESPONSE Returns unexpected response codes 22%
173.243.80.179
AS14979 Aeronet Wireless BAD_RESPONSE Returns unexpected response codes 22%
173.243.92.131
AS14979 Aeronet Wireless BAD_RESPONSE Returns unexpected response codes 22%
173.215.177.218
AS10396 DATACOM CARIBE, INC. BAD_RESPONSE Returns unexpected response codes 22%
167.94.225.18
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
167.94.225.19
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
162.248.44.45
AS46941 Xairnet BAD_RESPONSE Returns unexpected response codes 22%
154.64.208.86
AS21559 OSNET BAD_RESPONSE Returns unexpected response codes 22%
136.145.180.251
AS5786 University of Puerto Rico BAD_RESPONSE Returns unexpected response codes 22%
136.145.180.248
AS5786 University of Puerto Rico BAD_RESPONSE Returns unexpected response codes 22%
136.145.1.4
AS5786 University of Puerto Rico BAD_RESPONSE Returns unexpected response codes 22%
136.145.180.22
AS5786 University of Puerto Rico BAD_RESPONSE Returns unexpected response codes 22%
196.42.42.180
AS10396 DATACOM CARIBE, INC. NX_HIJACK Hijacks NXDOMAIN responses — redirects failed lookups 90%

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.

Related