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DNS Server Issues in Cuba

39 DNS servers in Cuba with detected issues. These servers respond to probes but have problems that may affect usability.

Last updated: · All countries

Servers with issues

39 servers
IP ASN Organization Issue Description Reliability
200.0.16.6
AS11960 EMPRESA DE TELECOMUNICACIONES DE CUBA S.A. IXP CUBA BAD_RESPONSE Returns unexpected response codes 22%
200.0.16.4
AS11960 EMPRESA DE TELECOMUNICACIONES DE CUBA S.A. IXP CUBA BAD_RESPONSE Returns unexpected response codes 22%
169.158.178.114
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.178.70
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.181.43
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.181.58
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.181.60
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.224.130
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.128.88
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.128.136
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.141.2
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.178.18
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.178.50
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.142.196
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.143.227
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.144.156
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.144.178
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.144.202
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.176.51
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
169.158.176.189
AS10569 Red CENIAInternet BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.73
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.6
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.64
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.30
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.31
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.39
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.45
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.75
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.209
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.253
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.102.42
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.100
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.154
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.183
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.184
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.118.199
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.1.145
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.1.146
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%
152.206.1.147
AS27725 Empresa de Telecomunicaciones de Cuba, S.A. BAD_RESPONSE Returns unexpected response codes 22%

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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