DNS Server Issues in Portugal
39 DNS servers in Portugal 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 |
|---|---|---|---|---|---|
62.28.192.254
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 19% |
62.28.50.223
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 19% |
213.205.70.122
|
AS2860 | Nos Comunicacoes, S.A. | BAD_RESPONSE | Returns unexpected response codes | 19% |
94.126.172.146
|
AS33876 | Dominios, S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
94.126.172.147
|
AS33876 | Dominios, S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
94.126.174.140
|
AS33876 | Dominios, S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
94.126.174.141
|
AS33876 | Dominios, S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
94.126.175.203
|
AS33876 | Dominios, S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
88.157.195.24
|
AS1897 | Nos Comunicacoes, S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
87.103.113.184
|
AS12353 | Vodafone Portugal - Communicacoes Pessoais S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
87.103.113.185
|
AS12353 | Vodafone Portugal - Communicacoes Pessoais S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.48.166.1
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.48.131.10
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.48.131.11
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.48.241.226
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.48.243.61
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.48.243.62
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.48.184.89
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.48.195.147
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.48.221.228
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
62.28.186.176
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
5.253.180.40
|
AS5533 | Claranet Portugal S.A | BAD_RESPONSE | Returns unexpected response codes | 16% |
2.16.65.13
|
AS20940 | Akamai International B.V. | BAD_RESPONSE | Returns unexpected response codes | 16% |
158.162.0.1
|
AS1930 | Fundacao para a Ciencia e a Tecnologia, I.P. | BAD_RESPONSE | Returns unexpected response codes | 16% |
148.69.120.54
|
AS12353 | Vodafone Portugal - Communicacoes Pessoais S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
144.64.182.177
|
AS3243 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
144.64.249.169
|
AS3243 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
144.64.91.59
|
AS3243 | Servicos De Comunicacoes E Multimedia S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
109.48.106.220
|
AS2860 | Nos Comunicacoes, S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
109.49.83.42
|
AS2860 | Nos Comunicacoes, S.A. | BAD_RESPONSE | Returns unexpected response codes | 16% |
213.63.184.172
|
AS12926 | AR TELECOM - Acessos e Redes de Telecomunicacoes, S.A. | BAD_RESPONSE | Returns unexpected response codes | 14% |
62.28.181.242
|
AS15525 | Servicos De Comunicacoes E Multimedia S.A. | CENSORED | Censors or filters certain domains | 81% |
185.113.143.112
|
AS204094 | Web Solutions, Lda | CENSORED | Censors or filters certain domains | 65% |
62.233.41.232
|
AS59787 | Comercio e Prestacao de Servicos Informaticos, Lda | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 93% |
2.16.65.175
|
AS20940 | Akamai International B.V. | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 93% |
2.16.65.180
|
AS20940 | Akamai International B.V. | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 93% |
2.16.65.172
|
AS20940 | Akamai International B.V. | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 93% |
2.16.65.173
|
AS20940 | Akamai International B.V. | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 93% |
2.16.65.174
|
AS20940 | Akamai International B.V. | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 93% |
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.