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DNS Server Issues in Spain

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

Last updated: · All countries

Servers with issues

56 servers
IP ASN Organization Issue Description Reliability
62.82.138.5
AS6739 Vodafone Ono, S.A. BAD_RESPONSE Returns unexpected response codes 58%
178.33.164.91
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 50%
217.116.8.252
AS16371 acens Technologies, S.L. BAD_RESPONSE Returns unexpected response codes 34%
217.116.8.253
AS16371 acens Technologies, S.L. BAD_RESPONSE Returns unexpected response codes 34%
185.226.233.161
AS205179 Virtualdeploy SL BAD_RESPONSE Returns unexpected response codes 29%
81.42.230.57
AS3352 Telefonica De Espana S.a.u. BAD_RESPONSE Returns unexpected response codes 23%
95.61.191.71
AS12430 Vodafone Spain BAD_RESPONSE Returns unexpected response codes 19%
94.23.83.55
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 19%
91.126.217.46
AS35699 Adamo Telecom Iberia S.A. BAD_RESPONSE Returns unexpected response codes 19%
90.168.88.15
AS12479 Orange Espagne SA BAD_RESPONSE Returns unexpected response codes 19%
89.128.32.234
AS12479 Orange Espagne SA BAD_RESPONSE Returns unexpected response codes 19%
87.98.230.98
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 19%
87.98.226.187
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 19%
82.223.239.15
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 19%
82.223.43.108
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 19%
82.223.203.19
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 19%
81.25.126.248
AS41541 sw hosting & communications technologies SL BAD_RESPONSE Returns unexpected response codes 19%
81.19.174.68
AS24830 Circuitos Aljarafe, S.l. BAD_RESPONSE Returns unexpected response codes 19%
54.38.165.205
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 19%
37.128.169.87
AS198479 Nunsys SA BAD_RESPONSE Returns unexpected response codes 19%
2.136.62.130
AS3352 Telefonica De Espana S.a.u. BAD_RESPONSE Returns unexpected response codes 19%
195.76.233.2
AS3352 Telefonica De Espana S.a.u. BAD_RESPONSE Returns unexpected response codes 19%
185.2.68.79
AS16371 acens Technologies, S.L. BAD_RESPONSE Returns unexpected response codes 19%
178.33.115.81
AS16276 OVH SAS BAD_RESPONSE Returns unexpected response codes 19%
194.30.93.185
AS3262 SAREnet, S.A. BAD_RESPONSE Returns unexpected response codes 18%
95.130.52.230
AS57286 Gigas Hosting S.A. BAD_RESPONSE Returns unexpected response codes 18%
85.208.114.8
AS202673 Ohz Digital S.L. BAD_RESPONSE Returns unexpected response codes 18%
82.223.0.65
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.1.228
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.100.32
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.100.50
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.101.123
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.101.197
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.101.214
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.102.233
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.102.244
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.103.76
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.107.34
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.107.219
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.108.133
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.1.253
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.223.100.141
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.165.58.225
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.165.171.127
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
82.165.2.67
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
5.250.189.241
AS8560 IONOS SE BAD_RESPONSE Returns unexpected response codes 16%
89.248.100.237
AS48348 Cloud Builders SA BAD_RESPONSE Returns unexpected response codes 14%
89.26.172.68
AS5626 Infocomunicacoes, S.A. BAD_RESPONSE Returns unexpected response codes 14%
82.194.90.62
AS16371 acens Technologies, S.L. CENSORED Censors or filters certain domains 97%
82.194.90.63
AS16371 acens Technologies, S.L. CENSORED Censors or filters certain domains 97%
82.194.90.64
AS16371 acens Technologies, S.L. CENSORED Censors or filters certain domains 97%
82.194.90.61
AS16371 acens Technologies, S.L. CENSORED Censors or filters certain domains 97%
31.24.159.18
AS50926 Axarnet Comunicaciones, S.l. CENSORED Censors or filters certain domains 97%
188.164.199.43
AS50926 Axarnet Comunicaciones, S.l. CENSORED Censors or filters certain domains 49%
80.67.98.227
AS8426 Claranet Limited NX_HIJACK Hijacks NXDOMAIN responses — redirects failed lookups 86%
176.101.77.67
AS42947 Telfy Telecom S.L. NX_HIJACK Hijacks NXDOMAIN responses — redirects failed lookups 80%

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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