DNS Server Issues in Poland
59 DNS servers in Poland with detected issues. These servers respond to probes but have problems that may affect usability.
Last updated: · All countries
Servers with issues
59 servers
| IP | ASN | Organization | Issue | Description | Reliability |
|---|---|---|---|---|---|
153.19.105.120
|
AS5550 | Technical University of Gdansk, Academic Computer Center TASK | BAD_RESPONSE | Returns unexpected response codes | 42% |
185.188.117.102
|
AS206369 | TELEKOM.pl Sp. z o.o. | BAD_RESPONSE | Returns unexpected response codes | 33% |
94.152.184.178
|
AS29522 | Cyber_Folks S.A. | BAD_RESPONSE | Returns unexpected response codes | 31% |
195.116.242.240
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 20% |
95.143.242.138
|
AS49888 | Ultranet Sp. z o.o. | BAD_RESPONSE | Returns unexpected response codes | 18% |
194.1.144.90
|
AS43476 | leniwiec.biz Grzegorz Kulewski | BAD_RESPONSE | Returns unexpected response codes | 7% |
94.40.124.254
|
AS20960 | TK Telekom sp. z o.o. | BAD_RESPONSE | Returns unexpected response codes | 7% |
93.105.246.19
|
AS29314 | Vectra S.A. | BAD_RESPONSE | Returns unexpected response codes | 6% |
91.227.88.8
|
AS197154 | Soft Group Wojciech Mioduszewski | BAD_RESPONSE | Returns unexpected response codes | 6% |
89.161.27.84
|
AS39375 | Telekomunikacja Podlasie Sp. z o.o. | BAD_RESPONSE | Returns unexpected response codes | 6% |
85.89.187.27
|
AS16342 | Toya sp.z.o.o | BAD_RESPONSE | Returns unexpected response codes | 6% |
83.142.186.141
|
AS34254 | HOR.NET Polska Sp.z o.o. | BAD_RESPONSE | Returns unexpected response codes | 6% |
81.95.207.16
|
AS39816 | Volta Communications Sp.z.o.o. | BAD_RESPONSE | Returns unexpected response codes | 6% |
81.18.213.6
|
AS6830 | Liberty Global B.V. | BAD_RESPONSE | Returns unexpected response codes | 6% |
80.72.40.34
|
AS20853 | eTOP sp. z o.o. | BAD_RESPONSE | Returns unexpected response codes | 6% |
80.51.102.50
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 6% |
77.65.176.166
|
AS210220 | ICT FUTURE Sp. z o.o. | BAD_RESPONSE | Returns unexpected response codes | 6% |
217.17.38.102
|
AS43253 | Cebit MAriusz Marton sp.J. | BAD_RESPONSE | Returns unexpected response codes | 6% |
213.226.121.4
|
AS44790 | Kindburg LLC | BAD_RESPONSE | Returns unexpected response codes | 6% |
212.244.112.40
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 6% |
195.20.138.242
|
AS205288 | Firma Przemyslowo-Handlowo-Uslugowa Tekanet Konrad Niewiedzial | BAD_RESPONSE | Returns unexpected response codes | 6% |
195.136.206.152
|
AS206442 | Rawi-Net Sp. z o.o | BAD_RESPONSE | Returns unexpected response codes | 6% |
193.111.144.145
|
AS16263 | Uniwersytet Technologiczno-Humanistyczny Im. Kazimierza Pulaskiego W Radomiu | BAD_RESPONSE | Returns unexpected response codes | 6% |
188.147.175.148
|
AS12912 | T-Mobile Polska S.A. | BAD_RESPONSE | Returns unexpected response codes | 6% |
156.17.4.1
|
AS8970 | Wroclaw Centre of Networking and Supercomputing | BAD_RESPONSE | Returns unexpected response codes | 6% |
84.10.33.251
|
AS9141 | Play | BAD_RESPONSE | Returns unexpected response codes | 5% |
83.144.92.218
|
AS9141 | Play | BAD_RESPONSE | Returns unexpected response codes | 5% |
80.48.237.40
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
80.50.50.142
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
80.50.50.150
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
80.48.202.105
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
80.48.28.37
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
80.48.28.38
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
80.48.237.41
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
5.185.217.206
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
46.170.189.92
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
46.170.192.155
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
46.170.208.202
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
46.170.211.162
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
46.170.211.163
|
AS5617 | Orange Polska Spolka Akcyjna | BAD_RESPONSE | Returns unexpected response codes | 5% |
188.64.80.129
|
AS57811 | Redge Technologies sp. z o.o. | BAD_RESPONSE | Returns unexpected response codes | 5% |
188.64.84.225
|
AS57811 | Redge Technologies sp. z o.o. | BAD_RESPONSE | Returns unexpected response codes | 5% |
91.189.39.69
|
AS43171 | Maxnet | BAD_RESPONSE | Returns unexpected response codes | 5% |
81.15.193.194
|
AS20804 | Exatel S.A. | BAD_RESPONSE | Returns unexpected response codes | 5% |
91.189.39.70
|
AS43171 | Maxnet | BAD_RESPONSE | Returns unexpected response codes | 5% |
145.239.94.164
|
AS16276 | OVH SAS | BAD_RESPONSE | Returns unexpected response codes | 5% |
193.0.79.169
|
AS8890 | University of Warsaw | BAD_RESPONSE | Returns unexpected response codes | 5% |
77.55.209.158
|
AS15967 | Nazwa.pl Sp.z.o.o. | CENSORED | Censors or filters certain domains | 99% |
57.128.237.53
|
AS16276 | OVH SAS | CENSORED | Censors or filters certain domains | 99% |
57.128.195.101
|
AS16276 | OVH SAS | CENSORED | Censors or filters certain domains | 99% |
51.77.63.182
|
AS16276 | OVH SAS | CENSORED | Censors or filters certain domains | 99% |
51.77.59.221
|
AS16276 | OVH SAS | CENSORED | Censors or filters certain domains | 99% |
51.68.143.165
|
AS16276 | OVH SAS | CENSORED | Censors or filters certain domains | 99% |
51.38.159.128
|
AS16276 | OVH SAS | CENSORED | Censors or filters certain domains | 99% |
5.135.47.204
|
AS16276 | OVH SAS | CENSORED | Censors or filters certain domains | 99% |
51.38.156.162
|
AS16276 | OVH SAS | CENSORED | Censors or filters certain domains | 90% |
217.182.74.187
|
AS16276 | OVH SAS | CENSORED | Censors or filters certain domains | 73% |
88.220.66.252
|
AS20804 | Exatel S.A. | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 100% |
91.233.237.201
|
AS198112 | PROSAT s.c. | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 98% |
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.