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DNS Server Issues in Vietnam

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

Last updated: · All countries

Servers with issues

62 servers
IP ASN Organization Issue Description Reliability
14.238.96.162
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 73%
203.162.125.130
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 6%
49.156.53.165
AS56141 Danang ICT Infrastructure Development Center BAD_RESPONSE Returns unexpected response codes 2%
210.211.109.204
AS38731 CHT Compamy Ltd BAD_RESPONSE Returns unexpected response codes 2%
203.162.125.129
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 2%
183.91.184.14
AS131127 Global Telecom Corp BAD_RESPONSE Returns unexpected response codes 2%
183.91.184.18
AS131127 Global Telecom Corp BAD_RESPONSE Returns unexpected response codes 2%
14.225.232.26
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 2%
123.30.240.19
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 2%
113.161.86.104
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 2%
103.196.16.3
AS131438 VIETNAM POST BAD_RESPONSE Returns unexpected response codes 2%
103.139.14.2
AS135972 Quang Nam Department of Information and Communications BAD_RESPONSE Returns unexpected response codes 2%
123.25.116.228
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 2%
113.160.227.32
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 1%
113.161.116.121
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 1%
45.124.86.148
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
45.124.86.231
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
45.124.86.232
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
45.124.84.22
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
45.124.84.144
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
45.124.86.134
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
45.124.87.100
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
45.124.87.101
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
45.124.86.29
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
45.124.86.235
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
45.124.86.233
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
45.117.76.241
AS131428 Rainbow E-Commerce Company Limited BAD_RESPONSE Returns unexpected response codes 1%
42.117.7.80
AS18403 FPT Telecom Company BAD_RESPONSE Returns unexpected response codes 1%
150.95.111.90
AS131392 GMO-Z.com Runsystem Joint Stock Company BAD_RESPONSE Returns unexpected response codes 1%
150.95.109.220
AS131392 GMO-Z.com Runsystem Joint Stock Company BAD_RESPONSE Returns unexpected response codes 1%
150.95.111.47
AS131392 GMO-Z.com Runsystem Joint Stock Company BAD_RESPONSE Returns unexpected response codes 1%
14.241.40.147
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 1%
137.59.106.178
AS131392 GMO-Z.com Runsystem Joint Stock Company BAD_RESPONSE Returns unexpected response codes 1%
123.30.174.2
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 1%
123.30.175.113
AS45899 VNPT Corp BAD_RESPONSE Returns unexpected response codes 1%
103.74.123.10
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
103.74.122.8
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
103.74.122.16
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
103.74.123.3
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
103.74.123.7
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
103.74.123.9
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
103.74.123.34
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
103.74.123.12
AS135967 Bach Kim Network solutions Join stock company BAD_RESPONSE Returns unexpected response codes 1%
103.48.80.66
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.48.82.68
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.48.80.16
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.48.80.183
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.48.80.186
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.48.80.116
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.48.83.206
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.48.82.73
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.48.82.75
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.48.82.76
AS135905 VIETNAM POSTS AND TELECOMMUNICATIONS GROUP BAD_RESPONSE Returns unexpected response codes 1%
103.27.237.155
AS131386 Long Van System Solution JSC BAD_RESPONSE Returns unexpected response codes 1%
103.254.12.57
AS131428 Rainbow E-Commerce Company Limited BAD_RESPONSE Returns unexpected response codes 1%
103.254.12.253
AS131428 Rainbow E-Commerce Company Limited BAD_RESPONSE Returns unexpected response codes 1%
103.142.25.5
AS135951 Webico Company Limited BAD_RESPONSE Returns unexpected response codes 1%
103.130.216.10
AS135951 Webico Company Limited BAD_RESPONSE Returns unexpected response codes 1%
103.119.84.204
AS7643 Vietnam Posts and Telecommunications VNPT BAD_RESPONSE Returns unexpected response codes 1%
103.160.248.45
AS140768 Binh Dinh Department of Information and Communications CENSORED Censors or filters certain domains 100%
156.59.139.66
AS21859 Zenlayer Inc CENSORED Censors or filters certain domains 100%
103.45.233.199
AS135921 Maxserver Company Limited CENSORED Censors or filters certain domains 97%

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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