DNS Server Issues in Vietnam
65 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
65 servers
| IP | ASN | Organization | Issue | Description | Reliability |
|---|---|---|---|---|---|
156.59.75.74
|
AS21859 | Zenlayer Inc | BAD_RESPONSE | Returns unexpected response codes | 22% |
156.59.75.72
|
AS21859 | Zenlayer Inc | BAD_RESPONSE | Returns unexpected response codes | 22% |
156.59.75.76
|
AS21859 | Zenlayer Inc | BAD_RESPONSE | Returns unexpected response codes | 20% |
156.59.75.75
|
AS21859 | Zenlayer Inc | BAD_RESPONSE | Returns unexpected response codes | 20% |
156.59.75.73
|
AS21859 | Zenlayer Inc | BAD_RESPONSE | Returns unexpected response codes | 20% |
203.205.50.200
|
AS45903 | CMC Telecom Infrastructure Company | BAD_RESPONSE | Returns unexpected response codes | 11% |
49.156.53.165
|
AS56141 | Danang ICT Infrastructure Development Center | BAD_RESPONSE | Returns unexpected response codes | 6% |
210.211.109.204
|
AS38731 | CHT Compamy Ltd | BAD_RESPONSE | Returns unexpected response codes | 6% |
203.162.125.129
|
AS45899 | VNPT Corp | BAD_RESPONSE | Returns unexpected response codes | 6% |
183.91.184.14
|
AS131127 | Global Telecom Corp | BAD_RESPONSE | Returns unexpected response codes | 6% |
183.91.184.18
|
AS131127 | Global Telecom Corp | BAD_RESPONSE | Returns unexpected response codes | 6% |
14.225.232.26
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 6% |
123.30.240.19
|
AS45899 | VNPT Corp | BAD_RESPONSE | Returns unexpected response codes | 6% |
113.161.86.104
|
AS45899 | VNPT Corp | BAD_RESPONSE | Returns unexpected response codes | 6% |
103.196.16.3
|
AS131438 | VIETNAM POST | BAD_RESPONSE | Returns unexpected response codes | 6% |
103.139.14.2
|
AS135972 | Quang Nam Department of Information and Communications | BAD_RESPONSE | Returns unexpected response codes | 6% |
123.25.116.228
|
AS45899 | VNPT Corp | BAD_RESPONSE | Returns unexpected response codes | 6% |
113.160.227.32
|
AS45899 | VNPT Corp | BAD_RESPONSE | Returns unexpected response codes | 6% |
45.124.86.148
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.124.86.231
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.124.86.232
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.124.84.22
|
AS135967 | Bach Kim Network solutions Join stock company | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.124.86.134
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.124.87.100
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.124.87.101
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.124.86.29
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.124.86.233
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.124.86.235
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
45.117.76.241
|
AS131428 | Rainbow E-Commerce Company Limited | BAD_RESPONSE | Returns unexpected response codes | 5% |
42.117.7.80
|
AS18403 | FPT Telecom Company | BAD_RESPONSE | Returns unexpected response codes | 5% |
150.95.111.47
|
AS131392 | GMO-Z.com Runsystem Joint Stock Company | BAD_RESPONSE | Returns unexpected response codes | 5% |
150.95.111.90
|
AS131392 | GMO-Z.com Runsystem Joint Stock Company | BAD_RESPONSE | Returns unexpected response codes | 5% |
150.95.109.220
|
AS131392 | GMO-Z.com Runsystem Joint Stock Company | BAD_RESPONSE | Returns unexpected response codes | 5% |
14.241.40.147
|
AS45899 | VNPT Corp | BAD_RESPONSE | Returns unexpected response codes | 5% |
137.59.106.178
|
AS131392 | GMO-Z.com Runsystem Joint Stock Company | BAD_RESPONSE | Returns unexpected response codes | 5% |
123.30.175.113
|
AS45899 | VNPT Corp | BAD_RESPONSE | Returns unexpected response codes | 5% |
123.30.174.2
|
AS45899 | VNPT Corp | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.74.123.10
|
AS135967 | Bach Kim Network solutions Join stock company | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.74.122.8
|
AS135967 | Bach Kim Network solutions Join stock company | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.74.122.16
|
AS135967 | Bach Kim Network solutions Join stock company | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.74.123.7
|
AS135967 | Bach Kim Network solutions Join stock company | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.74.123.9
|
AS135967 | Bach Kim Network solutions Join stock company | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.74.123.34
|
AS135967 | Bach Kim Network solutions Join stock company | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.74.123.3
|
AS135967 | Bach Kim Network solutions Join stock company | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.74.123.12
|
AS135967 | Bach Kim Network solutions Join stock company | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.82.68
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.80.16
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.80.66
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.80.183
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.80.186
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.80.116
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.82.76
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.83.206
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.82.73
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.48.82.75
|
AS135905 | VIETNAM POSTS AND TELECOMMUNICATIONS GROUP | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.27.237.155
|
AS131386 | Long Van System Solution JSC | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.254.12.57
|
AS131428 | Rainbow E-Commerce Company Limited | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.254.12.253
|
AS131428 | Rainbow E-Commerce Company Limited | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.142.25.5
|
AS135951 | Webico Company Limited | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.130.216.10
|
AS135951 | Webico Company Limited | BAD_RESPONSE | Returns unexpected response codes | 5% |
103.119.84.204
|
AS7643 | Vietnam Posts and Telecommunications VNPT | BAD_RESPONSE | Returns unexpected response codes | 5% |
203.162.125.130
|
AS45899 | VNPT Corp | BAD_RESPONSE | Returns unexpected response codes | 4% |
156.59.139.66
|
AS21859 | Zenlayer Inc | CENSORED | Censors or filters certain domains | 99% |
103.45.233.199
|
AS135921 | Maxserver Company Limited | CENSORED | Censors or filters certain domains | 90% |
103.160.248.45
|
AS140768 | Binh Dinh Department of Information and Communications | NX_HIJACK | Hijacks NXDOMAIN responses — redirects failed lookups | 99% |
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.