For debugging only
This list is intended to help troubleshoot DNS issues. Do not configure these servers as your DNS resolver unless you know and trust the operator. A DNS resolver can log the domains you look up and can manipulate or block DNS responses.
Instead, use your ISP's default DNS server, or a global DNS server operated by an organisation you trust.
-
175.196.78.5Checked 7 hours ago
Korea Telecom
AS4766
Anyang-si
37.3925, 126.9269
100% uptime
|292msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)375msQuery time (median DNS query time - median ping) -
121.175.169.83Checked 7 hours ago
Korea Telecom
AS4766
Busan
35.1017, 129.0300
99% uptime
|286msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)316msQuery time (median DNS query time - median ping) -
14.46.4.159Checked 2 hours ago
Korea Telecom
AS4766
Daegu
35.8703, 128.5911
96% uptime
|285msMedian ping from Nuremberg, Germany|51msJitter (1 standard deviation)321msQuery time (median DNS query time - median ping) -
14.46.172.108Checked 3 hours ago
Korea Telecom
AS4766
Daegu
35.8703, 128.5911
96% uptime
|280msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)320msQuery time (median DNS query time - median ping) -
121.152.208.28Checked 7 hours ago
Korea Telecom
AS4766
Daejeon
36.3491, 127.3849
98% uptime
|288msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)339msQuery time (median DNS query time - median ping) -
221.158.33.212Checked 7 hours ago
Korea Telecom
AS4766
Daejeon
36.3491, 127.3849
100% uptime
|291msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)329msQuery time (median DNS query time - median ping) -
140.238.11.238Checked 6 hours ago
Oracle Corporation
AS31898
Gangseo-gu
37.5308, 126.8751
98% uptime
|292msMedian ping from Nuremberg, Germany|22msJitter (1 standard deviation)3msQuery time (median DNS query time - median ping) -
141.164.34.194Checked 1 hour ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)304msQuery time (median DNS query time - median ping) -
141.164.35.183Checked 1 hour ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)302msQuery time (median DNS query time - median ping) -
141.164.39.45Checked 48 minutes ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)305msQuery time (median DNS query time - median ping) -
141.164.56.68Checked 3 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)237msQuery time (median DNS query time - median ping) -
141.164.63.13Checked 1 hour ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
99% uptime
|223msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)247msQuery time (median DNS query time - median ping) -
158.247.194.213Checked 2 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)303msQuery time (median DNS query time - median ping) -
158.247.199.200Checked 58 minutes ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)302msQuery time (median DNS query time - median ping) -
158.247.213.101Checked 19 minutes ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)303msQuery time (median DNS query time - median ping) -
158.247.234.125Checked 1 hour ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|223msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)307msQuery time (median DNS query time - median ping) -
158.247.237.93Checked 4 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
98% uptime
|224msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)237msQuery time (median DNS query time - median ping) -
158.247.249.177Checked 14 minutes ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)304msQuery time (median DNS query time - median ping) -
158.247.250.248Checked 7 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)237msQuery time (median DNS query time - median ping) -
158.247.254.115Checked 3 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)246msQuery time (median DNS query time - median ping) -
1.234.31.2Checked 4 hours ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
98% uptime
|216msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)293msQuery time (median DNS query time - median ping) -
1.234.58.130Checked 4 hours ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
100% uptime
|218msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)296msQuery time (median DNS query time - median ping) -
14.51.252.197Checked 4 hours ago
Korea Telecom
AS4766
Incheon
37.4565, 126.7052
98% uptime
|293msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)341msQuery time (median DNS query time - median ping) -
14.51.253.229Checked 2 hours ago
Korea Telecom
AS4766
Incheon
37.4565, 126.7052
98% uptime
|292msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)309msQuery time (median DNS query time - median ping) -
59.17.147.1Checked 8 hours ago
Korea Telecom
AS4766
Incheon
37.4565, 126.7052
99% uptime
|288msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)276msQuery time (median DNS query time - median ping) -
118.37.149.141Checked 6 hours ago
Korea Telecom
AS4766
Incheon
37.4565, 126.7052
98% uptime
|284msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)303msQuery time (median DNS query time - median ping) -
121.125.70.52Checked 3 hours ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
96% uptime
|218msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)229msQuery time (median DNS query time - median ping) -
121.126.118.122Checked 3 hours ago
Korea Telecom
AS4766
Incheon
37.4565, 126.7052
100% uptime
|296msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)314msQuery time (median DNS query time - median ping) -
211.110.13.134Checked 5 hours ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
100% uptime
|218msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)227msQuery time (median DNS query time - median ping) -
211.202.2.27Checked 7 hours ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
98% uptime
|218msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)551msQuery time (median DNS query time - median ping) -
211.245.31.2Checked 29 minutes ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
99% uptime
|218msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)296msQuery time (median DNS query time - median ping) -
211.107.192.25Checked 4 hours ago
Korea Telecom
AS4766
Jeju City
33.5097, 126.5219
100% uptime
|296msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)316msQuery time (median DNS query time - median ping) -
14.38.109.121Checked 7 hours ago
Korea Telecom
AS4766
Pyeongtaek
36.9947, 127.0889
100% uptime
|288msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)293msQuery time (median DNS query time - median ping) -
203.239.100.206Checked 4 hours ago
VP
AS9527
Sejong
36.5924, 127.2922
96% uptime
|218msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)234msQuery time (median DNS query time - median ping) -
14.43.94.20Checked 45 minutes ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|281msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)402msQuery time (median DNS query time - median ping) -
14.63.223.230Checked 2 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
96% uptime
|290msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)304msQuery time (median DNS query time - median ping) -
20.249.202.171Checked 18 minutes ago
Microsoft Corporation
AS8075
Seoul
37.5660, 126.9784
100% uptime
|218msMedian ping from Nuremberg, Germany|11msJitter (1 standard deviation)280msQuery time (median DNS query time - median ping) -
49.247.128.147Checked 1 hour ago
SMILESERV
AS38700
Seoul
37.5660, 126.9784
100% uptime
|216msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)321msQuery time (median DNS query time - median ping) -
49.254.100.97Checked 3 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|283msMedian ping from Nuremberg, Germany|17msJitter (1 standard deviation)328msQuery time (median DNS query time - median ping) -
58.225.225.210Checked 4 hours ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
100% uptime
|218msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)268msQuery time (median DNS query time - median ping) -
103.55.191.20Checked 3 hours ago
LG DACOM Corporation
AS3786
Seoul
37.5660, 126.9784
98% uptime
|219msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)322msQuery time (median DNS query time - median ping) -
115.71.7.194Checked 7 hours ago
DAOU TECHNOLOGY
AS45996
Seoul
37.5660, 126.9784
100% uptime
|219msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)291msQuery time (median DNS query time - median ping) -
115.144.70.205Checked 5 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|281msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)321msQuery time (median DNS query time - median ping) -
121.126.41.146Checked 3 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
98% uptime
|299msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)302msQuery time (median DNS query time - median ping) -
121.126.83.80Checked 5 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|288msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)321msQuery time (median DNS query time - median ping) -
121.126.136.204Checked 6 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|291msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)318msQuery time (median DNS query time - median ping) -
121.130.178.65Checked 7 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|291msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)301msQuery time (median DNS query time - median ping) -
124.198.93.184Checked 2 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
98% uptime
|288msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)315msQuery time (median DNS query time - median ping) -
124.198.125.159Checked 4 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
98% uptime
|282msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)324msQuery time (median DNS query time - median ping) -
124.198.126.204Checked 2 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
96% uptime
|283msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)324msQuery time (median DNS query time - median ping) -
129.227.9.114Checked 3 hours ago
Zenlayer Inc
AS21859
Seoul
37.5660, 126.9784
98% uptime
|254msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)333msQuery time (median DNS query time - median ping) -
129.227.9.190Checked 5 hours ago
Zenlayer Inc
AS21859
Seoul
37.5660, 126.9784
100% uptime
|254msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)334msQuery time (median DNS query time - median ping) -
129.227.13.210Checked 1 hour ago
Zenlayer Inc
AS21859
Seoul
37.5660, 126.9784
100% uptime
|254msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)338msQuery time (median DNS query time - median ping) -
175.119.156.149Checked 23 minutes ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
98% uptime
|218msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)296msQuery time (median DNS query time - median ping) -
202.133.30.14Checked 6 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|285msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)326msQuery time (median DNS query time - median ping) -
210.181.1.24Checked 4 hours ago
DREAMLINE CO.
AS9457
Seoul
37.5660, 126.9784
100% uptime
|219msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)403msQuery time (median DNS query time - median ping) -
211.48.51.217Checked 1 hour ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
98% uptime
|282msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)294msQuery time (median DNS query time - median ping) -
211.48.51.218Checked 7 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|292msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)291msQuery time (median DNS query time - median ping) -
211.115.194.1Checked 6 hours ago
SEJONG NETWORKS
AS9848
Seoul
37.5660, 126.9784
100% uptime
|254msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)266msQuery time (median DNS query time - median ping) -
211.249.122.101Checked 7 hours ago
DREAMLINE CO.
AS9457
Seoul
37.5660, 126.9784
98% uptime
|232msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)229msQuery time (median DNS query time - median ping) -
218.152.0.252Checked 1 hour ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|282msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)304msQuery time (median DNS query time - median ping) -
220.70.19.233Checked 1 hour ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
98% uptime
|293msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)294msQuery time (median DNS query time - median ping) -
221.146.150.58Checked 8 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|289msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)315msQuery time (median DNS query time - median ping) -
222.110.255.60Checked 47 minutes ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
99% uptime
|288msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)340msQuery time (median DNS query time - median ping) -
125.130.12.153Checked 3 hours ago
Korea Telecom
AS4766
Suwon
37.2911, 127.0089
100% uptime
|296msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)336msQuery time (median DNS query time - median ping)