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.
-
175.196.202.28Checked 6 hours ago
Korea Telecom
AS4766
Anyang-si
37.3925, 126.9269
100% uptime
|252msMedian ping from Nuremberg, Germany|23msJitter (1 standard deviation)281msQuery time (median DNS query time - median ping) -
121.144.65.83Checked 5 hours ago
Korea Telecom
AS4766
Busan
35.1017, 129.0300
100% uptime
|293msMedian ping from Nuremberg, Germany|22msJitter (1 standard deviation)17msQuery time (median DNS query time - median ping) -
138.2.120.107Checked 8 hours ago
Oracle Corporation
AS31898
Chuncheon
37.8747, 127.7342
100% uptime
|258msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)3msQuery time (median DNS query time - median ping) -
146.56.115.81Checked 1 hour ago
Oracle Corporation
AS31898
Chuncheon
37.8747, 127.7342
100% uptime
|258msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)1msQuery time (median DNS query time - median ping) -
124.195.183.18Checked 6 hours ago
CMB Daejeon Broadcasting Co,.Ltd
AS38684
Daejeon
36.3491, 127.3849
96% uptime
|268msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)297msQuery time (median DNS query time - median ping) -
221.158.33.212Checked 6 hours ago
Korea Telecom
AS4766
Daejeon
36.3491, 127.3849
100% uptime
|262msMedian ping from Nuremberg, Germany|14msJitter (1 standard deviation)313msQuery time (median DNS query time - median ping) -
59.30.37.191Checked 4 hours ago
Korea Telecom
AS4766
Gangneung
37.7527, 128.8724
100% uptime
|378msMedian ping from Nuremberg, Germany|111msJitter (1 standard deviation)358msQuery time (median DNS query time - median ping) -
64.176.224.102Checked 2 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|11msJitter (1 standard deviation)303msQuery time (median DNS query time - median ping) -
64.176.228.36Checked 2 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|223msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)304msQuery time (median DNS query time - median ping) -
132.226.18.139Checked 7 hours ago
Oracle Corporation
AS31898
Gangseo-gu
37.5308, 126.8751
100% uptime
|259msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)266msQuery time (median DNS query time - median ping) -
140.238.10.79Checked 7 hours ago
Oracle Corporation
AS31898
Gangseo-gu
37.5308, 126.8751
100% uptime
|247msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)293msQuery time (median DNS query time - median ping) -
141.164.35.183Checked 3 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|225msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)301msQuery time (median DNS query time - median ping) -
141.164.39.45Checked 3 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)301msQuery time (median DNS query time - median ping) -
141.164.43.20Checked 7 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|11msJitter (1 standard deviation)304msQuery time (median DNS query time - median ping) -
141.164.52.250Checked 5 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)304msQuery time (median DNS query time - median ping) -
146.56.160.153Checked 1 hour ago
Oracle Corporation
AS31898
Gangseo-gu
37.5308, 126.8751
98% uptime
|262msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)321msQuery time (median DNS query time - median ping) -
146.56.176.39Checked 6 hours ago
Oracle Corporation
AS31898
Gangseo-gu
37.5308, 126.8751
100% uptime
|286msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)260msQuery time (median DNS query time - median ping) -
152.70.241.33Checked 6 hours ago
Oracle Corporation
AS31898
Gangseo-gu
37.5308, 126.8751
100% uptime
|279msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)279msQuery time (median DNS query time - median ping) -
158.247.192.14Checked 5 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) -
158.247.194.213Checked 2 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|225msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)299msQuery time (median DNS query time - median ping) -
158.247.208.118Checked 5 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|222msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)305msQuery time (median DNS query time - median ping) -
158.247.215.203Checked 4 hours 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) -
158.247.232.78Checked 5 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|224msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)303msQuery time (median DNS query time - median ping) -
158.247.239.251Checked 2 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|223msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)305msQuery time (median DNS query time - median ping) -
158.247.241.178Checked 2 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|225msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)303msQuery time (median DNS query time - median ping) -
158.247.254.115Checked 2 hours ago
The Constant Company, LLC
AS20473
Gangseo-gu
37.5822, 126.8866
100% uptime
|225msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)244msQuery time (median DNS query time - median ping) -
193.123.225.73Checked 6 minutes ago
Oracle Corporation
AS31898
Gangseo-gu
37.5308, 126.8751
98% uptime
|247msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)326msQuery time (median DNS query time - median ping) -
193.123.247.241Checked 7 hours ago
Oracle Corporation
AS31898
Gangseo-gu
37.5308, 126.8751
98% uptime
|246msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)312msQuery time (median DNS query time - median ping) -
61.73.8.113Checked 6 hours ago
Korea Telecom
AS4766
Goyang-si
37.6564, 126.8350
100% uptime
|266msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)154msQuery time (median DNS query time - median ping) -
121.147.181.124Checked 7 hours ago
Korea Telecom
AS4766
Gwangju
35.1547, 126.9156
100% uptime
|268msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)366msQuery time (median DNS query time - median ping) -
203.253.64.1Checked 1 hour ago
Hankuk University of Foreign Studies Computer Center
AS9572
Gwangju
37.4100, 127.2572
100% uptime
|296msMedian ping from Nuremberg, Germany|20msJitter (1 standard deviation)273msQuery time (median DNS query time - median ping) -
220.78.146.193Checked 1 hour ago
Korea Telecom
AS4766
Haegok
37.1925, 127.2788
99% uptime
|281msMedian ping from Nuremberg, Germany|14msJitter (1 standard deviation)299msQuery time (median DNS query time - median ping) -
14.37.215.200Checked 7 hours ago
Korea Telecom
AS4766
Incheon
37.4565, 126.7052
100% uptime
|262msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)254msQuery time (median DNS query time - median ping) -
49.247.128.147Checked 3 hours ago
SMILESERV
AS38700
Incheon
37.4565, 126.7052
99% uptime
|215msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)334msQuery time (median DNS query time - median ping) -
49.247.131.217Checked 4 hours ago
SMILESERV
AS38700
Incheon
37.4565, 126.7052
100% uptime
|211msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)344msQuery time (median DNS query time - median ping) -
59.17.147.1Checked 7 hours ago
Korea Telecom
AS4766
Incheon
37.4565, 126.7052
100% uptime
|262msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)266msQuery time (median DNS query time - median ping) -
121.125.70.52Checked 4 hours ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
100% uptime
|257msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)266msQuery time (median DNS query time - median ping) -
210.181.1.24Checked 8 hours ago
DREAMLINE CO.
AS9457
Incheon
37.4565, 126.7052
98% uptime
|251msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)280msQuery time (median DNS query time - median ping) -
211.202.2.28Checked 7 hours ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
96% uptime
|257msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)603msQuery time (median DNS query time - median ping) -
211.245.31.2Checked 1 hour ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
100% uptime
|257msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)318msQuery time (median DNS query time - median ping) -
211.249.122.11Checked 55 minutes ago
DREAMLINE CO.
AS9457
Incheon
37.4565, 126.7052
98% uptime
|246msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)267msQuery time (median DNS query time - median ping) -
211.249.122.12Checked 6 hours ago
DREAMLINE CO.
AS9457
Incheon
37.4565, 126.7052
96% uptime
|254msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)258msQuery time (median DNS query time - median ping) -
218.239.211.87Checked 1 hour ago
SK Broadband Co Ltd
AS9318
Incheon
37.4565, 126.7052
100% uptime
|303msMedian ping from Nuremberg, Germany|14msJitter (1 standard deviation)278msQuery time (median DNS query time - median ping) -
211.250.39.141Checked 1 hour ago
Korea Telecom
AS4766
Pyeongtaek
36.9947, 127.0889
100% uptime
|284msMedian ping from Nuremberg, Germany|21msJitter (1 standard deviation)322msQuery time (median DNS query time - median ping) -
203.239.100.72Checked 5 hours ago
VP
AS9527
Sejong
36.5924, 127.2922
100% uptime
|224msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)231msQuery time (median DNS query time - median ping) -
1.234.31.2Checked 1 hour ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
100% uptime
|257msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)309msQuery time (median DNS query time - median ping) -
1.234.58.130Checked 2 hours ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
100% uptime
|257msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)317msQuery time (median DNS query time - median ping) -
49.254.100.98Checked 20 minutes ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
96% uptime
|254msMedian ping from Nuremberg, Germany|19msJitter (1 standard deviation)315msQuery time (median DNS query time - median ping) -
59.26.85.253Checked 7 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
96% uptime
|259msMedian ping from Nuremberg, Germany|21msJitter (1 standard deviation)396msQuery time (median DNS query time - median ping) -
103.55.191.20Checked 2 hours ago
LG DACOM Corporation
AS3786
Seoul
37.5660, 126.9784
99% uptime
|219msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)316msQuery time (median DNS query time - median ping) -
112.169.122.201Checked 4 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
99% uptime
|284msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)302msQuery time (median DNS query time - median ping) -
115.71.7.194Checked 2 hours ago
DAOU TECHNOLOGY
AS45996
Seoul
37.5660, 126.9784
100% uptime
|257msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)298msQuery time (median DNS query time - median ping) -
115.144.170.80Checked 6 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|252msMedian ping from Nuremberg, Germany|18msJitter (1 standard deviation)324msQuery time (median DNS query time - median ping) -
115.144.170.84Checked 5 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|282msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)314msQuery time (median DNS query time - median ping) -
115.144.223.93Checked 4 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|284msMedian ping from Nuremberg, Germany|21msJitter (1 standard deviation)308msQuery time (median DNS query time - median ping) -
115.178.76.41Checked 5 hours ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
100% uptime
|257msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)339msQuery time (median DNS query time - median ping) -
119.196.44.37Checked 4 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
97% uptime
|289msMedian ping from Nuremberg, Germany|21msJitter (1 standard deviation)336msQuery time (median DNS query time - median ping) -
121.126.41.146Checked 5 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
97% uptime
|286msMedian ping from Nuremberg, Germany|17msJitter (1 standard deviation)324msQuery time (median DNS query time - median ping) -
121.126.167.20Checked 4 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
99% uptime
|280msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)323msQuery time (median DNS query time - median ping) -
121.126.167.21Checked 4 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
97% uptime
|282msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)318msQuery time (median DNS query time - median ping) -
125.7.137.37Checked 5 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|285msMedian ping from Nuremberg, Germany|18msJitter (1 standard deviation)314msQuery time (median DNS query time - median ping) -
125.61.60.134Checked 6 hours ago
SK Broadband Co Ltd
AS23575
Seoul
37.5660, 126.9784
96% uptime
|213msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)356msQuery time (median DNS query time - median ping) -
125.61.60.151Checked 8 hours ago
SK Broadband Co Ltd
AS23575
Seoul
37.5660, 126.9784
98% uptime
|215msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)354msQuery time (median DNS query time - median ping) -
125.61.60.154Checked 5 hours ago
SK Broadband Co Ltd
AS23575
Seoul
37.5660, 126.9784
97% uptime
|217msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)339msQuery time (median DNS query time - median ping) -
175.119.156.149Checked 1 hour ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
99% uptime
|257msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)309msQuery time (median DNS query time - median ping) -
202.133.30.13Checked 6 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
98% uptime
|258msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)315msQuery time (median DNS query time - median ping) -
210.92.18.194Checked 1 hour ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|258msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)312msQuery time (median DNS query time - median ping) -
210.205.6.1Checked 1 hour ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
99% uptime
|257msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)266msQuery time (median DNS query time - median ping) -
211.249.122.103Checked 5 hours ago
DREAMLINE CO.
AS9457
Seoul
37.5660, 126.9784
100% uptime
|248msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)264msQuery time (median DNS query time - median ping) -
218.38.12.112Checked 5 hours ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
98% uptime
|257msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)267msQuery time (median DNS query time - median ping) -
218.50.4.2Checked 1 hour ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
100% uptime
|257msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)317msQuery time (median DNS query time - median ping) -
220.117.78.57Checked 1 hour ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|285msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)367msQuery time (median DNS query time - median ping) -
220.118.142.69Checked 5 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
99% uptime
|289msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)318msQuery time (median DNS query time - median ping) -
222.99.47.247Checked 8 hours ago
Korea Telecom
AS4766
Seoul
37.5660, 126.9784
100% uptime
|264msMedian ping from Nuremberg, Germany|23msJitter (1 standard deviation)296msQuery time (median DNS query time - median ping) -
222.233.44.14Checked 1 hour ago
SK Broadband Co Ltd
AS9318
Seoul
37.5660, 126.9784
100% uptime
|259msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)342msQuery time (median DNS query time - median ping) -
123.212.241.109Checked 5 hours ago
SK Broadband Co Ltd
AS9318
Suwon
37.2911, 127.0089
98% uptime
|258msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)321msQuery time (median DNS query time - median ping) -
211.198.79.167Checked 1 hour ago
Korea Telecom
AS4766
Suwon
37.2911, 127.0089
99% uptime
|289msMedian ping from Nuremberg, Germany|63msJitter (1 standard deviation)325msQuery time (median DNS query time - median ping)