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.
-
61.112.55.218Checked 5 hours ago
NTT DOCOMO BUSINESS,Inc.
AS4713
Tokyo
35.6895, 139.6917
100% uptime
|260msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)554msQuery time (median DNS query time - median ping) -
65.181.4.115Checked 2 hours ago
Space Exploration Technologies Corporation
AS14593
Tokyo
35.6895, 139.6917
99% uptime
|303msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)347msQuery time (median DNS query time - median ping) -
85.113.70.105Checked 6 hours ago
xTom Japan Corporation
AS3258
Tokyo
35.6895, 139.6917
98% uptime
|276msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)282msQuery time (median DNS query time - median ping) -
89.116.88.67Checked 5 hours ago
Nearoute Limited
AS51847
Tokyo
35.6895, 139.6917
98% uptime
|274msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)269msQuery time (median DNS query time - median ping) -
91.200.243.33Checked 6 hours ago
xTom Japan Corporation
AS3258
Tokyo
35.6895, 139.6917
96% uptime
|242msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)279msQuery time (median DNS query time - median ping) -
103.129.137.1Checked 2 hours ago
METAGE TECHNOLOGY PTE. LTD.
AS150288
Tokyo
35.6895, 139.6917
99% uptime
|253msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)266msQuery time (median DNS query time - median ping) -
103.183.198.1Checked 4 hours ago
Skycloud Computing co., Ltd.
AS7483
Tokyo
35.6895, 139.6917
98% uptime
|246msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)260msQuery time (median DNS query time - median ping) -
114.16.194.190Checked 1 hour ago
KDDI CORPORATION
AS2516
Tokyo
35.6895, 139.6917
98% uptime
|271msMedian ping from Nuremberg, Germany|31msJitter (1 standard deviation)295msQuery time (median DNS query time - median ping) -
114.156.20.178Checked 2 hours ago
NTT DOCOMO BUSINESS,Inc.
AS4713
Tokyo
35.6895, 139.6917
100% uptime
|262msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)313msQuery time (median DNS query time - median ping) -
116.80.146.135Checked 52 minutes ago
NTT PC Communications, Inc.
AS2514
Tokyo
35.6895, 139.6917
100% uptime
|278msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)285msQuery time (median DNS query time - median ping) -
116.82.30.104Checked 1 hour ago
Sony Network Communications Inc.
AS2527
Tokyo
35.6895, 139.6917
99% uptime
|261msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)277msQuery time (median DNS query time - median ping) -
120.143.48.129Checked 6 hours ago
NTT PC Communications, Inc.
AS2514
Tokyo
35.6895, 139.6917
98% uptime
|268msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)372msQuery time (median DNS query time - median ping) -
125.103.169.194Checked 1 hour ago
ARTERIA Networks Corporation
AS17506
Tokyo
35.6895, 139.6917
98% uptime
|242msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)250msQuery time (median DNS query time - median ping) -
131.147.205.105Checked 2 hours ago
Sony Network Communications Inc.
AS2527
Tokyo
35.6895, 139.6917
100% uptime
|261msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)291msQuery time (median DNS query time - median ping) -
133.242.228.147Checked 5 hours ago
SAKURA Internet Inc.
AS7684
Tokyo
35.6895, 139.6917
100% uptime
|282msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)303msQuery time (median DNS query time - median ping) -
134.122.137.174Checked 38 minutes ago
CTG Server Limited
AS152194
Tokyo
35.6895, 139.6917
100% uptime
|230msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)256msQuery time (median DNS query time - median ping) -
134.122.137.177Checked 2 hours ago
CTG Server Limited
AS152194
Tokyo
35.6895, 139.6917
100% uptime
|230msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)253msQuery time (median DNS query time - median ping) -
139.162.90.88Checked 2 hours ago
Akamai Connected Cloud
AS63949
Tokyo
35.6895, 139.6917
99% uptime
|249msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)252msQuery time (median DNS query time - median ping) -
139.162.110.32Checked 2 hours ago
Akamai Connected Cloud
AS63949
Tokyo
35.6895, 139.6917
100% uptime
|251msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)260msQuery time (median DNS query time - median ping) -
139.162.121.153Checked 3 hours ago
Akamai Connected Cloud
AS63949
Tokyo
35.6895, 139.6917
96% uptime
|244msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)269msQuery time (median DNS query time - median ping) -
141.11.139.106Checked 6 hours ago
ByteVirt LLC
AS212336
Tokyo
35.6895, 139.6917
98% uptime
|252msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)255msQuery time (median DNS query time - median ping) -
145.190.55.29Checked 7 hours ago
Microsoft Corporation
AS8069
Tokyo
35.6895, 139.6917
100% uptime
|245msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)257msQuery time (median DNS query time - median ping) -
148.109.52.22Checked 3 hours ago
COLT Technology Services Group Limited
AS8220
Tokyo
35.6895, 139.6917
100% uptime
|224msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)339msQuery time (median DNS query time - median ping) -
150.99.189.250Checked 6 hours ago
Research Organization of Information and Systems, National Institute of Informatics
AS2907
Tokyo
35.6895, 139.6917
100% uptime
|267msMedian ping from Nuremberg, Germany|23msJitter (1 standard deviation)386msQuery time (median DNS query time - median ping) -
150.249.208.117Checked 6 hours ago
Sony Network Communications Inc.
AS2527
Tokyo
35.6895, 139.6917
100% uptime
|259msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)547msQuery time (median DNS query time - median ping) -
151.248.68.220Checked 7 hours ago
Datacamp Limited
AS212238
Tokyo
35.6895, 139.6917
98% uptime
|251msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)276msQuery time (median DNS query time - median ping) -
153.121.44.21Checked 6 hours ago
SAKURA Internet Inc.
AS9370
Tokyo
35.6895, 139.6917
100% uptime
|276msMedian ping from Nuremberg, Germany|41msJitter (1 standard deviation)294msQuery time (median DNS query time - median ping) -
153.124.133.151Checked 1 hour ago
GMO GlobalSign Holdings K.K.
AS131921
Tokyo
35.6895, 139.6917
99% uptime
|275msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)250msQuery time (median DNS query time - median ping) -
153.124.133.250Checked 1 hour ago
GMO GlobalSign Holdings K.K.
AS131921
Tokyo
35.6895, 139.6917
100% uptime
|236msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)262msQuery time (median DNS query time - median ping) -
153.126.195.35Checked 7 hours ago
SAKURA Internet Inc.
AS7684
Tokyo
35.6895, 139.6917
98% uptime
|289msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)120msQuery time (median DNS query time - median ping) -
157.20.52.132Checked 3 hours ago
EZSVS Japan Co., Ltd.
AS151383
Tokyo
35.6895, 139.6917
100% uptime
|279msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)331msQuery time (median DNS query time - median ping) -
160.16.149.100Checked 5 hours ago
SAKURA Internet Inc.
AS9370
Tokyo
35.6895, 139.6917
100% uptime
|257msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)260msQuery time (median DNS query time - median ping) -
160.16.209.95Checked 47 minutes ago
SAKURA Internet Inc.
AS9370
Tokyo
35.6895, 139.6917
98% uptime
|257msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)370msQuery time (median DNS query time - median ping) -
160.187.29.33Checked 2 hours ago
THX Corp.
AS152868
Tokyo
35.6895, 139.6917
100% uptime
|295msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)338msQuery time (median DNS query time - median ping) -
160.251.81.17Checked 1 hour ago
GMO Internet Group, Inc.
AS7506
Tokyo
35.6895, 139.6917
100% uptime
|264msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)272msQuery time (median DNS query time - median ping) -
161.248.63.63Checked 2 hours ago
Alice Network
AS215355
Tokyo
35.6895, 139.6917
100% uptime
|223msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)240msQuery time (median DNS query time - median ping) -
172.104.64.167Checked 55 minutes ago
Akamai Connected Cloud
AS63949
Tokyo
35.6895, 139.6917
99% uptime
|251msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)265msQuery time (median DNS query time - median ping) -
172.104.88.10Checked 7 hours ago
Akamai Connected Cloud
AS63949
Tokyo
35.6895, 139.6917
98% uptime
|250msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)269msQuery time (median DNS query time - median ping) -
172.104.90.123Checked 2 hours ago
Akamai Connected Cloud
AS63949
Tokyo
35.6895, 139.6917
98% uptime
|245msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)281msQuery time (median DNS query time - median ping) -
172.207.76.174Checked 4 hours ago
Microsoft Corporation
AS8075
Tokyo
35.6895, 139.6917
96% uptime
|225msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)244msQuery time (median DNS query time - median ping) -
172.237.20.186Checked 4 hours ago
Akamai Connected Cloud
AS63949
Tokyo
35.6895, 139.6917
100% uptime
|255msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)263msQuery time (median DNS query time - median ping) -
175.41.211.69Checked 4 hours ago
Amazon.com, Inc.
AS16509
Tokyo
35.6895, 139.6917
100% uptime
|238msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)376msQuery time (median DNS query time - median ping) -
178.157.94.139Checked 7 hours ago
Datacamp Limited
AS212238
Tokyo
35.6895, 139.6917
98% uptime
|250msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)276msQuery time (median DNS query time - median ping) -
185.195.66.107Checked 3 hours ago
M247 Europe SRL
AS9009
Tokyo
35.6895, 139.6917
100% uptime
|254msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)261msQuery time (median DNS query time - median ping) -
194.68.27.21Checked 7 hours ago
M247 Europe SRL
AS9009
Tokyo
35.6895, 139.6917
98% uptime
|250msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)258msQuery time (median DNS query time - median ping) -
195.245.242.206Checked 45 minutes ago
xTom Japan Corporation
AS3258
Tokyo
35.6895, 139.6917
100% uptime
|243msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)270msQuery time (median DNS query time - median ping) -
202.152.109.156Checked 6 hours ago
FreeBit Co.,Ltd.
AS10013
Tokyo
35.6895, 139.6917
100% uptime
|265msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)576msQuery time (median DNS query time - median ping) -
203.178.136.36Checked 11 seconds ago
WIDE Project
AS2500
Tokyo
35.6895, 139.6917
100% uptime
|245msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)264msQuery time (median DNS query time - median ping) -
211.5.111.78Checked 59 seconds ago
KDDI CORPORATION
AS2516
Tokyo
35.6895, 139.6917
98% uptime
|278msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)216msQuery time (median DNS query time - median ping) -
219.122.9.131Checked 2 hours ago
Equinix (EMEA) Acquisition Enterprises B.V.
AS15830
Tokyo
35.6895, 139.6917
98% uptime
|258msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)280msQuery time (median DNS query time - median ping) -
222.146.29.30Checked 1 hour ago
NTT DOCOMO BUSINESS,Inc.
AS4713
Tokyo
35.6895, 139.6917
99% uptime
|258msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)286msQuery time (median DNS query time - median ping) -
223.26.15.1Checked 32 minutes ago
Skycloud Computing co., Ltd.
AS7483
Tokyo
35.6895, 139.6917
100% uptime
|255msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)274msQuery time (median DNS query time - median ping) -
223.26.15.2Checked 2 hours ago
Skycloud Computing co., Ltd.
AS7483
Tokyo
35.6895, 139.6917
99% uptime
|254msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)273msQuery time (median DNS query time - median ping) -
202.255.24.2Checked 4 hours ago
Research Organization of Information and Systems, National Institute of Informatics
AS2907
Toyama
36.7000, 137.2167
100% uptime
|292msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)320msQuery time (median DNS query time - median ping) -
165.101.8.2Checked 3 hours ago
Incorporated Educational Institution Kaichigakuen
AS152870
Tsukubamirai
35.9841, 140.0093
100% uptime
|269msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)262msQuery time (median DNS query time - median ping) -
157.76.40.5Checked 2 hours ago
Research Organization of Information and Systems, National Institute of Informatics
AS2907
Ube
33.9431, 131.2511
100% uptime
|290msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)288msQuery time (median DNS query time - median ping) -
116.80.146.137Checked 2 hours ago
NTT PC Communications, Inc.
AS2514
Urayasu
35.6588, 139.9006
100% uptime
|271msMedian ping from Nuremberg, Germany|71msJitter (1 standard deviation)294msQuery time (median DNS query time - median ping) -
202.245.136.130Checked 5 hours ago
Research Organization of Information and Systems, National Institute of Informatics
AS2907
Yamaguchi
34.1833, 131.4667
98% uptime
|295msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)334msQuery time (median DNS query time - median ping) -
60.64.171.109Checked 2 hours ago
SoftBank Corp.
AS17676
Yokohama
35.4333, 139.6500
98% uptime
|258msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)351msQuery time (median DNS query time - median ping) -
111.217.203.106Checked 6 hours ago
Sony Network Communications Inc.
AS2527
Yokohama
35.4333, 139.6500
100% uptime
|260msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)284msQuery time (median DNS query time - median ping) -
119.245.135.5Checked 8 hours ago
NTT PC Communications, Inc.
AS2514
Yokohama
35.4333, 139.6500
98% uptime
|261msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)310msQuery time (median DNS query time - median ping) -
150.249.148.207Checked 1 hour ago
Sony Network Communications Inc.
AS2527
Yokohama
35.4333, 139.6500
100% uptime
|266msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)290msQuery time (median DNS query time - median ping)