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.
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89.203.185.2Checked 2 hours ago
CD-Telematika a.s.
AS25512
Šenov
49.7931, 18.3761
100% uptime
|18msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)71msQuery time (median DNS query time - median ping) -
185.16.81.235Checked 1 hour ago
Netcom Solutions s.r.o.
AS206703
Sentice
49.3108, 16.4467
100% uptime
|11msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)22msQuery time (median DNS query time - median ping) -
195.191.202.3Checked 1 hour ago
BEZVANET s.r.o.
AS196952
Skřivany
50.2685, 15.4992
99% uptime
|18msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)22msQuery time (median DNS query time - median ping) -
195.191.202.240Checked 7 hours ago
BEZVANET s.r.o.
AS196952
Skřivany
50.2685, 15.4992
96% uptime
|17msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)77msQuery time (median DNS query time - median ping) -
85.93.125.3Checked 4 hours ago
Quantcom, a.s.
AS29208
Slatina
49.1760, 16.6878
100% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)44msQuery time (median DNS query time - median ping) -
81.162.206.18Checked 4 hours ago
Martin Vicenik
AS34955
Slavičín
49.0880, 17.8735
100% uptime
|17msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)70msQuery time (median DNS query time - median ping) -
86.49.161.165Checked 7 hours ago
Vodafone Czech Republic a.s.
AS16019
Staré Město
49.0752, 17.4334
98% uptime
|11msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)85msQuery time (median DNS query time - median ping) -
93.99.14.76Checked 4 hours ago
Vodafone Czech Republic a.s.
AS16019
Staré Město
49.0752, 17.4334
98% uptime
|12msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)101msQuery time (median DNS query time - median ping) -
188.116.70.178Checked 4 hours ago
SELECT SYSTEM, s.r.o.
AS196822
Šumperk
49.9653, 16.9706
100% uptime
|11msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)38msQuery time (median DNS query time - median ping) -
77.48.24.110Checked 6 hours ago
Vodafone Czech Republic a.s.
AS16019
Teplice
50.6404, 13.8245
98% uptime
|10msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)80msQuery time (median DNS query time - median ping) -
78.157.171.14Checked 7 hours ago
SilesNet s.r.o.
AS43709
Třinec
49.6776, 18.6708
98% uptime
|19msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)62msQuery time (median DNS query time - median ping) -
5.181.94.176Checked 3 hours ago
UVT Internet s.r.o.
AS50825
Vestec
49.9805, 14.5049
98% uptime
|18msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)88msQuery time (median DNS query time - median ping) -
46.255.8.3Checked 6 hours ago
ISP Alliance a.s.
AS52084
Vrchlabí
50.6270, 15.6094
100% uptime
|15msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)62msQuery time (median DNS query time - median ping) -
89.190.64.2Checked 12 minutes ago
N_SYS s.r.o.
AS41088
Vrchlabí
50.6270, 15.6094
99% uptime
|15msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)39msQuery time (median DNS query time - median ping) -
89.190.64.4Checked 1 hour ago
N_SYS s.r.o.
AS41088
Vrchlabí
50.6270, 15.6094
100% uptime
|15msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)38msQuery time (median DNS query time - median ping) -
89.190.64.5Checked 26 minutes ago
N_SYS s.r.o.
AS41088
Vrchlabí
50.6270, 15.6094
100% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)39msQuery time (median DNS query time - median ping) -
89.190.64.115Checked 1 hour ago
"N_SYS s.r.o."
AS41088
Vrchlabí
50.6270, 15.6094
100% uptime
|12msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)37msQuery time (median DNS query time - median ping) -
46.16.121.128Checked 5 hours ago
MaRcom-Eko s.r.o.
AS44430
Všechlapy
50.2211, 15.0284
100% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)68msQuery time (median DNS query time - median ping) -
31.47.96.41Checked 35 minutes ago
FreeTel, s.r.o.
AS8251
Vsetín
49.3387, 17.9962
100% uptime
|22msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)67msQuery time (median DNS query time - median ping) -
31.47.98.57Checked 38 minutes ago
FreeTel, s.r.o.
AS8251
Vsetín
49.3387, 17.9962
100% uptime
|18msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)49msQuery time (median DNS query time - median ping) -
46.33.101.147Checked 2 hours ago
Quantcom, a.s.
AS29208
Vyškov
49.2775, 16.9990
96% uptime
|15msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)79msQuery time (median DNS query time - median ping) -
176.53.191.145Checked 4 hours ago
Brnonet.eu
AS209834
Žabčice
49.0116, 16.6026
96% uptime
|10msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)42msQuery time (median DNS query time - median ping) -
95.82.166.252Checked 1 hour ago
NETBOX Autonomous system
AS31246
Ždánice
49.0673, 17.0275
98% uptime
|17msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)46msQuery time (median DNS query time - median ping) -
95.82.166.253Checked 1 hour ago
NETBOX Autonomous system
AS31246
Ždánice
49.0673, 17.0275
100% uptime
|17msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)48msQuery time (median DNS query time - median ping)