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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217.197.151.181Checked 6 hours ago
ORIGINAL AS CZ-NORDICTELECOMREGIONAL
AS42908
Prosenice
49.4918, 17.4849
100% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)42msQuery time (median DNS query time - median ping) -
217.197.151.184Checked 4 hours ago
ORIGINAL AS CZ-NORDICTELECOMREGIONAL
AS42908
Prosenice
49.4918, 17.4849
100% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)44msQuery time (median DNS query time - median ping) -
217.197.151.190Checked 4 hours ago
ORIGINAL AS CZ-NORDICTELECOMREGIONAL
AS42908
Prosenice
49.4918, 17.4849
100% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)43msQuery time (median DNS query time - median ping) -
46.33.96.39Checked 7 hours ago
Quantcom, a.s.
AS29208
Prostějov
49.4719, 17.1118
99% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)39msQuery time (median DNS query time - median ping) -
46.33.99.161Checked 7 hours ago
Quantcom, a.s.
AS29208
Prostějov
49.4719, 17.1118
97% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)39msQuery time (median DNS query time - median ping) -
46.33.101.147Checked 4 hours ago
Quantcom, a.s.
AS29208
Prostějov
49.4719, 17.1118
99% uptime
|15msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)80msQuery time (median DNS query time - median ping) -
46.33.106.129Checked 7 hours ago
Quantcom, a.s.
AS29208
Prostějov
49.4719, 17.1118
100% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)39msQuery time (median DNS query time - median ping) -
46.33.115.129Checked 2 hours ago
Quantcom, a.s.
AS29208
Prostějov
49.4719, 17.1118
100% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)40msQuery time (median DNS query time - median ping) -
46.33.116.137Checked 2 hours ago
Quantcom, a.s.
AS29208
Prostějov
49.4719, 17.1118
98% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)40msQuery time (median DNS query time - median ping) -
46.33.118.97Checked 3 hours ago
Quantcom, a.s.
AS29208
Prostějov
49.4719, 17.1118
100% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)40msQuery time (median DNS query time - median ping) -
85.163.181.17Checked 3 hours ago
CETIN a.s.
AS28725
Prostějov
49.4719, 17.1118
96% uptime
|16msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)87msQuery time (median DNS query time - median ping) -
77.48.26.50Checked 2 hours ago
Vodafone Czech Republic a.s.
AS16019
Rokycany
49.7427, 13.5946
100% uptime
|8msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)52msQuery time (median DNS query time - median ping) -
78.156.39.3Checked 1 hour ago
RETE internet, s.r.o.
AS43507
Roudnice nad Labem
50.4253, 14.2617
100% uptime
|15msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)57msQuery time (median DNS query time - median ping) -
31.41.204.143Checked 7 hours ago
Dragon Internet a.s.
AS15614
Skalsko
50.4271, 14.7590
97% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)64msQuery time (median DNS query time - median ping) -
5.104.16.108Checked 8 hours ago
UnArtel s.r.o.
AS198977
Slavičín
49.0880, 17.8735
100% uptime
|15msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)45msQuery time (median DNS query time - median ping) -
185.22.237.110Checked 7 hours ago
FIXNET s.r.o.
AS197046
Sopřeč
50.0936, 15.5567
100% uptime
|19msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)62msQuery time (median DNS query time - median ping) -
45.139.88.10Checked 1 hour ago
United Networks SE
AS197296
Staňkov
49.5535, 13.0698
96% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)44msQuery 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
100% uptime
|12msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)81msQuery time (median DNS query time - median ping) -
85.132.179.206Checked 8 hours ago
Ipex A.S
AS9080
Tábor
49.4144, 14.6578
100% uptime
|12msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)31msQuery time (median DNS query time - median ping) -
46.167.202.228Checked 1 hour ago
Vodafone Czech Republic a.s.
AS16019
Tachov
49.7953, 12.6336
96% uptime
|10msMedian ping from Nuremberg, Germany|71msJitter (1 standard deviation)75msQuery time (median DNS query time - median ping) -
93.99.25.151Checked 7 hours ago
Vodafone Czech Republic a.s.
AS16019
Tymákov
49.7191, 13.5098
99% uptime
|9msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)42msQuery time (median DNS query time - median ping) -
85.163.21.37Checked 1 hour ago
CETIN a.s.
AS28725
Uherský Brod
49.0251, 17.6471
96% uptime
|14msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)58msQuery time (median DNS query time - median ping) -
213.235.100.221Checked 1 hour ago
CEZNET s.r.o.
AS6740
Valašské Meziříčí
49.4718, 17.9711
98% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)44msQuery time (median DNS query time - median ping) -
91.184.248.228Checked 3 hours ago
SmartApe OU
AS62212
Veselí nad Lužnicí
49.1843, 14.6973
98% uptime
|11msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)46msQuery time (median DNS query time - median ping) -
91.184.249.63Checked 3 hours ago
SmartApe OU
AS62212
Veselí nad Lužnicí
49.1843, 14.6973
98% uptime
|11msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)42msQuery time (median DNS query time - median ping) -
91.184.250.182Checked 2 hours ago
SmartApe OU
AS62212
Veselí nad Lužnicí
49.1843, 14.6973
98% uptime
|12msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)4msQuery time (median DNS query time - median ping) -
46.255.8.3Checked 5 hours ago
ISP Alliance a.s.
AS52084
Vrchlabí
50.6270, 15.6094
100% uptime
|13msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)64msQuery time (median DNS query time - median ping) -
31.47.98.57Checked 5 hours ago
FreeTel, s.r.o.
AS8251
Vsetín
49.3387, 17.9962
100% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)43msQuery time (median DNS query time - median ping) -
46.33.96.8Checked 7 hours ago
Quantcom, a.s.
AS29208
Vyškov
49.2775, 16.9990
99% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)39msQuery time (median DNS query time - median ping) -
46.33.96.13Checked 3 hours ago
Quantcom, a.s.
AS29208
Vyškov
49.2775, 16.9990
100% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)38msQuery time (median DNS query time - median ping) -
46.33.96.50Checked 2 hours ago
Quantcom, a.s.
AS29208
Vyškov
49.2775, 16.9990
96% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)39msQuery time (median DNS query time - median ping) -
46.33.96.56Checked 43 minutes ago
Quantcom, a.s.
AS29208
Vyškov
49.2775, 16.9990
100% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)41msQuery time (median DNS query time - median ping) -
46.33.96.58Checked 4 hours ago
Quantcom, a.s.
AS29208
Vyškov
49.2775, 16.9990
100% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)39msQuery time (median DNS query time - median ping) -
46.33.99.1Checked 4 hours ago
Quantcom, a.s.
AS29208
Vyškov
49.2775, 16.9990
98% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)40msQuery time (median DNS query time - median ping) -
46.33.106.81Checked 4 hours ago
Quantcom, a.s.
AS29208
Vyškov
49.2775, 16.9990
100% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)39msQuery time (median DNS query time - median ping) -
78.111.113.182Checked 3 hours ago
ISP Alliance a.s.
AS47232
Žatec
50.3272, 13.5458
98% uptime
|24msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)138msQuery time (median DNS query time - median ping) -
78.111.116.15Checked 3 hours ago
ISP Alliance a.s.
AS47232
Žatec
50.3272, 13.5458
98% uptime
|15msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)88msQuery time (median DNS query time - median ping) -
95.82.166.252Checked 1 hour ago
NETBOX Autonomous system
AS31246
Ždánice
49.0673, 17.0275
100% uptime
|12msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)42msQuery time (median DNS query time - median ping) -
95.82.166.253Checked 6 hours ago
NETBOX Autonomous system
AS31246
Ždánice
49.0673, 17.0275
100% uptime
|12msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)41msQuery time (median DNS query time - median ping) -
46.33.96.54Checked 7 hours ago
Quantcom, a.s.
AS29208
Zelená Hora
49.3290, 17.0137
97% uptime
|14msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)40msQuery time (median DNS query time - median ping) -
82.202.6.94Checked 7 hours ago
CEZNET s.r.o.
AS6740
Zlín
49.2264, 17.6706
99% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)68msQuery time (median DNS query time - median ping) -
131.117.208.241Checked 4 hours ago
AVONET, s.r.o.
AS20723
Zlín
49.2264, 17.6706
100% uptime
|15msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)58msQuery time (median DNS query time - median ping) -
131.117.211.167Checked 8 hours ago
AVONET, s.r.o.
AS20723
Zlín
49.2264, 17.6706
99% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)41msQuery time (median DNS query time - median ping) -
217.115.244.130Checked 1 hour ago
AVONET, s.r.o.
AS20723
Zlín
49.2264, 17.6706
98% uptime
|13msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)70msQuery time (median DNS query time - median ping)