DNS Servers

Czechia 358 local DNS servers

Download list

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.

Global DNS servers

  • 80.250.11.81

    WIA spol. s.r.o.

    AS21430

    Aš

    50.2239, 12.1950

    100% uptime

    14ms
    |
    1ms
    |
    106ms
  • 85.71.248.67

    O2 Czech Republic, a.s.

    AS5610

    Benešov

    49.7816, 14.6870

    100% uptime

    10ms
    |
    1ms
    |
    77ms
  • 5.102.48.14

    ORIGINAL AS CZ-NORDICTELECOMREGIONAL

    AS42908

    Beroun

    49.9638, 14.0720

    97% uptime

    8ms
    |
    0ms
    |
    18ms
  • 5.102.53.44

    ORIGINAL AS CZ-NORDICTELECOMREGIONAL

    AS42908

    Beroun

    49.9638, 14.0720

    97% uptime

    10ms
    |
    0ms
    |
    60ms
  • 46.149.115.42

    Alf servis, s.r.o.

    AS52092

    Blansko

    49.3630, 16.6445

    100% uptime

    14ms
    |
    0ms
    |
    72ms
  • 185.201.13.76

    CEZNET s.r.o.

    AS204064

    Bor

    49.7116, 12.7752

    100% uptime

    14ms
    |
    1ms
    |
    48ms
  • 178.211.147.45

    Vodafone Czech Republic a.s.

    AS16019

    Brandýs nad Labem-Stará Boleslav

    50.1871, 14.6633

    93% uptime

    5ms
    |
    1ms
    |
    56ms
  • 178.211.147.56

    Vodafone Czech Republic a.s.

    AS16019

    Brandýs nad Labem-Stará Boleslav

    50.1871, 14.6633

    100% uptime

    5ms
    |
    0ms
    |
    66ms
  • 178.211.147.79

    Vodafone Czech Republic a.s.

    AS16019

    Brandýs nad Labem-Stará Boleslav

    50.1871, 14.6633

    100% uptime

    6ms
    |
    1ms
    |
    66ms
  • 77.240.189.204

    FASTER CZ spol. s r.o.

    AS24641

    Brno

    49.1952, 16.6080

    100% uptime

    12ms
    |
    0ms
    |
    33ms
  • 77.240.190.77

    FASTER CZ spol. s r.o.

    AS24641

    Brno

    49.1952, 16.6080

    100% uptime

    12ms
    |
    0ms
    |
    98ms
  • 81.19.10.246

    FASTER CZ spol. s r.o.

    AS24641

    Brno

    49.1952, 16.6080

    100% uptime

    11ms
    |
    0ms
    |
    57ms
  • 86.49.74.204

    Vodafone Czech Republic a.s.

    AS16019

    Brno

    49.1952, 16.6080

    100% uptime

    18ms
    |
    2ms
    |
    93ms
  • 176.74.134.138

    FASTER CZ spol. s r.o.

    AS35613

    Brno

    49.1952, 16.6080

    100% uptime

    16ms
    |
    3ms
    |
    70ms
  • 176.74.140.52

    FASTER CZ spol. s r.o.

    AS35613

    Brno

    49.1952, 16.6080

    100% uptime

    12ms
    |
    0ms
    |
    49ms
  • 176.74.141.184

    FASTER CZ spol. s r.o.

    AS35613

    Brno

    49.1952, 16.6080

    100% uptime

    12ms
    |
    0ms
    |
    56ms
  • 185.16.81.235

    Netcom Solutions s.r.o.

    AS206703

    Brno

    49.1952, 16.6080

    100% uptime

    6ms
    |
    0ms
    |
    20ms
  • 212.4.156.230

    O2 Czech Republic, a.s.

    AS12570

    Brno

    49.1952, 16.6080

    97% uptime

    13ms
    |
    0ms
    |
    64ms
  • 89.190.64.20

    N_SYS s.r.o.

    AS41088

    Broumov

    50.5857, 16.3318

    97% uptime

    8ms
    |
    0ms
    |
    22ms
  • 89.190.64.114

    "N_SYS s.r.o."

    AS41088

    Broumov

    50.5857, 16.3318

    100% uptime

    8ms
    |
    1ms
    |
    19ms
  • 89.190.64.115

    N_SYS s.r.o.

    AS41088

    Broumov

    50.5857, 16.3318

    100% uptime

    10ms
    |
    1ms
    |
    20ms
  • 89.190.64.116

    "N_SYS s.r.o."

    AS41088

    Broumov

    50.5857, 16.3318

    100% uptime

    10ms
    |
    1ms
    |
    18ms
  • 89.190.64.117

    "N_SYS s.r.o."

    AS41088

    Broumov

    50.5857, 16.3318

    100% uptime

    8ms
    |
    1ms
    |
    19ms
  • 81.162.206.18

    Martin Vicenik

    AS34955

    Brumov-Bylnice

    49.0918, 18.0224

    100% uptime

    14ms
    |
    0ms
    |
    70ms
  • 82.144.156.82

    CEZNET s.r.o.

    AS49101

    Česká Třebová

    49.9044, 16.4441

    100% uptime

    16ms
    |
    0ms
    |
    81ms
  • 176.62.237.38

    IP4ISP z.s.p.o

    AS49985

    České Budějovice

    48.9745, 14.4743

    100% uptime

    14ms
    |
    0ms
    |
    43ms
  • 176.62.237.50

    IP4ISP z.s.p.o

    AS49985

    České Budějovice

    48.9745, 14.4743

    97% uptime

    15ms
    |
    0ms
    |
    98ms
  • 176.62.237.56

    IP4ISP z.s.p.o

    AS49985

    České Budějovice

    48.9745, 14.4743

    97% uptime

    14ms
    |
    1ms
    |
    90ms
  • 176.62.237.75

    IP4ISP z.s.p.o

    AS49985

    České Budějovice

    48.9745, 14.4743

    100% uptime

    17ms
    |
    1ms
    |
    95ms
  • 188.120.196.62

    IP4ISP z.s.p.o

    AS49985

    České Budějovice

    48.9745, 14.4743

    100% uptime

    11ms
    |
    0ms
    |
    65ms
  • 85.163.60.197

    CETIN a.s.

    AS28725

    Český Těšín

    49.7461, 18.6261

    100% uptime

    18ms
    |
    0ms
    |
    93ms
  • 46.13.84.85

    T-Mobile Czech Republic a.s.

    AS13036

    Chlumčany

    50.3349, 13.8432

    100% uptime

    13ms
    |
    0ms
    |
    65ms
  • 46.29.225.156

    ISP Alliance a.s.

    AS47232

    Chomutov

    50.4605, 13.4178

    100% uptime

    15ms
    |
    2ms
    |
    103ms
  • 78.111.112.106

    ISP Alliance a.s.

    AS47232

    Chomutov

    50.4605, 13.4178

    100% uptime

    25ms
    |
    7ms
    |
    109ms
  • 91.192.32.43

    ISP Alliance a.s.

    AS210712

    Chomutov

    50.4605, 13.4178

    97% uptime

    17ms
    |
    1ms
    |
    50ms
  • 109.235.7.134

    ISP Alliance a.s.

    AS210712

    Chomutov

    50.4605, 13.4178

    93% uptime

    19ms
    |
    2ms
    |
    99ms
  • 62.168.2.85

    T-Mobile Czech Republic a.s.

    AS13036

    Děčín

    50.7822, 14.2148

    100% uptime

    10ms
    |
    0ms
    |
    27ms
  • 77.95.46.164

    JAW.cz s.r.o.

    AS43070

    Děčín

    50.7822, 14.2148

    91% uptime

    12ms
    |
    0ms
    |
    96ms
  • 89.187.194.66

    JAW.cz s.r.o.

    AS43070

    Děčín

    50.7822, 14.2148

    100% uptime

    13ms
    |
    0ms
    |
    63ms
  • 193.85.250.90

    T-Mobile Czech Republic a.s.

    AS13036

    Děčín

    50.7822, 14.2148

    100% uptime

    12ms
    |
    3ms
    |
    59ms
  • 85.163.23.5

    CETIN a.s.

    AS28725

    Doksy

    50.5647, 14.6555

    100% uptime

    14ms
    |
    1ms
    |
    56ms
  • 46.229.120.98

    Alberon Letohrad s.r.o

    AS56450

    Dolní Dobrouč

    49.9927, 16.4977

    100% uptime

    22ms
    |
    5ms
    |
    68ms
  • 85.163.24.233

    CETIN a.s.

    AS28725

    Dvůr Králové nad Labem

    50.4317, 15.8140

    100% uptime

    14ms
    |
    0ms
    |
    48ms
  • 85.163.24.237

    CETIN a.s.

    AS28725

    Dvůr Králové nad Labem

    50.4317, 15.8140

    100% uptime

    14ms
    |
    0ms
    |
    44ms
  • 80.250.25.254

    WIA spol. s.r.o.

    AS21430

    Františkovy Lázně

    50.1203, 12.3517

    97% uptime

    14ms
    |
    1ms
    |
    80ms
  • 80.82.154.50

    CoProSys a.s.

    AS39906

    Frenštát pod Radhoštěm

    49.5483, 18.2108

    91% uptime

    22ms
    |
    2ms
    |
    152ms
  • 89.24.8.166

    T-Mobile Czech Republic a.s.

    AS13036

    Frýdek-Místek

    49.6833, 18.3500

    100% uptime

    50ms
    |
    34ms
    |
    122ms
  • 89.24.9.24

    T-Mobile Czech Republic a.s.

    AS13036

    Frýdek-Místek

    49.6833, 18.3500

    93% uptime

    74ms
    |
    69ms
    |
    170ms
  • 188.175.41.219

    O2 Czech Republic, a.s.

    AS16246

    Frýdek-Místek

    49.6833, 18.3500

    100% uptime

    17ms
    |
    0ms
    |
    70ms
  • 188.175.146.253

    O2 Czech Republic, a.s.

    AS16246

    Frýdlant nad Ostravicí

    49.5928, 18.3597

    100% uptime

    17ms
    |
    0ms
    |
    60ms
  • 46.174.152.2

    mjanik.net s.r.o.

    AS52154

    Hlučín

    49.8980, 18.1920

    100% uptime

    11ms
    |
    0ms
    |
    52ms
  • 158.255.38.105

    Host-Telecom.com s.r.o.

    AS51248

    Hodonín

    48.8489, 17.1324

    97% uptime

    10ms
    |
    0ms
    |
    26ms
  • 188.127.246.148

    SmartApe OU

    AS62212

    Hodonín

    48.8489, 17.1324

    96% uptime

    11ms
    |
    0ms
    |
    57ms
  • 188.127.247.41

    SmartApe OU

    AS62212

    Hodonín

    48.8489, 17.1324

    97% uptime

    11ms
    |
    1ms
    |
    64ms
  • 185.60.107.188

    HelaPC s.r.o.

    AS197879

    Hořice

    50.3661, 15.6318

    97% uptime

    14ms
    |
    1ms
    |
    59ms
  • 193.85.26.94

    T-Mobile Czech Republic a.s.

    AS13036

    Hrabůvka

    49.7976, 18.2374

    93% uptime

    13ms
    |
    1ms
    |
    47ms
  • 91.245.9.4

    SPCom s.r.o.

    AS204383

    Hradec Králové

    50.2092, 15.8328

    100% uptime

    12ms
    |
    1ms
    |
    92ms
  • 185.60.106.145

    HelaPC s.r.o.

    AS197879

    Hradec Králové

    50.2092, 15.8328

    100% uptime

    17ms
    |
    3ms
    |
    146ms
  • 185.60.106.163

    HelaPC s.r.o.

    AS197879

    Hradec Králové

    50.2092, 15.8328

    97% uptime

    15ms
    |
    2ms
    |
    54ms
  • 188.122.213.58

    CEZNET s.r.o.

    AS57728

    Hradec Králové

    50.2092, 15.8328

    100% uptime

    12ms
    |
    0ms
    |
    46ms
  • 85.163.10.38

    CETIN a.s.

    AS28725

    Hrdlořezy

    50.4514, 14.8754

    91% uptime

    14ms
    |
    0ms
    |
    73ms
  • 89.190.51.90

    O2 Czech Republic, a.s.

    AS12570

    Hrušovany nad Jevišovkou

    48.8299, 16.4027

    100% uptime

    22ms
    |
    12ms
    |
    118ms
  • 89.190.51.94

    O2 Czech Republic, a.s.

    AS12570

    Hrušovany nad Jevišovkou

    48.8299, 16.4027

    82% uptime

    14ms
    |
    2ms
    |
    98ms
  • 89.190.51.135

    O2 Czech Republic, a.s.

    AS12570

    Hrušovany nad Jevišovkou

    48.8299, 16.4027

    100% uptime

    14ms
    |
    0ms
    |
    64ms
  • 89.190.51.228

    O2 Czech Republic, a.s.

    AS12570

    Hrušovany nad Jevišovkou

    48.8299, 16.4027

    91% uptime

    13ms
    |
    0ms
    |
    102ms
  • 85.119.89.116

    STARNET, s.r.o.

    AS44489

    Jablonec nad Nisou

    50.7243, 15.1711

    96% uptime

    7ms
    |
    0ms
    |
    59ms
  • 78.110.213.249

    Dragon Internet a.s.

    AS15614

    Jenišovice

    50.6277, 15.1365

    91% uptime

    13ms
    |
    1ms
    |
    83ms
  • 185.67.191.85

    CEZNET s.r.o.

    AS201654

    Jeseník

    50.2294, 17.2046

    100% uptime

    17ms
    |
    0ms
    |
    83ms
  • 93.89.149.54

    Edera Group a.s.

    AS42306

    Jičín

    50.4372, 15.3516

    100% uptime

    16ms
    |
    0ms
    |
    52ms
  • 193.19.176.3

    Savvy s.r.o.

    AS44770

    Jičín

    50.4372, 15.3516

    97% uptime

    13ms
    |
    0ms
    |
    38ms
  • 213.175.61.150

    Quantcom, a.s.

    AS29208

    Jičín

    50.4372, 15.3516

    100% uptime

    17ms
    |
    1ms
    |
    90ms
  • 176.62.235.18

    IP4ISP z.s.p.o

    AS49985

    Jindřichův Hradec

    49.1440, 15.0030

    100% uptime

    10ms
    |
    0ms
    |
    38ms
  • 176.62.235.19

    IP4ISP z.s.p.o

    AS49985

    Jindřichův Hradec

    49.1440, 15.0030

    100% uptime

    10ms
    |
    0ms
    |
    38ms
  • 77.104.216.197

    ISP Alliance a.s.

    AS201476

    Karlovy Vary

    50.2327, 12.8712

    100% uptime

    16ms
    |
    1ms
    |
    67ms
  • 89.203.205.239

    CD-Telematika a.s.

    AS25512

    Karlovy Vary

    50.2327, 12.8712

    91% uptime

    18ms
    |
    3ms
    |
    107ms
  • 212.69.128.137

    CC INTERNET s.r.o.

    AS202921

    Karlovy Vary

    50.2327, 12.8712

    97% uptime

    15ms
    |
    1ms
    |
    48ms
  • 89.24.233.90

    T-Mobile Czech Republic a.s.

    AS13036

    Kladno

    50.1473, 14.1029

    97% uptime

    16ms
    |
    1ms
    |
    88ms
  • 188.75.154.107

    PODA a.s.

    AS196735

    Kolín

    50.0281, 15.1998

    93% uptime

    13ms
    |
    1ms
    |
    69ms
  • 213.108.160.126

    PODA a.s.

    AS200114

    Kolín

    50.0281, 15.1998

    100% uptime

    17ms
    |
    2ms
    |
    72ms
  • 93.99.206.1

    Vodafone Czech Republic a.s.

    AS16019

    Kralupy nad Vltavou

    50.2411, 14.3115

    100% uptime

    5ms
    |
    0ms
    |
    32ms
  • 93.99.206.129

    Vodafone Czech Republic a.s.

    AS16019

    Kralupy nad Vltavou

    50.2411, 14.3115

    97% uptime

    5ms
    |
    0ms
    |
    33ms
  • 93.99.217.104

    Vodafone Czech Republic a.s.

    AS16019

    Kralupy nad Vltavou

    50.2411, 14.3115

    100% uptime

    6ms
    |
    0ms
    |
    37ms
  • 85.163.31.92

    CETIN a.s.

    AS28725

    Kraslice

    50.3237, 12.5175

    82% uptime

    17ms
    |
    1ms
    |
    108ms
  • 80.92.250.181

    LAM plus s.r.o.

    AS197029

    Krňany

    49.8448, 14.4774

    97% uptime

    14ms
    |
    1ms
    |
    95ms
  • 85.13.73.27

    CD-Telematika a.s.

    AS25512

    Kuřim

    49.2985, 16.5314

    100% uptime

    16ms
    |
    3ms
    |
    117ms
  • 46.135.156.197

    Vodafone Czech Republic a.s.

    AS16019

    Liberec

    50.7671, 15.0562

    100% uptime

    27ms
    |
    4ms
    |
    131ms
  • 77.104.250.161

    CoProSys a.s.

    AS39906

    Liberec

    50.7671, 15.0562

    100% uptime

    19ms
    |
    2ms
    |
    122ms
  • 77.104.251.121

    CoProSys a.s.

    AS39906

    Liberec

    50.7671, 15.0562

    100% uptime

    13ms
    |
    0ms
    |
    68ms
  • 77.104.251.214

    CoProSys a.s.

    AS39906

    Liberec

    50.7671, 15.0562

    100% uptime

    12ms
    |
    0ms
    |
    75ms
  • 94.138.98.98

    CoProSys a.s.

    AS39906

    Liberec

    50.7671, 15.0562

    100% uptime

    12ms
    |
    1ms
    |
    43ms
  • 176.62.235.30

    IP4ISP z.s.p.o

    AS49985

    Lipno nad Vltavou

    48.6393, 14.2293

    100% uptime

    10ms
    |
    0ms
    |
    39ms
  • 93.91.156.84

    ISP Alliance a.s.

    AS210712

    Litvínov

    50.6042, 13.6181

    100% uptime

    11ms
    |
    0ms
    |
    25ms
  • 93.91.144.70

    ISP Alliance a.s.

    AS210712

    Louny

    50.3570, 13.7967

    100% uptime

    10ms
    |
    1ms
    |
    21ms
  • 5.59.9.200

    BEZVANET s.r.o.

    AS196952

    Mladá Boleslav

    50.4113, 14.9032

    100% uptime

    12ms
    |
    0ms
    |
    36ms
  • 85.163.66.133

    CETIN a.s.

    AS28725

    Mladá Boleslav

    50.4113, 14.9032

    97% uptime

    10ms
    |
    1ms
    |
    50ms
  • 85.163.72.197

    CETIN a.s.

    AS28725

    Mladá Boleslav

    50.4113, 14.9032

    100% uptime

    15ms
    |
    1ms
    |
    53ms
  • 85.163.128.123

    CETIN a.s.

    AS28725

    Mladá Boleslav

    50.4113, 14.9032

    100% uptime

    16ms
    |
    1ms
    |
    98ms
  • 213.168.181.169

    Dragon Internet a.s.

    AS15614

    Mladá Boleslav

    50.4113, 14.9032

    97% uptime

    11ms
    |
    0ms
    |
    36ms
  • 213.168.184.11

    Dragon Internet a.s.

    AS15614

    Mladá Boleslav

    50.4113, 14.9032

    97% uptime

    11ms
    |
    0ms
    |
    36ms
  • 213.168.190.24

    Dragon Internet a.s.

    AS15614

    Mladá Boleslav

    50.4113, 14.9032

    100% uptime

    12ms
    |
    0ms
    |
    41ms