DNS Servers

Czechia 304 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

  • 176.102.144.62

    ORIGINAL AS CZ-NORDICTELECOMREGIONAL

    AS42908

    Pňovice

    49.7208, 17.1602

    98% uptime

    8ms
    |
    3ms
    |
    20ms
  • 80.188.4.133

    O2 Czech Republic, a.s.

    AS5610

    Podolí

    50.0547, 14.4422

    92% uptime

    13ms
    |
    2ms
    |
    22ms
  • 80.188.10.50

    O2 Czech Republic, a.s.

    AS5610

    Podolí

    50.0547, 14.4422

    100% uptime

    20ms
    |
    3ms
    |
    74ms
  • 176.102.128.2

    ORIGINAL AS CZ-NORDICTELECOMREGIONAL

    AS42908

    Podolí

    50.0547, 14.4422

    100% uptime

    13ms
    |
    2ms
    |
    21ms
  • 176.102.128.3

    ORIGINAL AS CZ-NORDICTELECOMREGIONAL

    AS42908

    Podolí

    50.0547, 14.4422

    100% uptime

    13ms
    |
    3ms
    |
    21ms
  • 85.163.98.156

    CETIN a.s.

    AS28725

    Polná

    49.4870, 15.7188

    97% uptime

    12ms
    |
    2ms
    |
    59ms
  • 85.163.98.172

    CETIN a.s.

    AS28725

    Polná

    49.4870, 15.7188

    100% uptime

    16ms
    |
    2ms
    |
    90ms
  • 31.47.105.21

    FreeTel, s.r.o.

    AS8251

    Prague

    50.0475, 14.4831

    100% uptime

    15ms
    |
    3ms
    |
    51ms
  • 37.205.8.145

    MasterDC s.r.o.

    AS24971

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    1ms
    |
    21ms
  • 37.205.9.7

    MasterDC s.r.o.

    AS24971

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    1ms
    |
    13ms
  • 38.45.80.107

    Coolhousing s.r.o.

    AS35592

    Prague

    50.0880, 14.4208

    100% uptime

    13ms
    |
    3ms
    |
    46ms
  • 45.84.164.49

    INTERCONNECT s.r.o.

    AS208805

    Prague

    50.0880, 14.4208

    100% uptime

    12ms
    |
    0ms
    |
    48ms
  • 46.13.45.215

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    100% uptime

    24ms
    |
    2ms
    |
    56ms
  • 46.13.223.26

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    92% uptime

    18ms
    |
    0ms
    |
    62ms
  • 46.13.244.143

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    83% uptime

    21ms
    |
    3ms
    |
    44ms
  • 46.28.70.121

    GREEN FLOID LLC

    AS204957

    Prague

    50.0880, 14.4208

    92% uptime

    11ms
    |
    1ms
    |
    49ms
  • 46.47.143.202

    PODA a.s.

    AS30764

    Prague

    50.0880, 14.4208

    98% uptime

    19ms
    |
    1ms
    |
    48ms
  • 46.234.101.153

    SH.cz s.r.o.

    AS39392

    Prague

    50.0880, 14.4208

    100% uptime

    12ms
    |
    1ms
    |
    7ms
  • 46.234.101.154

    SH.cz s.r.o.

    AS39392

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    1ms
    |
    15ms
  • 62.84.148.254

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    96% uptime

    18ms
    |
    0ms
    |
    26ms
  • 77.48.28.202

    Vodafone Czech Republic a.s.

    AS16019

    Prague

    50.0880, 14.4208

    100% uptime

    5ms
    |
    0ms
    |
    43ms
  • 77.87.242.127

    SPOJE.NET s.r.o.

    AS51400

    Prague

    50.0880, 14.4208

    100% uptime

    14ms
    |
    2ms
    |
    34ms
  • 78.80.42.231

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    98% uptime

    7ms
    |
    0ms
    |
    29ms
  • 78.80.92.48

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    100% uptime

    8ms
    |
    1ms
    |
    10ms
  • 78.80.145.103

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    96% uptime

    10ms
    |
    0ms
    |
    63ms
  • 78.80.157.35

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    98% uptime

    5ms
    |
    0ms
    |
    45ms
  • 78.80.184.142

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    100% uptime

    7ms
    |
    0ms
    |
    64ms
  • 78.80.232.219

    T-Mobile Czech Republic a.s.

    AS13036

    Prague

    50.0880, 14.4208

    83% uptime

    11ms
    |
    0ms
    |
    76ms
  • 79.127.204.67

    Datacamp Limited

    AS60068

    Prague

    50.0880, 14.4208

    100% uptime

    9ms
    |
    0ms
    |
    23ms
  • 80.87.176.1

    ORIGINAL AS CZ-NORDICTELECOMREGIONAL

    AS42908

    Prague

    50.0880, 14.4208

    98% uptime

    13ms
    |
    3ms
    |
    20ms
  • 80.87.176.5

    ORIGINAL AS CZ-NORDICTELECOMREGIONAL

    AS42908

    Prague

    50.0880, 14.4208

    100% uptime

    13ms
    |
    2ms
    |
    22ms
  • 80.92.244.47

    LAM plus s.r.o.

    AS197029

    Prague

    50.0880, 14.4208

    100% uptime

    18ms
    |
    13ms
    |
    124ms
  • 80.95.106.122

    Vodafone Czech Republic a.s.

    AS16019

    Prague

    50.0880, 14.4208

    100% uptime

    8ms
    |
    0ms
    |
    54ms
  • 80.95.106.187

    Vodafone Czech Republic a.s.

    AS16019

    Prague

    50.0880, 14.4208

    100% uptime

    4ms
    |
    0ms
    |
    18ms
  • 80.95.116.210

    Vodafone Czech Republic a.s.

    AS16019

    Prague

    50.0880, 14.4208

    100% uptime

    6ms
    |
    0ms
    |
    42ms
  • 80.188.40.154

    O2 Czech Republic, a.s.

    AS5610

    Prague

    50.0880, 14.4208

    100% uptime

    16ms
    |
    2ms
    |
    44ms
  • 80.188.228.174

    O2 Czech Republic, a.s.

    AS5610

    Prague

    50.0880, 14.4208

    98% uptime

    18ms
    |
    3ms
    |
    82ms
  • 80.250.11.81

    WIA spol. s.r.o.

    AS21430

    Prague

    50.0880, 14.4208

    100% uptime

    16ms
    |
    1ms
    |
    82ms
  • 81.92.155.117

    CoProSys a.s.

    AS39906

    Prague

    50.0880, 14.4208

    100% uptime

    15ms
    |
    1ms
    |
    66ms
  • 82.113.47.82

    Quantcom, a.s.

    AS29208

    Prague

    50.0696, 14.3775

    100% uptime

    10ms
    |
    0ms
    |
    40ms
  • 84.19.81.112

    Eri Internet s.r.o.

    AS33943

    Prague

    50.0880, 14.4208

    100% uptime

    21ms
    |
    1ms
    |
    74ms
  • 84.242.98.250

    Vodafone Czech Republic a.s.

    AS16019

    Prague

    50.0880, 14.4208

    98% uptime

    18ms
    |
    2ms
    |
    64ms
  • 85.132.168.52

    Ipex A.S

    AS9080

    Prague

    50.0880, 14.4208

    97% uptime

    12ms
    |
    3ms
    |
    28ms
  • 85.132.179.206

    Ipex A.S

    AS9080

    Prague

    50.0880, 14.4208

    100% uptime

    12ms
    |
    0ms
    |
    31ms
  • 85.132.186.10

    NGN CZ s.r.o.

    AS215704

    Prague

    50.0880, 14.4208

    97% uptime

    32ms
    |
    36ms
    |
    135ms
  • 85.132.187.24

    NGN CZ s.r.o.

    AS215704

    Prague

    50.0880, 14.4208

    100% uptime

    120ms
    |
    66ms
    |
    198ms
  • 85.132.187.35

    NGN CZ s.r.o.

    AS215704

    Prague

    50.0880, 14.4208

    98% uptime

    99ms
    |
    74ms
    |
    244ms
  • 85.132.187.36

    NGN CZ s.r.o.

    AS215704

    Prague

    50.0880, 14.4208

    92% uptime

    197ms
    |
    83ms
    |
    178ms
  • 85.209.124.109

    WIA spol. s.r.o.

    AS21430

    Prague

    50.0880, 14.4208

    100% uptime

    14ms
    |
    4ms
    |
    88ms
  • 85.239.229.217

    WIA spol. s.r.o.

    AS21430

    Prague

    50.0880, 14.4208

    97% uptime

    13ms
    |
    1ms
    |
    34ms
  • 86.54.82.239

    BrainStorm Network, Inc

    AS136258

    Prague

    50.0880, 14.4208

    100% uptime

    13ms
    |
    3ms
    |
    32ms
  • 88.86.124.7

    SH.cz s.r.o.

    AS39392

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    0ms
    |
    22ms
  • 88.208.93.22

    Quantcom, a.s.

    AS29208

    Prague

    50.0880, 14.4208

    98% uptime

    10ms
    |
    0ms
    |
    30ms
  • 89.187.196.205

    JAW.cz s.r.o.

    AS43070

    Prague

    50.0880, 14.4208

    100% uptime

    12ms
    |
    0ms
    |
    35ms
  • 89.187.196.207

    JAW.cz s.r.o.

    AS43070

    Prague

    50.0880, 14.4208

    92% uptime

    14ms
    |
    1ms
    |
    50ms
  • 89.203.150.13

    CD-Telematika a.s.

    AS25512

    Prague

    50.0880, 14.4208

    92% uptime

    17ms
    |
    2ms
    |
    67ms
  • 89.203.195.8

    CD-Telematika a.s.

    AS25512

    Prague

    50.0880, 14.4208

    100% uptime

    17ms
    |
    3ms
    |
    278ms
  • 90.182.204.78

    O2 Czech Republic, a.s.

    AS5610

    Prague

    50.0880, 14.4208

    98% uptime

    13ms
    |
    3ms
    |
    32ms
  • 90.182.220.40

    O2 Czech Republic, a.s.

    AS5610

    Prague

    50.0880, 14.4208

    100% uptime

    13ms
    |
    3ms
    |
    23ms
  • 90.182.220.50

    O2 Czech Republic, a.s.

    AS5610

    Prague

    50.0880, 14.4208

    100% uptime

    13ms
    |
    3ms
    |
    24ms
  • 90.182.220.60

    O2 Czech Republic, a.s.

    AS5610

    Prague

    50.0880, 14.4208

    100% uptime

    13ms
    |
    2ms
    |
    24ms
  • 90.183.19.250

    O2 Czech Republic, a.s.

    AS5610

    Prague

    50.0880, 14.4208

    100% uptime

    19ms
    |
    3ms
    |
    50ms
  • 93.89.149.54

    Edera Group a.s.

    AS42306

    Prague

    50.0880, 14.4208

    98% uptime

    16ms
    |
    0ms
    |
    49ms
  • 93.91.144.70

    ISP Alliance a.s.

    AS210712

    Prague

    50.0880, 14.4208

    100% uptime

    10ms
    |
    0ms
    |
    21ms
  • 93.99.2.41

    Vodafone Czech Republic a.s.

    AS16019

    Prague

    50.0880, 14.4208

    100% uptime

    5ms
    |
    0ms
    |
    339ms
  • 93.185.108.6

    VSHosting s.r.o.

    AS43541

    Prague

    50.0880, 14.4208

    100% uptime

    7ms
    |
    3ms
    |
    36ms
  • 93.190.52.51

    Web4ce, s.r.o.

    AS47317

    Prague

    50.0880, 14.4208

    98% uptime

    4ms
    |
    0ms
    |
    43ms
  • 94.113.245.45

    Vodafone Czech Republic a.s.

    AS16019

    Prague

    50.0880, 14.4208

    100% uptime

    5ms
    |
    0ms
    |
    17ms
  • 94.113.249.171

    Vodafone Czech Republic a.s.

    AS16019

    Prague

    50.0880, 14.4208

    92% uptime

    5ms
    |
    0ms
    |
    44ms
  • 94.143.174.8

    O2 Czech Republic, a.s.

    AS29321

    Prague

    50.0880, 14.4208

    97% uptime

    14ms
    |
    3ms
    |
    35ms
  • 94.230.144.245

    AIRWAYNET, a.s.

    AS48661

    Prague

    50.0880, 14.4208

    100% uptime

    13ms
    |
    2ms
    |
    42ms
  • 95.168.195.130

    SH.cz s.r.o.

    AS39392

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    1ms
    |
    17ms
  • 95.168.218.173

    SH.cz s.r.o.

    AS39392

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    1ms
    |
    22ms
  • 128.0.188.166

    PODA a.s.

    AS30764

    Prague

    50.0880, 14.4208

    98% uptime

    20ms
    |
    0ms
    |
    46ms
  • 176.62.235.18

    IP4ISP z.s.p.o

    AS49985

    Prague

    50.0880, 14.4208

    100% uptime

    15ms
    |
    3ms
    |
    37ms
  • 176.102.65.197

    SecurityNet.cz s.r.o.

    AS42422

    Prague

    50.0880, 14.4208

    100% uptime

    16ms
    |
    3ms
    |
    21ms
  • 176.102.65.245

    SecurityNet.cz s.r.o.

    AS42422

    Prague

    50.0880, 14.4208

    98% uptime

    11ms
    |
    3ms
    |
    83ms
  • 176.118.170.135

    Netcore services s.r.o.

    AS209810

    Prague

    50.0880, 14.4208

    100% uptime

    15ms
    |
    2ms
    |
    72ms
  • 178.17.7.160

    UVT Internet s.r.o.

    AS50825

    Prague

    50.0880, 14.4208

    100% uptime

    13ms
    |
    3ms
    |
    42ms
  • 178.17.10.33

    UVT Internet s.r.o.

    AS50825

    Prague

    50.0880, 14.4208

    100% uptime

    20ms
    |
    3ms
    |
    42ms
  • 178.21.187.158

    TFnet s.r.o.

    AS202895

    Prague

    50.0880, 14.4208

    100% uptime

    15ms
    |
    0ms
    |
    52ms
  • 178.72.254.186

    O2 Czech Republic, a.s.

    AS41046

    Prague

    50.0880, 14.4208

    100% uptime

    19ms
    |
    3ms
    |
    77ms
  • 178.238.45.88

    MasterDC s.r.o.

    AS24971

    Prague

    50.0880, 14.4208

    100% uptime

    9ms
    |
    1ms
    |
    38ms
  • 185.22.237.110

    FIXNET s.r.o.

    AS197046

    Prague

    50.0880, 14.4208

    100% uptime

    22ms
    |
    1ms
    |
    65ms
  • 185.43.135.1

    CZ.NIC, z.s.p.o.

    AS20701

    Prague

    50.0866, 14.4799

    96% uptime

    7ms
    |
    3ms
    |
    50ms
  • 185.73.108.61

    ISP Alliance a.s.

    AS201476

    Prague

    50.0880, 14.4208

    100% uptime

    20ms
    |
    4ms
    |
    105ms
  • 185.113.28.28

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    0ms
    |
    41ms
  • 185.113.28.128

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    98% uptime

    11ms
    |
    1ms
    |
    42ms
  • 185.113.28.148

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    1ms
    |
    40ms
  • 185.113.29.4

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    98% uptime

    10ms
    |
    0ms
    |
    14ms
  • 185.113.29.9

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    100% uptime

    10ms
    |
    0ms
    |
    41ms
  • 185.113.29.10

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    98% uptime

    10ms
    |
    1ms
    |
    48ms
  • 185.113.29.12

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    100% uptime

    10ms
    |
    0ms
    |
    40ms
  • 185.113.29.19

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    1ms
    |
    38ms
  • 185.113.29.27

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    1ms
    |
    22ms
  • 185.113.29.39

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    0ms
    |
    39ms
  • 185.113.29.40

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    100% uptime

    11ms
    |
    1ms
    |
    37ms
  • 185.113.29.49

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    98% uptime

    10ms
    |
    1ms
    |
    41ms
  • 185.113.29.50

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    98% uptime

    10ms
    |
    0ms
    |
    48ms
  • 185.113.29.51

    AdGuard Software Limited

    AS212772

    Prague

    50.0880, 14.4208

    98% uptime

    10ms
    |
    0ms
    |
    43ms