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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201.202.204.77Checked 3 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
Alajuela
10.0172, -84.2127
100% uptime
|193msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)506msQuery time (median DNS query time - median ping) -
177.93.17.177Checked 4 hours ago
Telecable Economico S.A.
AS52263
Cartago
9.8637, -83.9195
96% uptime
|173msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)420msQuery time (median DNS query time - median ping) -
201.199.245.119Checked 4 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
Cartago
9.8637, -83.9195
96% uptime
|190msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)512msQuery time (median DNS query time - median ping) -
177.93.17.35Checked 1 hour ago
Telecable Economico S.A.
AS52263
Guadalupe
9.9481, -84.0567
96% uptime
|176msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)297msQuery time (median DNS query time - median ping) -
190.211.101.158Checked 29 minutes ago
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
AS262145
La Virgen
10.4017, -84.1335
100% uptime
|195msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)443msQuery time (median DNS query time - median ping) -
201.207.40.58Checked 3 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
ParaÃso
9.8385, -83.8666
98% uptime
|185msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)496msQuery time (median DNS query time - median ping) -
168.228.49.110Checked 5 hours ago
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
AS262145
Quesada
10.3266, -84.4320
100% uptime
|182msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)443msQuery time (median DNS query time - median ping) -
168.228.51.128Checked 5 hours ago
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
AS262145
Quesada
10.3266, -84.4320
98% uptime
|178msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)471msQuery time (median DNS query time - median ping) -
168.228.51.230Checked 2 hours ago
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
AS262145
Quesada
10.3266, -84.4320
98% uptime
|178msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)439msQuery time (median DNS query time - median ping) -
186.96.89.130Checked 6 hours ago
Telefonica de Costa Rica TC, SA
AS262202
San Isidro
9.3674, -83.6971
100% uptime
|188msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)322msQuery time (median DNS query time - median ping) -
186.179.68.197Checked 3 hours ago
Ufinet Costa Rica, S. A.
AS61462
San Isidro
9.3674, -83.6971
98% uptime
|177msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)281msQuery time (median DNS query time - median ping) -
190.10.8.50Checked 6 hours ago
RADIOGRAFICA COSTARRICENSE
AS3790
San Isidro
9.3674, -83.6971
98% uptime
|163msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)297msQuery time (median DNS query time - median ping) -
190.124.248.232Checked 3 hours ago
NAVEGALO S.A.
AS28110
San Isidro
9.3674, -83.6971
98% uptime
|172msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)418msQuery time (median DNS query time - median ping) -
190.171.100.166Checked 2 hours ago
Telecable Economico S.A.
AS52263
San Isidro
9.3674, -83.6971
98% uptime
|179msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)439msQuery time (median DNS query time - median ping) -
190.171.119.120Checked 4 hours ago
Telecable Economico S.A.
AS52263
San Isidro
9.3674, -83.6971
96% uptime
|171msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)216msQuery time (median DNS query time - median ping) -
45.65.189.249Checked 2 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San José
9.9184, -84.1025
98% uptime
|183msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)213msQuery time (median DNS query time - median ping) -
170.84.108.36Checked 6 hours ago
GCI SERVICE PROVIDER S.A.
AS263248
San José
9.9339, -84.0849
98% uptime
|188msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)426msQuery time (median DNS query time - median ping) -
170.84.108.40Checked 5 hours ago
GCI SERVICE PROVIDER S.A.
AS263248
San José
9.9339, -84.0849
100% uptime
|177msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)437msQuery time (median DNS query time - median ping) -
170.84.108.60Checked 3 hours ago
GCI SERVICE PROVIDER S.A.
AS263248
San José
9.9339, -84.0849
98% uptime
|179msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)315msQuery time (median DNS query time - median ping) -
177.93.31.10Checked 58 minutes ago
Telecable Economico S.A.
AS52263
San José
9.9339, -84.0849
99% uptime
|174msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)263msQuery time (median DNS query time - median ping) -
179.189.223.197Checked 7 hours ago
COLUMBUS NETWORKS DE COSTA RICA SOCIEDAD DE RESPONSABILIDAD LIMITADA
AS263785
San José
9.9339, -84.0849
100% uptime
|181msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)315msQuery time (median DNS query time - median ping) -
186.176.7.182Checked 5 hours ago
MILLICOM CABLE COSTA RICA S.A.
AS262197
San José
9.9339, -84.0849
98% uptime
|175msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)412msQuery time (median DNS query time - median ping) -
186.176.214.90Checked 7 hours ago
MILLICOM CABLE COSTA RICA S.A.
AS262197
San José
9.9339, -84.0849
100% uptime
|172msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)284msQuery time (median DNS query time - median ping) -
201.203.187.161Checked 4 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
San José
9.9339, -84.0849
100% uptime
|193msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)510msQuery time (median DNS query time - median ping) -
38.210.160.220Checked 3 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San Rafael
9.9283, -84.1354
98% uptime
|168msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)417msQuery time (median DNS query time - median ping) -
186.26.114.107Checked 5 hours ago
TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA
AS14754
San Rafael
9.9283, -84.1354
100% uptime
|177msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)139msQuery time (median DNS query time - median ping) -
186.176.7.174Checked 5 hours ago
MILLICOM CABLE COSTA RICA S.A.
AS262197
San Rafael
9.9283, -84.1354
96% uptime
|169msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)404msQuery time (median DNS query time - median ping) -
190.149.152.126Checked 4 hours ago
TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA
AS14754
San Rafael
9.9283, -84.1354
100% uptime
|173msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)352msQuery time (median DNS query time - median ping) -
186.15.243.110Checked 2 hours ago
Cable Tica
AS52228
Santiago
9.8464, -84.3143
98% uptime
|180msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)421msQuery time (median DNS query time - median ping) -
190.113.122.236Checked 5 hours ago
Telecable Economico S.A.
AS52263
Sardinal
10.5167, -85.6475
100% uptime
|178msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)438msQuery time (median DNS query time - median ping)