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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177.93.12.122Checked 1 hour ago
Telecable Economico S.A.
AS52263
Alajuela
10.0172, -84.2127
99% uptime
|157msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)130msQuery time (median DNS query time - median ping) -
186.176.7.174Checked 2 hours ago
MILLICOM CABLE COSTA RICA S.A.
AS262197
Barva
10.0202, -84.1245
98% uptime
|166msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)392msQuery time (median DNS query time - median ping) -
201.196.88.14Checked 4 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
Capellades
9.9216, -83.7853
100% uptime
|179msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)448msQuery time (median DNS query time - median ping) -
186.177.94.230Checked 6 hours ago
MILLICOM CABLE COSTA RICA S.A.
AS262197
Colón
9.9149, -84.2417
100% uptime
|163msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)305msQuery time (median DNS query time - median ping) -
181.194.226.231Checked 4 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
Desamparados
10.0241, -84.1864
96% uptime
|179msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)445msQuery time (median DNS query time - median ping) -
201.191.46.58Checked 2 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
Liberia
10.6352, -85.4378
99% uptime
|184msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)408msQuery time (median DNS query time - median ping) -
201.207.90.58Checked 5 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
Puerto Cortés
8.9617, -83.5246
96% uptime
|179msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)366msQuery time (median DNS query time - median ping) -
168.228.51.79Checked 6 hours ago
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
AS262145
Quesada
10.3266, -84.4320
97% uptime
|184msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)436msQuery time (median DNS query time - median ping) -
186.177.85.147Checked 5 hours ago
MILLICOM CABLE COSTA RICA S.A.
AS262197
Río Segundo
10.0038, -84.1872
96% uptime
|162msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)400msQuery time (median DNS query time - median ping) -
201.204.94.110Checked 6 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
Río Segundo
10.0038, -84.1872
98% uptime
|171msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)390msQuery time (median DNS query time - median ping) -
190.113.116.171Checked 3 hours ago
Telecable Economico S.A.
AS52263
San Antonio
9.9816, -84.1859
98% uptime
|156msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)389msQuery time (median DNS query time - median ping) -
138.121.141.166Checked 3 hours ago
NAVEGALO S.A.
AS28317
San Isidro
9.3674, -83.6971
98% uptime
|162msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)250msQuery time (median DNS query time - median ping) -
186.96.89.53Checked 6 hours ago
Telefonica de Costa Rica TC, SA
AS262202
San Isidro
9.3674, -83.6971
98% uptime
|172msMedian ping from Nuremberg, Germany|14msJitter (1 standard deviation)343msQuery time (median DNS query time - median ping) -
190.10.8.50Checked 3 hours ago
RADIOGRAFICA COSTARRICENSE
AS3790
San Isidro
9.3674, -83.6971
100% uptime
|181msMedian ping from Nuremberg, Germany|11msJitter (1 standard deviation)352msQuery time (median DNS query time - median ping) -
45.65.188.205Checked 4 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San José
9.9499, -84.1366
100% uptime
|154msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)399msQuery time (median DNS query time - median ping) -
45.239.64.157Checked 4 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San José
9.9499, -84.1366
98% uptime
|163msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)400msQuery time (median DNS query time - median ping) -
186.176.214.130Checked 4 hours ago
MILLICOM CABLE COSTA RICA S.A.
AS262197
San José
9.9339, -84.0849
98% uptime
|162msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)392msQuery time (median DNS query time - median ping) -
190.123.137.166Checked 6 hours ago
Worldcom de Costa Rica, S.A.
AS28086
San José
9.9339, -84.0849
100% uptime
|165msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)203msQuery time (median DNS query time - median ping) -
200.91.122.177Checked 3 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
San José
9.9339, -84.0849
98% uptime
|181msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)494msQuery time (median DNS query time - median ping) -
201.194.101.247Checked 6 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
San José
9.9339, -84.0849
100% uptime
|183msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)406msQuery time (median DNS query time - median ping) -
201.199.244.87Checked 6 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
San José
9.9339, -84.0849
100% uptime
|168msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)482msQuery time (median DNS query time - median ping) -
38.210.160.233Checked 4 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San Rafael
9.9283, -84.1354
100% uptime
|169msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)127msQuery time (median DNS query time - median ping) -
190.149.152.126Checked 7 hours ago
TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA
AS14754
San Rafael
9.9283, -84.1354
97% uptime
|171msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)365msQuery time (median DNS query time - median ping) -
201.237.61.161Checked 3 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
San Rafael
10.0182, -84.0947
100% uptime
|170msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)481msQuery time (median DNS query time - median ping) -
201.200.126.189Checked 4 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
Santo Domingo
9.9812, -84.0898
98% uptime
|179msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)410msQuery time (median DNS query time - median ping)