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 4 hours ago
Telecable Economico S.A.
AS52263
Alajuela
10.0172, -84.2127
100% uptime
|160msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)124msQuery time (median DNS query time - median ping) -
138.94.58.47Checked 2 hours ago
Junta Administrativa del Servicio Eléctrico Municipal de Cartago(JASEC)
AS263749
Cartago
9.8637, -83.9195
100% uptime
|181msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)481msQuery time (median DNS query time - median ping) -
177.93.17.177Checked 3 hours ago
Telecable Economico S.A.
AS52263
Cartago
9.8637, -83.9195
92% uptime
|157msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)403msQuery time (median DNS query time - median ping) -
186.177.94.230Checked 7 hours ago
MILLICOM CABLE COSTA RICA S.A.
AS262197
Colón
9.9149, -84.2417
100% uptime
|158msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)294msQuery time (median DNS query time - median ping) -
186.96.89.119Checked 6 hours ago
Telefonica de Costa Rica TC, SA
AS262202
Desamparados
9.8975, -84.0635
98% uptime
|166msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)338msQuery time (median DNS query time - median ping) -
191.102.39.170Checked 8 hours ago
TRANSDATELECOM S.A
AS263698
Grecia
10.0724, -84.3112
96% uptime
|153msMedian ping from Nuremberg, Germany|14msJitter (1 standard deviation)122msQuery time (median DNS query time - median ping) -
191.102.39.237Checked 8 hours ago
TRANSDATELECOM S.A
AS263698
Grecia
10.0724, -84.3112
96% uptime
|158msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)254msQuery time (median DNS query time - median ping) -
152.231.147.37Checked 4 hours ago
Cable Tica
AS52228
Jacó
9.6150, -84.6298
83% uptime
|170msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)390msQuery time (median DNS query time - median ping) -
168.228.50.228Checked 3 hours ago
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
AS262145
La Fortuna
10.4709, -84.6453
92% uptime
|187msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)213msQuery time (median DNS query time - median ping) -
201.191.46.58Checked 6 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
Liberia
10.6352, -85.4378
100% uptime
|185msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)417msQuery time (median DNS query time - median ping) -
168.228.51.79Checked 7 hours ago
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
AS262145
Quesada
10.3266, -84.4320
98% uptime
|166msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)425msQuery time (median DNS query time - median ping) -
168.181.162.124Checked 9 hours ago
STREET FIBER S.A.
AS264686
San Francisco de Dos RÃos
9.9095, -84.0572
98% uptime
|168msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)185msQuery time (median DNS query time - median ping) -
181.119.208.9Checked 3 hours ago
UFINET PANAMA S.A.
AS52468
San Isidro
9.3674, -83.6971
92% uptime
|181msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)416msQuery time (median DNS query time - median ping) -
190.14.152.182Checked 7 hours ago
R&H International Telecom Services SA.
AS52356
San Isidro
9.3674, -83.6971
100% uptime
|175msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)100msQuery time (median DNS query time - median ping) -
190.171.100.166Checked 10 hours ago
Telecable Economico S.A.
AS52263
San Isidro
9.3674, -83.6971
97% uptime
|158msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)407msQuery time (median DNS query time - median ping) -
45.65.188.152Checked 5 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San José
9.9351, -84.1073
92% uptime
|165msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)127msQuery time (median DNS query time - median ping) -
45.65.189.237Checked 4 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San José
9.9351, -84.1073
100% uptime
|163msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)333msQuery time (median DNS query time - median ping) -
45.65.189.249Checked 6 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San José
9.9351, -84.1073
98% uptime
|164msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)115msQuery time (median DNS query time - median ping) -
45.65.190.109Checked 9 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San José
9.9351, -84.1073
97% uptime
|164msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)182msQuery time (median DNS query time - median ping) -
170.84.110.45Checked 2 hours ago
GCI SERVICE PROVIDER S.A.
AS263248
San José
9.9339, -84.0849
92% uptime
|171msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)426msQuery time (median DNS query time - median ping) -
177.93.31.10Checked 6 hours ago
Telecable Economico S.A.
AS52263
San José
9.9339, -84.0849
96% uptime
|157msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)232msQuery time (median DNS query time - median ping) -
177.93.31.25Checked 8 hours ago
Telecable Economico S.A.
AS52263
San José
9.9339, -84.0849
100% uptime
|169msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)250msQuery time (median DNS query time - median ping) -
181.194.226.231Checked 7 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
San José
9.9339, -84.0849
96% uptime
|178msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)428msQuery time (median DNS query time - median ping) -
186.15.189.65Checked 8 hours ago
Telefonica de Costa Rica TC, SA
AS262202
San José
9.9339, -84.0849
98% uptime
|168msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)297msQuery time (median DNS query time - median ping) -
190.7.217.234Checked 7 hours ago
American Data Networks
AS27876
San José
9.9339, -84.0849
98% uptime
|169msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)270msQuery time (median DNS query time - median ping) -
190.123.137.166Checked 7 hours ago
Worldcom de Costa Rica, S.A.
AS28086
San José
9.9339, -84.0849
100% uptime
|164msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)208msQuery time (median DNS query time - median ping) -
201.194.101.247Checked 8 hours ago
Instituto Costarricense de Electricidad y Telecom.
AS11830
San José
9.9339, -84.0849
100% uptime
|181msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)413msQuery time (median DNS query time - median ping) -
38.210.160.144Checked 3 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San Rafael
9.9283, -84.1354
100% uptime
|171msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)137msQuery time (median DNS query time - median ping) -
38.210.160.220Checked 5 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San Rafael
9.9283, -84.1354
100% uptime
|167msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)404msQuery time (median DNS query time - median ping) -
38.210.160.221Checked 1 hour ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San Rafael
9.9283, -84.1354
97% uptime
|163msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)116msQuery time (median DNS query time - median ping) -
38.210.161.2Checked 3 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San Rafael
9.9283, -84.1354
100% uptime
|166msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)110msQuery time (median DNS query time - median ping) -
38.210.161.31Checked 4 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San Rafael
9.9283, -84.1354
100% uptime
|168msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)115msQuery time (median DNS query time - median ping) -
38.210.161.48Checked 4 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San Rafael
9.9283, -84.1354
100% uptime
|161msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)284msQuery time (median DNS query time - median ping) -
38.210.161.80Checked 9 hours ago
Comunicaciones Metropolitanas METROCOM, S.A.
AS266853
San Rafael
9.9283, -84.1354
97% uptime
|161msMedian ping from Nuremberg, Germany|25msJitter (1 standard deviation)119msQuery time (median DNS query time - median ping) -
179.50.148.233Checked 2 hours ago
Cable Tica
AS52228
San Rafael
9.9283, -84.1354
100% uptime
|172msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)264msQuery time (median DNS query time - median ping) -
186.26.114.107Checked 10 hours ago
TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA
AS14754
San Rafael
9.9283, -84.1354
100% uptime
|177msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)132msQuery time (median DNS query time - median ping) -
200.5.62.194Checked 8 hours ago
COOPERATIVA DE ELECTRIFICACIÓN RURAL DE GUANACASTE R.L.
AS263762
Santa Cruz
10.2605, -85.5851
98% uptime
|161msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)367msQuery time (median DNS query time - median ping)