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.
-
23.138.88.167Checked 5 hours ago
ALPHANET CORP
AS400354
Adjuntas
18.1627, -66.7221
100% uptime
|129msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)274msQuery time (median DNS query time - median ping) -
38.50.71.134Checked 5 hours ago
Aeronet Wireless
AS14979
Bayamón
18.3986, -66.1557
99% uptime
|160msMedian ping from Nuremberg, Germany|19msJitter (1 standard deviation)347msQuery time (median DNS query time - median ping) -
38.50.71.136Checked 4 hours ago
Aeronet Wireless
AS14979
Bayamón
18.3986, -66.1557
100% uptime
|154msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)342msQuery time (median DNS query time - median ping) -
38.50.71.160Checked 2 hours ago
Aeronet Wireless
AS14979
Bayamón
18.3986, -66.1557
100% uptime
|155msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)336msQuery time (median DNS query time - median ping) -
38.50.95.131Checked 7 hours ago
Aeronet Wireless
AS14979
Caguas
18.2341, -66.0485
98% uptime
|156msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)324msQuery time (median DNS query time - median ping) -
38.50.85.101Checked 6 hours ago
Aeronet Wireless
AS14979
Carolina
18.3808, -65.9574
99% uptime
|156msMedian ping from Nuremberg, Germany|11msJitter (1 standard deviation)352msQuery time (median DNS query time - median ping) -
38.50.93.90Checked 1 hour ago
Aeronet Wireless
AS14979
Guaynabo
18.3575, -66.1110
94% uptime
|155msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)327msQuery time (median DNS query time - median ping) -
38.158.218.62Checked 1 hour ago
FiberX
AS6208
Guaynabo
18.3575, -66.1110
100% uptime
|123msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)300msQuery time (median DNS query time - median ping) -
38.50.84.18Checked 4 hours ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
100% uptime
|176msMedian ping from Nuremberg, Germany|16msJitter (1 standard deviation)350msQuery time (median DNS query time - median ping) -
38.50.84.41Checked 55 minutes ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
100% uptime
|154msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)300msQuery time (median DNS query time - median ping) -
38.50.84.102Checked 7 minutes ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
99% uptime
|153msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)262msQuery time (median DNS query time - median ping) -
38.50.84.114Checked 5 hours ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
98% uptime
|152msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)328msQuery time (median DNS query time - median ping) -
38.50.84.219Checked 5 hours ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
94% uptime
|154msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)323msQuery time (median DNS query time - median ping) -
38.50.93.130Checked 2 hours ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
100% uptime
|162msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)341msQuery time (median DNS query time - median ping) -
38.50.93.150Checked 2 hours ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
100% uptime
|151msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)356msQuery time (median DNS query time - median ping) -
38.50.93.174Checked 1 hour ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
100% uptime
|154msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)268msQuery time (median DNS query time - median ping) -
38.50.94.95Checked 1 hour ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
100% uptime
|154msMedian ping from Nuremberg, Germany|0msJitter (1 standard deviation)280msQuery time (median DNS query time - median ping) -
38.50.94.99Checked 1 hour ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
100% uptime
|154msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)355msQuery time (median DNS query time - median ping) -
38.50.94.142Checked 3 hours ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
94% uptime
|155msMedian ping from Nuremberg, Germany|19msJitter (1 standard deviation)353msQuery time (median DNS query time - median ping) -
38.50.94.155Checked 3 hours ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
94% uptime
|156msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)351msQuery time (median DNS query time - median ping) -
38.50.94.252Checked 2 hours ago
Aeronet Wireless
AS14979
Mayagüez
18.2011, -67.1396
100% uptime
|148msMedian ping from Nuremberg, Germany|14msJitter (1 standard deviation)285msQuery time (median DNS query time - median ping) -
38.50.64.15Checked 4 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|154msMedian ping from Nuremberg, Germany|11msJitter (1 standard deviation)323msQuery time (median DNS query time - median ping) -
38.50.64.20Checked 2 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|154msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)437msQuery time (median DNS query time - median ping) -
38.50.64.225Checked 4 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|158msMedian ping from Nuremberg, Germany|11msJitter (1 standard deviation)342msQuery time (median DNS query time - median ping) -
38.50.65.48Checked 3 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|154msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)334msQuery time (median DNS query time - median ping) -
38.50.65.54Checked 2 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|148msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)319msQuery time (median DNS query time - median ping) -
38.50.65.136Checked 7 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|156msMedian ping from Nuremberg, Germany|7msJitter (1 standard deviation)230msQuery time (median DNS query time - median ping) -
38.50.65.243Checked 1 hour ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|158msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)349msQuery time (median DNS query time - median ping) -
38.50.66.1Checked 4 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|153msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)326msQuery time (median DNS query time - median ping) -
38.50.66.18Checked 4 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
93% uptime
|164msMedian ping from Nuremberg, Germany|6msJitter (1 standard deviation)434msQuery time (median DNS query time - median ping) -
38.50.66.108Checked 5 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
99% uptime
|139msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)250msQuery time (median DNS query time - median ping) -
38.50.66.252Checked 3 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
94% uptime
|146msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)305msQuery time (median DNS query time - median ping) -
38.50.67.36Checked 21 minutes ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
98% uptime
|156msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)236msQuery time (median DNS query time - median ping) -
38.50.67.181Checked 9 minutes ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
99% uptime
|156msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)320msQuery time (median DNS query time - median ping) -
38.50.68.125Checked 4 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|153msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)193msQuery time (median DNS query time - median ping) -
38.50.68.144Checked 4 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|156msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)330msQuery time (median DNS query time - median ping) -
38.50.68.201Checked 1 hour ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|154msMedian ping from Nuremberg, Germany|28msJitter (1 standard deviation)328msQuery time (median DNS query time - median ping) -
38.50.68.247Checked 4 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|149msMedian ping from Nuremberg, Germany|15msJitter (1 standard deviation)285msQuery time (median DNS query time - median ping) -
38.50.69.51Checked 3 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
88% uptime
|159msMedian ping from Nuremberg, Germany|21msJitter (1 standard deviation)332msQuery time (median DNS query time - median ping) -
38.50.69.63Checked 6 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
98% uptime
|159msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)221msQuery time (median DNS query time - median ping) -
38.50.69.81Checked 5 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|155msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)214msQuery time (median DNS query time - median ping) -
38.50.69.224Checked 1 hour ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|154msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)335msQuery time (median DNS query time - median ping) -
38.50.70.188Checked 1 hour ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|154msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)338msQuery time (median DNS query time - median ping) -
38.50.70.196Checked 2 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|154msMedian ping from Nuremberg, Germany|14msJitter (1 standard deviation)328msQuery time (median DNS query time - median ping) -
38.50.70.229Checked 7 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|155msMedian ping from Nuremberg, Germany|11msJitter (1 standard deviation)295msQuery time (median DNS query time - median ping) -
38.50.71.229Checked 5 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|158msMedian ping from Nuremberg, Germany|4msJitter (1 standard deviation)222msQuery time (median DNS query time - median ping) -
38.50.71.249Checked 2 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|154msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)104msQuery time (median DNS query time - median ping) -
38.50.85.17Checked 5 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
98% uptime
|153msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)298msQuery time (median DNS query time - median ping) -
38.50.85.80Checked 2 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|146msMedian ping from Nuremberg, Germany|1msJitter (1 standard deviation)318msQuery time (median DNS query time - median ping) -
38.50.85.138Checked 44 minutes ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|140msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)285msQuery time (median DNS query time - median ping) -
38.50.85.142Checked 1 hour ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|154msMedian ping from Nuremberg, Germany|9msJitter (1 standard deviation)298msQuery time (median DNS query time - median ping) -
38.50.85.162Checked 2 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|155msMedian ping from Nuremberg, Germany|12msJitter (1 standard deviation)330msQuery time (median DNS query time - median ping) -
38.50.85.197Checked 2 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|157msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)214msQuery time (median DNS query time - median ping) -
38.50.85.231Checked 1 hour ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|144msMedian ping from Nuremberg, Germany|2msJitter (1 standard deviation)302msQuery time (median DNS query time - median ping) -
38.50.85.248Checked 4 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|141msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)294msQuery time (median DNS query time - median ping) -
38.50.92.244Checked 1 hour ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
100% uptime
|156msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)94msQuery time (median DNS query time - median ping) -
38.50.94.198Checked 5 hours ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
98% uptime
|157msMedian ping from Nuremberg, Germany|24msJitter (1 standard deviation)343msQuery time (median DNS query time - median ping) -
69.79.224.254Checked 2 hours ago
Columbus Networks USA, Inc.
AS23520
San Juan
18.4663, -66.1057
100% uptime
|147msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)483msQuery time (median DNS query time - median ping) -
139.60.189.129Checked 9 minutes ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
99% uptime
|149msMedian ping from Nuremberg, Germany|8msJitter (1 standard deviation)102msQuery time (median DNS query time - median ping) -
162.251.158.13Checked 2 hours ago
Smart Networks,LLC
AS22555
San Juan
18.4663, -66.1057
100% uptime
|141msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)228msQuery time (median DNS query time - median ping) -
162.251.158.51Checked 4 hours ago
Smart Networks,LLC
AS22555
San Juan
18.4663, -66.1057
100% uptime
|135msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)236msQuery time (median DNS query time - median ping) -
162.251.158.106Checked 1 hour ago
Smart Networks,LLC
AS22555
San Juan
18.4663, -66.1057
100% uptime
|135msMedian ping from Nuremberg, Germany|13msJitter (1 standard deviation)250msQuery time (median DNS query time - median ping) -
162.251.158.119Checked 1 hour ago
Smart Networks,LLC
AS22555
San Juan
18.4663, -66.1057
94% uptime
|132msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)228msQuery time (median DNS query time - median ping) -
162.251.158.129Checked 3 hours ago
Smart Networks,LLC
AS22555
San Juan
18.4663, -66.1057
100% uptime
|138msMedian ping from Nuremberg, Germany|3msJitter (1 standard deviation)242msQuery time (median DNS query time - median ping) -
173.243.91.194Checked 13 minutes ago
Aeronet Wireless
AS14979
San Juan
18.4663, -66.1057
98% uptime
|141msMedian ping from Nuremberg, Germany|5msJitter (1 standard deviation)293msQuery time (median DNS query time - median ping) -
207.174.74.3Checked 54 minutes ago
Natural G.C. Inc.
AS396899
San Juan
18.4663, -66.1057
100% uptime
|132msMedian ping from Nuremberg, Germany|10msJitter (1 standard deviation)318msQuery time (median DNS query time - median ping)