A-record propagation for 'stackoverflow.com'


Authoritative name servers

Primary nameserver (SOA)
damian.ns.cloudflare.com
A
104.18.32.7
A
172.64.155.249
Secondary nameserver
sureena.ns.cloudflare.com
A
104.18.32.7
A
172.64.155.249

Global name servers

Google DNS
Mountain View, California, USA
A
104.18.32.7
A
172.64.155.249
Open DNS
San Francisco, California, USA
A
104.18.32.7
A
172.64.155.249
Cloudflare
Los Angeles, California, USA
A
104.18.32.7
A
172.64.155.249
Level 3 Communications Inc
Dallas, Texas, USA
A
104.18.32.7
A
172.64.155.249
Quad9
Berkeley, California, USA
A
104.18.32.7
A
172.64.155.249
DynDNS
Manchester, New Hampshire, United States
A
104.18.32.7
A
172.64.155.249
Alibaba
Hangzhou, China
A
104.18.32.7
A
172.64.155.249
Gcore
Luxembourg
A
104.18.32.7
A
172.64.155.249
UltraDNS
Washington D.C., USA
A
104.18.32.7
A
172.64.155.249

North America

BlissDNS
Richardson, Texas, USA
ConnectionTimeout
WideOpenWest
Indiana, USA
A
104.18.32.7
A
172.64.155.249
Radiant
Vancouver, Canada
A
104.18.32.7
A
172.64.155.249
Telumasp
Monterrey, Mexico
A
104.18.32.7
A
172.64.155.249

South America

Interonda
Puerto Ibicuy, Argentina
ConnectionTimeout
Telefonica Servicios Internet
Lima, Peru
A
104.18.32.7
A
172.64.155.249

Europe

British Telecommunications
Ipswich, United Kingdom
A
104.18.32.7
A
172.64.155.249
Freenom World
Netherlands
A
104.18.32.7
A
172.64.155.249
dnsforge.de
Germany
A
104.18.32.7
A
172.64.155.249
IRIDEOS
Milan, Italy
A
104.18.32.7
A
172.64.155.249
AdGuard
Limassol, Cyprus
A
104.18.32.7
A
172.64.155.249
dns0.eu
France
A
104.18.32.7
A
172.64.155.249

Africa

Global Network Systems
Johannesburg, South Africa
A
104.18.32.7
A
172.64.155.249
Nigerian Communications Satellite Ltd
Nigeria
A
104.18.32.7
A
172.64.155.249

Asia

Yandex
Moscow, Russian Federation
A
188.114.98.229
A
188.114.99.229
TeamCAD
Petah Tikva, Israel
A
104.18.32.7
A
172.64.155.249
Maharashtra gov
Delhi, India
A
104.18.32.7
A
172.64.155.249
hk.net
Hong Kong
A
104.18.32.7
A
172.64.155.249
nifty.com
Tokyo, Japan
A
104.18.32.7
A
172.64.155.249
Milcom Co Ltd
Thailand
A
104.18.32.7
A
172.64.155.249
China Mobile
Beijing, China
A
104.18.32.7
A
172.64.155.249

Oceania

VOCPhone
Sydney, Australia
ConnectionTimeout
Telstra
Melbourne, Australia
A
104.18.32.7
A
172.64.155.249

Log

+016
  • Find SOA and NS records of 'stackoverflow.com'
+016
  • Query the autoritative nameservers for SOA and NS records of 'stackoverflow.com'
+153
  • Got response from damian.ns.cloudflare.com.
+153
  • Add SOA server to check
+154
  • Nameserver responsibile of SOA records added: damian.ns.cloudflare.com
+154
  • Add NS servers to check
+154
  • Secondary nameserver added: sureena.ns.cloudflare.com
+154
  • Checking nameservers
+186
  • Cloudflare checked in 8 ms.
+186
  • Secondary nameserver (sureena.ns.cloudflare.com) checked in 8 ms.
+188
  • Quad9 checked in 10 ms.
+193
  • Level 3 Communications Inc checked in 14 ms.
+198
  • Open DNS checked in 10 ms.
+200
  • DynDNS checked in 21 ms.
+202
  • WideOpenWest checked in 13 ms.
+211
  • Alibaba checked in 31 ms.
+222
  • Telumasp checked in 42 ms.
+232
  • UltraDNS checked in 44 ms.
+245
  • Radiant checked in 65 ms.
+254
  • Google DNS checked in 65 ms.
+273
  • Gcore checked in 87 ms.
+294
  • British Telecommunications checked in 108 ms.
+299
  • dns0.eu checked in 118 ms.
+313
  • dnsforge.de checked in 135 ms.
+315
  • Telefonica Servicios Internet checked in 134 ms.
+348
  • TeamCAD checked in 161 ms.
+348
  • Yandex checked in 160ms. NOT matching result from primary nameserver.
+353
  • nifty.com checked in 172 ms.
+413
  • hk.net checked in 234 ms.
+416
  • China Mobile checked in 230 ms.
+468
  • Global Network Systems checked in 287 ms.
+474
  • Telstra checked in 286 ms.
+477
  • AdGuard checked in 297 ms.
+477
  • Milcom Co Ltd checked in 296 ms.
+487
  • Freenom World checked in 299 ms.
+523
  • IRIDEOS checked in 344 ms.
+600
  • Maharashtra gov checked in 421 ms.
+741
  • Nigerian Communications Satellite Ltd checked in 554 ms.
+2.179
  • Check of BlissDNS failed in 2.001ms: ConnectionTimeout
+2.194
  • Check of VOCPhone failed in 2.008ms: ConnectionTimeout
+2.194
  • Check of Interonda failed in 2.014ms: ConnectionTimeout
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