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
A
104.18.32.7
A
172.64.155.249
Telstra
Melbourne, Australia
A
104.18.32.7
A
172.64.155.249

Log

+004
  • Find SOA and NS records of 'stackoverflow.com'
+004
  • Query the autoritative nameservers for SOA and NS records of 'stackoverflow.com'
+098
  • Got response from damian.ns.cloudflare.com.
+098
  • Add SOA server to check
+098
  • Nameserver responsibile of SOA records added: damian.ns.cloudflare.com
+098
  • Add NS servers to check
+098
  • Secondary nameserver added: sureena.ns.cloudflare.com
+098
  • Checking nameservers
+115
  • Secondary nameserver (sureena.ns.cloudflare.com) checked in 8 ms.
+145
  • Google DNS checked in 29 ms.
+154
  • Open DNS checked in 8 ms.
+157
  • Gcore checked in 49 ms.
+162
  • Cloudflare checked in 7 ms.
+169
  • Level 3 Communications Inc checked in 7 ms.
+187
  • Quad9 checked in 17 ms.
+216
  • British Telecommunications checked in 109 ms.
+255
  • UltraDNS checked in 97 ms.
+263
  • Yandex checked in 155ms. NOT matching result from primary nameserver.
+268
  • Freenom World checked in 51 ms.
+290
  • DynDNS checked in 102 ms.
+314
  • Alibaba checked in 23 ms.
+328
  • WideOpenWest checked in 13 ms.
+391
  • Radiant checked in 62 ms.
+397
  • Telstra checked in 289 ms.
+401
  • dnsforge.de checked in 132 ms.
+511
  • dns0.eu checked in 109 ms.
+550
  • TeamCAD checked in 286 ms.
+552
  • IRIDEOS checked in 154 ms.
+669
  • AdGuard checked in 116 ms.
+671
  • Telumasp checked in 279 ms.
+796
  • Global Network Systems checked in 284 ms.
+903
  • hk.net checked in 234 ms.
+934
  • Maharashtra gov checked in 383 ms.
+1.081
  • nifty.com checked in 177 ms.
+1.093
  • Nigerian Communications Satellite Ltd checked in 296 ms.
+1.173
  • VOCPhone checked in 238 ms.
+1.542
  • Milcom Co Ltd checked in 461 ms.
+1.774
  • China Mobile checked in 231 ms.
+2.269
  • Check of BlissDNS failed in 2.013ms: ConnectionTimeout
+2.675
  • Check of Interonda failed in 2.004ms: ConnectionTimeout
+2.793
  • Telefonica Servicios Internet checked in 117 ms.