April 17 2015

Checking worldwide DNS propagation

Recently when moving website hosts I needed to update the DNS A records to point to the new hosting provider. Global DNS replication can take time and there is a great free tool to perform a DNS lookup against multiple name servers located in different parts of the world.  For example, the image below shows that the Google DNS server in Mountain View CA (USA) has a different value to the rest of the DNS servers.

For blog.danovich.com.au
For blog.danovich.com.au

When I tried again an hour later, they were all the same meaning that global replication had finished.

See https://www.whatsmydns.net for the free web based tool.



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Posted April 17, 2015 by danovich in category "Geek

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