If I use online dig tool (https://toolbox.googleapps.com/apps/dig/#A/) for google.com. it returns

google.com. 299 IN A

i have tried an other online tool (https://www.digwebinterface.com), it returns:

google.com.     299 IN  A 

but on my local computer (Ubuntu linux virtual box). dig google.com


google.com.             3600    IN      A

why on different places , Dig returns different result.


Google uses different DNS for different areas to speed up the connection and reduce their bandwidth costs (and maybe to point to different servers to do a/b testing or limit results based on geographic requirements)

Their DNS servers are programmed to give different information depending on the connrction and your IP.

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