[dns-operations] Google Chrome Pre-Caching

Chris Roosenraad chris.roosenraad at twcable.com
Wed Sep 3 20:59:31 UTC 2008


For anyone who runs a customer facing DNS system/farm.  The new Google web
browser does some very aggressive DNS pre-caching (assuming you leave that
option on, which is on by default).

Specifically, if you go to the "omnibar" (their new name for the location
toolbar) and start typing "www.cnn.com" it will do 3 queries.


Similar behavior is seen for other requests (www.news.com, www.espn.com,
www.timewarner.com, etc).

I sincerely doubt there is much we can do about this...but if chrome usage
takes off, we can expect a lot more of these garbage types of lookups.

Chris R. Roosenraad
Principal Engineer
Time Warner Cable - ATG
13241 Woodland Park Road
Herndon, VA  20171
+1 (703) 345 3438
chris.roosenraad at twcable.com

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