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Date: Fri, 23 Apr 2004 14:06:23 -0500
To: Charles Swiger <cswiger@mac.com>
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From: Dan Rue <drue@therub.org>
cc: jammet@swbell.net
cc: freebsd-questions@freebsd.org
Subject: Re: Slow loading websites
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On Fri, Apr 23, 2004 at 02:13:13PM -0400, Charles Swiger wrote:
> On Apr 23, 2004, at 1:38 PM, Jammet wrote:
> >When i go to a website, say Slashdot or freshmeat, or any where that
> >involves ads on the page some where, about 99% of the time it can take
> >upwards of 2-3 minutes to load the entire page. [ ... ]
> >I guess my main question is, anyone ever seen this, if so ever get it
> >fixed?
> 
> Most probably, you are running into delays because your browser queries 
> websites for an IPv6 address before trying an IPv4 address.  
> Reportedly, many ad-sites use broken nameservers which botch IPv6 
> queries, causing the delay.  The problem lies on their end, not yours, 
> but disabling IPv6 or using a proxy server like Squid will probably 
> remove the delays.

Most of that is true.  However, I found it to be a problem with firefox
specifically - in that firefox waits for the 75 second timeout.  Forced
me to switch to opera :)

It looks like it will be fixed in the next version of mozilla, though:
http://bugzilla.mozilla.org/show_bug.cgi?id=68796

The quickest workaround is to add 
::0                     ad.doubleclick.com
::0                     ad.doubleclick.net
to /etc/hosts (not a bad thing to keep in there, really).

hth,
dan