I can list the concerns of the high-end corporate sites to whom I've 
spoken.
Hits alone are not enough. They want to build relationships with individual 
customers, tailoring their message to specific users based on user profile 
data, demographics, etc. Building web sites is all about driving off-line 
sales for most companies, and to justify their investment they want to have 
as much control as possible over the marketing messages or campaigns that 
they conduct. This means remembering what products you already own, and 
showing you product updates, tips & tricks, announcements, errata, etc. 
This also means providing different users with different marketing 
material. Even the advertising-based sites are no longer interested in just 
hits - some sites also want to know the types of users that are viewing 
each ad or clicking through. Click-throughs are typically not a problem 
with caching, however, since the "click-though" page is usually a script of 
some sort and legitimately has expires=date. Sites like www.microsoft.com, 
that are currently sending down expires=date on apparently static pages, 
are most likely simply staging in their roll-out of more personalized 
information. The first step is to get the site running from interpreted 
scripts instead of static HTML (the .asp moniker at the end of the URL), 
and then dynamic elements can be introduced over time. Most sites need to 
first evaluate the performance hit of running from interpreted code before 
they completely commit to running everything dynamic.
-----Original Message-----
From:	Manar Hussain [SMTP:manar@ivision.co.uk]
Sent:	Tuesday, December 17, 1996 1:45 PM
To:	ircache@nlanr.net; squid-users@nlanr.net
Subject:	Re: A More Aggressive Approach to Caching
>Last night I came up with another way of dealing with "cache unfriendly"
>sites.
>
>The cache could keep track of what sort of hit rates it gets for each
>server hostname.  In situations where bandwidth is scarce, the 
low-hit-rate
>sites could be given lower priority or "quality of service."
I think this is a very valid tactic to have in hand - BUT I would be very
dissappointed if such actions were taken without significant attempts at
bringing "offenders" into the debate and taking on board their concerns. I
trust my faith that this would be so is well-placed.
Manar
Received on Tue Dec 17 1996 - 15:59:35 MST
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