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Big surprise: 15% with no compressed delivery

8:02 pm on Apr 3, 2009 (gmt 0)

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WebmasterWorld Senior Member jetteroheller is a WebmasterWorld Top Contributor of All Time 10+ Year Member Top Contributors Of The Month

joined:Jan 22, 2005
posts: 2979
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After long resarch, I decided in January for compressed delivery of html and javascript files.

99,9999% of all used browsers understand compressed delivery, so it should be no problem.

So I simple added

AddEncoding x-gzip .htm
AddEncoding x-gzip .js

And wrote in my CMS a routine to compress all files of this types before up loading.

The traffic increased, so I thougt all is fine.

But meeting with a regular visitor of my site, it turned out, that there are problems.

Because my provider did not install mod_gunzip
I had to do own resarch to decompress for accept-encoding !gzip

Now I checked the access to a javascript

Big surprise,

15% of all access to the javascript had been redirected to the decompress script

But how was it possible to see an increase in AdSense traffic, when 15% of all visitors see only a compressed file?

I think most requests where accept-enoding without gzip pass the encoding information back to the browser.

Only a few filter out the enoding information, so the browser shows strange on the screen