website errors - browser caching and Vary: Accept-Encoding header

i have a site i am working on,

i get low scores due to these errors,

Leverage browser caching
and
Specify a Vary: Accept-Encoding header

i looked at there links to google, but have not been able to incorporate it into the site.

thanks for your help.

here is an image and link

http://tools.pingdom.com/fpt/#!/OU1lfq4AL/http://fordag.com

errors
webdottAsked:
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webdottAuthor Commented:
found this - understand it now:

create a notepad file called:

.htaccess

save this in it:
## EXPIRES CACHING ##
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/jpg "access 1 month"
ExpiresByType image/jpeg "access 1 month"
ExpiresByType image/gif "access 1 month"
ExpiresByType image/png "access 1 month"
ExpiresByType image/bmp "access 1 month"
ExpiresByType text/css "access 1 month"
ExpiresByType application/pdf "access 1 month"
ExpiresByType text/x-javascript "access 1 month"
ExpiresByType text/javascript "access 1 month"
ExpiresByType text/html "access 1 month"
ExpiresByType text/xml "access 1 month"
ExpiresByType text/plain "access 1 month"
ExpiresByType application/x-shockwave-flash "access 1 month"
ExpiresByType application/javascript "access 1 month"
ExpiresByType application/x-javascript "access 1 month"
ExpiresByType image/x-icon "access 1 year"
ExpiresDefault "access 2 days"
</IfModule>
## EXPIRES CACHING ##

how do i add this to expire?
http://www.google-analytics.com/ga.js

I tried:
ExpiresByType application/js "access 1 month"

thanks for any help
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gr8gonzoConsultantCommented:
The ga.js is hosted by a different site. Since you are not the owner, you cannot control its caching/expiration.
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kevp75Commented:
That is not necessarily true gr8gonzo...  you could devise a method to download the js file, and build in a caching mechanism

I do it in .Net
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gr8gonzoConsultantCommented:
@kevp75, if it were a standard JS file that could run locally, I would agree, but typically the JS files from web traffic analysis services like Google Analytics, Omniture, Hitbox, WebTrends, etc... - those NEED to run from the host service. When the browser hits it, the service is notified of that hit. GA may be able to be tinkered with, but it's not the recommended path, nor would it speed up the site at all.

Plus, if Google wants you to cache that file, then by hosting it themselves, they are suppressing a lot of internet traffic overall (if you download it from Site A, then it becomes cached for Site B, C, and D that also use the same file). In fact, webdott could very well be Site B or C or D so it may already be cached by a visitor who has been on a different site that used the analytics JS. By trying to host it himself, he could be adding more unnecessary downloads for his visitor.

Also, most browsers have a limit on how many simultaneous transfers they get from a domain, so by pulling the JS from Google Analytics's domain, you're actually allowing the browser to pull more resources faster (when they don't have it cached). While IE (for example) is pulling 2 resources from webdott's domain, it can also pull the GA resource at the same time. (This is why CDNs can make such a positive impact on performance - it's a divide and conquer strategy).
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webdottAuthor Commented:
thanks for explaining it.  it sucks i can't index it to get a score of 100,
but google already does its best to speed the internet.

the site still runs fast. i was just trying to fix all the bugs.

thanks again for your help and detailed info.
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