SERVER - Improve Server Performances With Headers And GZIP

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SERVER - Improve Server Performances With Headers And GZIP

Tags And Keywords: cache, gzip, headers, htaccess, performance, server

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Mighty Gorgon

Luca Libralato

Joined: August 2006
Posts: 7191
Location:

Borgo San Michele

SERVER - Improve Server Performances With Headers And GZIP

Hi,
I have recently found this very interesting code to be added to templates/.htaccess to speed up page loading.

In particular this first part is for sending text files using GZIP to save bandwidth and speed up script and stylesheets loading:

Code: [Download] [Hide] [Select]

<IfModule mod_deflate.c>

SetOutputFilter DEFLATE

# Netscape 4.x has some problems...

BrowserMatch ^Mozilla/4 gzip-only-text/html

# Netscape 4.06-4.08 have some more problems

BrowserMatch ^Mozilla/4\.0[678] no-gzip

# MSIE masquerades as Netscape, but it is fine

# BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

# NOTE: Due to a bug in mod_setenvif up to Apache 2.0.48

# the above regex won't work. You can use the following

# workaround to get the desired effect:

BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html

# Don't compress images

SetEnvIfNoCase Request_URI \

\.(?:gif|jpe?g|png)$ no-gzip dont-vary

# Make sure proxies don't deliver the wrong content

Header append Vary User-Agent env=!dont-vary

</IfModule>

This part is maybe more useful, because let's you add EXPIRES for some particular files (JS, CSS, templates images) allowing browsers to keep in cache (if they are not yet doing that) some common files which are rarely changed:

Code: [Download] [Hide] [Select]

<IfModule mod_expires.c>

    # Once per day I think is enough for most cases...

    ExpiresActive on

    ExpiresByType image/gif "access plus 1 day"

    ExpiresByType image/jpeg "access plus 1 day"

    ExpiresByType image/jpg "access plus 1 day"

    ExpiresByType image/png "access plus 1 day"

    ExpiresByType text/plain "access plus 1 day"

    #ExpiresByType text/html "access plus 15 minutes"

    #ExpiresByType text/tpl "access plus 15 minutes"

    ExpiresByType text/css "access plus 1 day"

    ExpiresByType text/javascript "access plus 1 day"

    ExpiresByType application/x-shockwave-flash "access plus 1 day"

</IfModule>

You can add both of these code to templates/.htaccess (just paste below the other code) or use only what you need / like... I personally use both of them here, and I think speed has improved.

Let me know if you have any questions about that.

P.S.: of course these pieces of codes will only work on thse servers with the right APACHE MODULES loaded.

____________
Luca
SEARCH is the quickest way to get support.
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#1 Wed 02 Mar, 2011 15:57

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spydie Joined: December 2008 Posts: 1796 Location: In the Boxes	Re: SERVER - Improve Server Performances With Headers And GZIP good one MG personaly, been using js compression and css compression for a while already. ____________ Out of Order
#2 Wed 02 Mar, 2011 16:01

TheSteffen Joined: August 2006 Posts: 1625 Location: Magdeburg	Re: SERVER - Improve Server Performances With Headers And GZIP Thanks MG, I will test it ____________ TheSteffen Often SEARCH is the quickest way to get support. IcyPhoenix German Support
#3 Wed 02 Mar, 2011 22:50

nothere Joined: May 2010 Posts: 45	Re: SERVER - Improve Server Performances With Headers And GZIP Very nice. Thank you, MG. I noticed a difference right away.
#4 Sun 24 Apr, 2011 22:10

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