Magento : How to speed up Magento

Many Magento issues are caused by slow performance.

1.The recommended way to speed up Magento's performance is to enable its Compilation function.  The performance increase is between 25%-50% on page loads.

You can enable Magento Compilation from your Magento admin panel > System > Tools > Compilation.

2..Modifying, I mean uncommenting few lines in your .htaccess file can speed up your magento site a looooot. Find these lines below and just remove # before them.

############################################

## enable apache served files compression

## http://developer.yahoo.com/performance/rules.html#gzip

# Insert filter

SetOutputFilter DEFLATE

# Netscape 4.x has some problems…

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

# Netscape 4.06-4.08 have some online cialis more problems

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

# MSIE masquerades as Netscape, but it is fine

BrowserMatch Buy Generic Drugs Without Prescription \bMSIE !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

# enable resulting html compression

php_flag zlib.output_compression on

3.An easier way to improve Magento website speed is to turn on GZip compression via .htaccess. GZip compression is a kind of technique to compress textual content when it’s transferred from the web server to a user’s browser.

A single web page from a Magento site can be a few hundreds KB -one of my site shows its homepage size is 500KB when Yahoo homepage is 200KB! (you can check this by clicking Information View Document Size from FireFox developer’s tool bar.)

GZip compression can reduce page size significantly and transfer the data faster to your site visitors.

The files that can be compressed are text files such as XHTML, JavaScript or CSS. Image, video or other multi media files are already compressed.

Find the section for “mod_deflate.c” from your .htaccess file and uncomment the settings as follows:

<IfModule mod_deflate.c>

############################################

## enable apache served files compression

## http://developer.yahoo.com/performance/rules.html#gzip

# Insert filter

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

# 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>

############################################

## enable resulting html compression

php_flag zlib.output_compression on