How to Enable Gzip Compression in Magento

.htaccessgzipmagento-1.9

I need to setup Gzip compression for a Magento project. I have tried many code in the .htaccess file in my project, but weren't able to enable Gzip.

Please give me the right solution.

Best Answer

Make sure mod_deflate is on in Apache. You can check by creating an info.php file and calling phpinfo();. It will output server PHP / Apache specs in the browser. Don't forget to remove it when you're done!

Then add the following to your htaccess file

<IfModule mod_php5.c>
    ## enable resulting html compression
   php_flag zlib.output_compression on
</IfModule>

<IfModule mod_deflate.c>

    ## Force compression for mangled `Accept-Encoding` request headers
    <IfModule mod_setenvif.c>
        <IfModule mod_headers.c>
            SetEnvIfNoCase ^(Accept-EncodXng|X-cept-Encoding|X{15}|~{15}|-{15})$ ^((gzip|deflate)\s*,?\s*)+|[X~-]{4,13}$ HAVE_Accept-Encoding
            RequestHeader append Accept-Encoding "gzip,deflate" env=HAVE_Accept-Encoding
        </IfModule>
    </IfModule>

    ## Compress all output labeled with one of the following media types.
    <IfModule mod_filter.c>
        AddOutputFilterByType DEFLATE "application/atom+xml" \
                                      "application/javascript" \
                                      "application/json" \
                                      "application/ld+json" \
                                      "application/manifest+json" \
                                      "application/rdf+xml" \
                                      "application/rss+xml" \
                                      "application/schema+json" \
                                      "application/vnd.geo+json" \
                                      "application/vnd.ms-fontobject" \
                                      "application/x-font-ttf" \
                                      "application/x-javascript" \
                                      "application/x-web-app-manifest+json" \
                                      "application/xhtml+xml" \
                                      "application/xml" \
                                      "font/eot" \
                                      "font/opentype" \
                                      "image/bmp" \
                                      "image/svg+xml" \
                                      "image/vnd.microsoft.icon" \
                                      "image/x-icon" \
                                      "text/cache-manifest" \
                                      "text/css" \
                                      "text/html" \
                                      "text/javascript" \
                                      "text/plain" \
                                      "text/vcard" \
                                      "text/vnd.rim.location.xloc" \
                                      "text/vtt" \
                                      "text/x-component" \
                                      "text/x-cross-domain-policy" \
                                      "text/xml"

    </IfModule>

    ## Map the following filename extensions to the specified
    ## encoding type in order to make Apache serve the file types
    ## with the appropriate `Content-Encoding` response header
    ## (do note that this will NOT make Apache compress them!).
    <IfModule mod_mime.c>
        AddEncoding gzip              svgz
    </IfModule>

</IfModule>

Related Solutions

Magento – How to GZIP the merged JS file

Here is an answer that Allan Storm gave someone on StackOverflow (credit goes to him):

When Magento merges any CSS and Javascript files that pass through its rendering system, it will create URLs for those resource like this, and add them to the head of the page

http://magento1point6point1.dev/media/css/a438f0287fdd0c52d9bd196d355a63c3.css
http://magento1point6point1.dev/media/js/0567fb98ebe279ea4faf5acf433fc6a1.js

in turn, this will generate files on the filesystem

media/css/a438f0287fdd0c52d9bd196d355a63c3.css
media/js/0567fb98ebe279ea4faf5acf433fc6a1.js

At this point, Magento is removed from the process almost completely (there's a RewriteCond %{REQUEST_URI} !^/(media|skin|js)/ in .htaccess to catch non-existant files). It sounds like you have gzip compression setup correctly for other areas of the site. So, however you've configured other folders for gzip compression, configure media/css and media/js to do the same.

To read the whole question read: Gzip on merged CSS/JS files in Magento

Magento – Downloadable Zip Files are corrupt

If this is happening to direct downloads of zip files, it's definitely the rules in the .htaccess or apache config. You'll want to update this section of your .htaccess file:

# Don't compress images
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary

with this:

# Don't compress images or zip files
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png|zip)$ no-gzip dont-vary

Then make sure that you DO NOT have the blanket SetOutputFilter DEFLATE rule set and are only using the AddOutputFilterByType rule to enable the compression. The latter one will turn it on based on mime-type, whereas the first enables it across the board on everything.

After you do this, the server should definitely NOT be double compressing the data when serving files resources where the URL ends in .zip by merit of the mime-type as well as the URI matching the pattern.

If this is happening only on downloads of zip files from purchased downloadable products, and you've done both of the things mentioned above, then you'll need to verify that the Content-Type: application/zip header is being sent with the download since Magento essentially proxies the content to the browser in a data stream and sets the mime-types itself.

The easiest way to check the headers is to use curl like this:

$ curl -sv http://mage.dev/1.7/downloadable/download/linkSample/link_id/1/ > /dev/null
* About to connect() to mage.dev port 80 (#0)
*   Trying 127.0.0.1...
* connected
* Connected to mage.dev (127.0.0.1) port 80 (#0)
> GET /1.7/downloadable/download/linkSample/link_id/1/ HTTP/1.1
> User-Agent: curl/7.24.0 (x86_64-apple-darwin12.0) libcurl/7.24.0 OpenSSL/0.9.8r zlib/1.2.5
> Host: mage.dev
> Accept: */*
> 
< HTTP/1.1 200 OK
< Date: Wed, 08 May 2013 01:55:36 GMT
< Server: Apache/2.2.22 (Unix) PHP/5.3.14 mod_ssl/2.2.22 OpenSSL/0.9.8o
< X-Powered-By: PHP/5.3.14 ZendServer/5.0
< Set-Cookie: frontend=v8qacn7t586ckfljbibnm4ea82; expires=Wed, 08-May-2013 02:55:36 GMT; path=/1.7; domain=mage.dev; HttpOnly
< Expires: Thu, 19 Nov 1981 08:52:00 GMT
< Cache-Control: must-revalidate, post-check=0, pre-check=0
< Pragma: public
< Content-Length: 905467
< Content-Disposition: inline; filename=lame.zip
< Content-Type: application/zip
< 
{ [data not shown]
* Connection #0 to host mage.dev left intact
* Closing connection #0

Best Answer

Related Solutions

Magento – How to GZIP the merged JS file

Magento – Downloadable Zip Files are corrupt

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