Question

How to enable compression for a particular webspace on a WebHosting Linux server?

Answer

The Apache module mod_deflate is supported since Odin Automation 7.3. Also, it is necessary that on the web server was running under CloudLinux 6.0 or higher.

First of all, make sure the mod_deflate module is enabled:

[root@linweb httpd]# grep -i deflate /etc/httpd/conf/httpd.conf
LOADMODULE deflate_module modules/mod_deflate.so

[root@linweb httpd]# apachectl -M | grep -i deflate
[Thu Jun 07 11:02:17 2018] [notice] POA VHosts: module has registered its hooks.
Syntax OK
 deflate_module (shared)

To enable compression on a particular website, follow the below steps:

  1. Go to the website directory:

    # cd /var/www/vhosts/3/100007/webspace/httpdocs/example.com

  2. Add the below line to the .htaccess file:

    AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/javascript

  3. Check that the response header Content-Encoding: gzip is present and the content is compressed:

    [root@linweb ~]# curl -i -H 'Accept-Encoding: gzip,deflate' http://example.com/index.html
HTTP/1.1 200 OK
Date: Thu, 07 Jun 2018 05:18:06 GMT
Server: Apache
X-SERVER: 11
Last-Modified: Fri, 18 May 2018 10:47:46 GMT
ETag: "20-56c78aeb0b588"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 46
Content-Type: text/html

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