GZIP Compression not working

Hello,

Please go to your WP Dashboard, Performance>Dashboard and run Compatibility test by clicking on “Compatibility check” button near the top of the page.
Share your results here.

this is the test result:
Installed/Ok/Yes/True: Functionality will work properly.
Not detected/Not installed/Off: May be installed, but cannot be automatically confirmed. Functionality will be limited.
Not Installed/Error/No/False: Plugin or some functions may not work.
Server Modules & Resources:
Plugin Version: 0.9.7
PHP Version: 5.6.36-1+0~20180505045928.13+stretch~1.gbp9b5cab;
Web Server: Apache
FTP functions: Installed (required for Self-hosted (FTP) CDN support)
Multibyte String support: Installed (required for Rackspace Cloud Files support)
cURL extension: Installed (required for Amazon S3, Amazon CloudFront, Rackspace CloudFiles support)
zlib extension: Installed (required for compression support)
Opcode cache: Installed (OPCache)
Memcached extension: Not installed
Memcache extension: Not installed
Redis extension: Not installed
HTML Tidy extension: Not installed (required for HTML Tidy minifier support)
Mime type detection: Installed (Fileinfo) (required for CDN support)
Hash function: Installed (hash) (required for NetDNA / MaxCDN CDN purge support)
Open basedir: Off
zlib output compression: Off
set_time_limit: Available
mod_deflate: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_env: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_expires: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_filter: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_ext_filter: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_headers: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_mime: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_rewrite: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_setenvif: Not detected (required for disk enhanced Page Cache and Browser Cache)
Additional Server Modules
New Relic
PHP version: Supported
Operating System: Supported
Web Server: Not Supported. (Apache See NewRelic Requirements page.)
WordPress Resources
/home/mhd-01/www.ferentino.org/htdocs/.htaccess: OK
/home/mhd-01/www.ferentino.org/htdocs/wp-content: OK
/home/mhd-01/www.ferentino.org/htdocs/wp-content/uploads/2018/11: OK
Fancy permalinks: /%postname%/
WP_CACHE define: Defined (true)
URL rewrite: Enabled
Network mode: No

Hello,

You should make sure mod_deflate is enabled in your installation. The mod_deflate module provides the DEFLATE output filter that allows the output from your server to be compressed before being sent to the client over the network.

Hi,
I wrote the following code in my .htaccess file:

#Codice per abilitare la compressione
<IfModule mod_deflate.c>
<IfModule mod_headers.c>
Header append Vary User-Agent env=!dont-vary
</IfModule>
AddOutputFilterByType DEFLATE text/css text/x-component application/x-javascript application/javascript text/javascript text/x-js text/html text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon application/json
<IfModule mod_mime.c>
# DEFLATE by extension
AddOutputFilter DEFLATE js css htm html xml
</IfModule>
</IfModule>
#Fine codice per abilitare la compressione

but the things get worse…

Hello,

Try to follow the instructions on this link on how to enable Apache module deflate.

Hi Marko,
I follow all instructions contained in the above said link and everything is active on my server but no GZIPCompression available. Furthermore I find that Knight Lab TimelineJS plugin does not work.

I tried also, in the proper section, to do not minify connected js and css files but without success!

the second highlighted problem seems OK

Hello,

I am looking at your website right now. You have some problem with configuration, your CSS is broken. Regarding gzip. I think you have an issue with external resources, Facebook to be exact. Those external resources is causing what you see on GTmetrix.

I have the same problem with external resources, Facebook to be exact
I do not know what to do

• This reply was modified 6 years ago by santebio.

Hello @santebio,

We can’t control external third party resources.

Hi, I tried to deactivate the Facebook plugin but… nothing changes

then to decrease the loading time
how do i do with external third party resources

in the first instance I removed the facebook plugin which is the one that causes the biggest problems

Hello @vmarko
I’m having the same problem, I can not enable the gzip function, when I test the web through gtmetrix or pagespeed it accuses that there is no compression for the site. I looked at the performance and saw that mod_deflate: is installed.

Another doubt would be in the free version of the plugin the option of memcached is disabled it means that it only works in the premium version or to enable it would be some configuration on the server.

• This reply was modified 5 years, 7 months ago by tiicaa.