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Mod_Deflate or Gzip is not enabled on my Server


All servers should come with mod_deflate and/or gzip enabled.

If you are experiencing any issues with these, you will need to check if zlib.output_compression is enabled as well.

Without zlib.output_compression, gzip or mod_deflate will fail to run.

Once it's enabled you can confirm it's turned on by testing your website here https://checkgzipcompression.com/

Enabling zlib.output_compression in WHM
If you are looking to update this for a single account, you can do so from within the cPanel through the guide below.

Step 1 - Login to WHM using root credentials and open up MultiPHP INI Editor.

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Step 2 - Select the appropriate PHP version.

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Step 3 - Scroll to the bottom and look for zlib.output_compression, make sure it is (1) Enabled and then (2) Apply.

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Enabling zlib.output_compression in cPanel
Step 1 - Login to cPanel for the account and click into MultiPHP INI Editor.

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Step 2 - Select the website or directory.

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Step 3 - Scroll to the bottom and look for zlib.output_compression, make sure it is (1) Enabled and then (2) Apply.

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