GZip Compression
From Phoenix Cart User Guide
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Administration
From admin go to 
Configuration → GZip Compression to see this:
There is no requirement to change the default settings here unless advised by a developer.
Many Addons and Extensions available in the CE Phoenix Cart Addons Library
If help is needed, support is available in the CE Phoenix Cart Support Forum
Phoenix Cart User Guide, like CE Phoenix Cart, is free to use but is maintained by unpaid volunteers.
All other content is the reserved Intellectual Property and Copyright of phoenixcart.org
