Gzip is a data compression algorithm capable of compressing and decompressing files quickly.
How can enabling GZIP can make a website load faster?
Using GZIP on a website
On Apache web server gzip compression is utilized to compress the outgoing traffic via mod_deflate.
To use GZIP on a website mod_deflate must be installed, enabled and loaded with Apache.
You can check of mod_deflate status by running below command in the linux terminal.
>sudo httpd -M | grep deflate
if mod_deflate is installed and enabled, you should see deflate_module (shared).