I used this Google tool to test my web site.
When I got the report it recommended the following..
Compress resources with GZIP
See how to enable GZIP compression »
When I look at the response of my html css, or js files in chrome dev tools, I see the following encoding..
br (for example here),
br seems to be another compression, an alternative to
Also, when I use a tool such as this, is suggest my site is compressed.
I do notice my images don't have this encoding, but they are all either .png or .jpg so I imagine you would not compress much anyway.
Does anyone know why the Google tool would be telling me to compress my "resources" when my site seems to already be compressed?