What types of files do you need and which do not need to be compressed using DEFLATE when served by the server?

Question

Apache HTTP Server

What types of files should and should not be compressed with mod_deflate when served by the Apache server?

Answer 1

List of MIME-types to be compressed:

application/atom+xml
application/javascript
application/json
application/ld+json
application/manifest+json
application/rss+xml
application/vnd.geo+json
application/vnd.ms-fontobject
application/x-font-ttf
application/x-web-app-manifest+json
application/xhtml+xml
application/xml
font/opentype
image/bmp
image/svg+xml
image/x-icon
text/css
text/plain
text/vcard
text/vnd.rim.location.xloc
text/vtt
text/x-component
text/x-cross-domain-policy
text/html
text/cache-manifest

Source: server-configs-nginx