Can proxy_cache gzip cached content?

rmalayter nginx-forum at
Wed Feb 15 14:55:17 UTC 2012

bard Wrote:
> Thanks for the pointers. As I wrote, I'd rather
> avoid gzipping in the
> backend, but if that's the only option so be it.

There's no reason the "backend" for your caching layer cannot be another
nginx server block running on a high port bound to localhost. This
high-port server block could do gzip compression, and proxy-pass to the
back end with "Accept-Encoding: identity", so the back-end never has to
do compression. The backend server will have to use "gzip_http_version
1.0" and "gzip_proxied any" to do compression because it is being
proxied from the front-end.

There might be a moderate performance impact, but because you're caching
at the "frontmost" layer, the number of back-end hits should be small.

Also note there may be better options in the latest nginx versions, or
by using the gunzip 3rd-party module:

With the gunzip module, you can configure things so that you always
cache compressed data, then only decompress it for the small number of
clients that don't support gzip compression.


Posted at Nginx Forum:,222382,222436#msg-222436

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