Compressed page streams detection and optimization

Maxim Dounin mdounin at
Thu Sep 12 11:54:13 UTC 2013


On Thu, Sep 12, 2013 at 06:07:05AM -0400, dfumagalli wrote:


> What happens if Nginx gets served by PHP-FPM a compressed page and maybe 1
> compressed .css file + 5 uncompressed .css files and 6 .js?


> Or does it - hopefully - detect an incoming stream "magic numbers" or
> headers and transparently skips re-compression / wrapping?

Yes, it checks if a response is already compressed based on the 
Content-Encoding header, and only compresses the response if it's 
not.  It's usually enough to just configure/enable gzip at http{} 
or server{} level.

Maxim Dounin

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