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The official documentation for mod_deflate works, and gives me nice results so far on my serveR. Are there any changes anyone suggests for use on a production machine?

http://httpd.apache.org/docs/2.2/mod/mod_deflate.html#recommended

<Location />
# Insert filter
SetOutputFilter DEFLATE

# Netscape 4.x has some problems...
BrowserMatch ^Mozilla/4 gzip-only-text/html

# Netscape 4.06-4.08 have some more problems
BrowserMatch ^Mozilla/4\.0[678] no-gzip

# MSIE masquerades as Netscape, but it is fine
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
# Don't compress images
SetEnvIfNoCase Request_URI \
\.(?:gif|jpe?g|png)$ no-gzip dont-vary

# Make sure proxies don't deliver the wrong content
Header append Vary User-Agent env=!dont-vary
</Location>
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It certainly won't hurt to use that in a production setup, but it looks pretty conservative, and is probably based on reality as it stood several years ago. I'm hoping the super-geniuses here will post an "optimal" mod_deflate configuration for today's world. –  Jed Daniels Jun 24 '10 at 16:59

1 Answer 1

up vote 2 down vote accepted

The tradeoff you have to make is time versus size. If you spend time changing the compression level, it might take a few milliseconds more to serve the page for a minimal benefit in making the compressed page smaller.

The defaults are fairly well balanced, handle 99% of the browsers correctly and are well thought out.

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sounds like a plan to use the defaults then! I've gotten great compression so far –  solsol Jun 25 '10 at 14:02

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