On 3/15/07, Dan Jacobson <jidanni(a)jidanni.org> wrote:
Say, do the boilerplate images always present on every
Mediawiki page
have enough Expires and/or etc. headers to keep them cached around the
network for a long time? (Can't tell here offline with images turned
off anyway). Seems like optimizing that would need messing with the
apache etc. configuration as it is beyond what one can do with php as
they are <img src=...>.
WMF images are generally served with instructions to cache for 30
days, IIRC. Nevertheless, a fairly large percentage of hits are cache
misses for the images, is my impression. Cache-Control can specify
maximum cache ages, but not minimum.