ISP-side image caching comes into it, perhaps? After
all, the content
of pages changes a lot faster than the images they include do...
Actual upload.wikimedia.org requests account for (...checking) 46% of
the HTTP requests that hit Wikimedia's servers. That doesn't suggest
that the difference could be caused by external caching.
Milos Rancic <millosh(a)gmail.com> wrote: