Does anyone know if there have been any changes in AOL's network these past two
months or so that would have an impact on hit rates logged for Web sites outside
their network? I know I've had to tweak journal analysis programs and sites in
the past in order to get more accurate hit rates from AOL, but I've seen an
abrupt drop in rates recently that I cannot immediately explain.
Also, if there is a resource somewhere that summarizes all the ways that various
ISPs goof around in ways that can cause hit rates to be less than
representative, I'd appreciate a pointer. I've mostly made modifications
empirically up to thise point (to account for proxies, caching, and so on, where
possible). AOL seems to be the single largest offender.