I'm looking to do some analysis on HTTP requests that occur between clients and web servers. Are there any recent (at least within last 4 years) publicly available data sets of web proxy forward cache logs, such as those recorded by a Squid proxy? I'm most interested in forward cache HTTP log data - so coming from a cache that sits between many clients and many servers. I'd have an auxiliary interest in reverse proxy data, such as a proxy that serves up HTTP responses on behalf of a single server, though a proxy log that spans many clients and many servers would be preferable.
I'm after basically as much data as I can get and the larger the number of clients represented in the data the better. I imagine universities/large corporations might have such data logs, though haven't been able to find any publicly available (and hence this question).
Thanks.