Amazon S3 access log
Request-log-analyzer can parse Amazon S3 access log files. You can pass --format amazon_s3 to your command line invocation to select this format.
Enabling an S3 access log
By default, Amazon has disabled S3 access logs. To enable and configure logging, check the S3 documentation on Server Logging
Note that log files require storage on S3 and they need to be transfered to be analyzed, so there is a cost involved.
