Amazon S3 Logs

http Log Viewer can be used to parse Amazon S3 bucket log files using the following syntax:

LogFormat "%BO %B %t %h %l %u %O %k \"%r\" %>s %EC %b %OS %T %TAT %{Referer}i %{User-Agent}i %VID" S3

This format has to be entered in the custom log section.Steps:

Download your log files from Amazon
Open http Logs Viewer
Click on File…Add Access Log
Select the log file
Then enter the log format seen above (as is) in the Custom field.
Hit OK

Enjoy Parsing and Analyzing!
More information on this log format can be found here.

Best €12 I've spent all year. I found widespread click-fraud on a PPC campaign I was running. The Campaign Monitor was reporting only the bona-fide clicks based on geo-targeting that I'd selected, but they were milking my account of large amounts of small amounts from many more countries that were not authentic clicks and not the geo-targeting I wished. It was only when I started using Apache log viewer that I was able to spot the problem and identify the scale. I contacted the PPC provider and eventually they admitted that my campaign settings had been extended by them! Saved me a lot of time and money. Thanks.

Tom