I have a S3 bucket that I use to store images for a website I manage. The bill is usually about $1/month and I store about 12.5 GB on the service. It's never really been an issue before, but recently noticed the bill has shot up to ~$10-12/month. After some investigating, data transfer from US East (Northern Virginia) data transfer to Asia Pacific (Singapore) has dramatically shot up, to almost 500GB/month.
I've looked through the bucket and don't see anything unusual. It's largely just user avatars and photos. Is there anyway I can figure out what's been transferred at such a high rate?
Thanks.