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Network Cost Forensics: Tracing Data Transfer Charges Using VPC Flow Logs and DNS Query Correlation

AWS (re:Invent) · Jun 04, 2026 · Engineering Insights

AWS engineers demo a methodology to trace surprise data transfer charges using VPC Flow Logs and DNS query correlation.

“you get an AWS bill and you look at your data transfer charges and you're like, "Why is it so high?”

An AWS networking show walks through 'network cost forensics'—a methodology for tracing data transfer charges on an AWS bill to specific resources using VPC Flow Logs and DNS query correlation. The content is about cloud cost optimization and networking, with no meaningful AI industry signal.

aws networking cloud-cost

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