Notes.
Short technical notes on the AWS questions that come up in real estates: what the evidence shows, what it does not, and what to check next.
Ten AWS cost checks worth doing this week07 Oct 2026“The AWS bill changed” is not a useful investigation question06 Oct 2026Share AWS cost evidence without sharing customer identifiers19 Aug 2026Put the evidence boundary before the model22 Jul 2026Keep the evidence inside the enterprise20 Jul 2026When the billing display is wrong18 Jul 2026Mean time to explanation18 Jul 2026Open the EC2-Other drawer25 Jun 2026CUR 2.0 and FOCUS answer different questions20 Jun 2026Enable AWS Data Exports19 Jun 2026Start broad in Cost Explorer18 Jun 2026A NAT gateway charge is not a traffic path04 Jun 2026
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