EC2
7 posts
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Reserved Instances vs Savings Plans (2026)
Savings Plans cannot reserve capacity or be resold. Two things Reserved Instances still do, and why AWS applies Reserved Instances first.
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NLB pricing: why TLS listeners cost more (2026)
NLB pricing: a TLS listener gets 33x fewer active connections per NLCU than TCP, so AWS's own example bills the same traffic at $25.92 vs $1.55 a month.
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Elastic IP and public IPv4 pricing (2026)
A public IPv4 is $0.005 an hour, and idle addresses cost exactly the same as in-use ones. Plus AWS's formula for whether a NAT Gateway is cheaper.
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EC2 Capacity Reservations: unused cost (2026)
An EC2 Capacity Reservation bills at full On-Demand whether used or not, and the idle half arrives as UnusedBox. Plus who pays when it is shared.
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Does a stopped EC2 instance cost money? (2026)
A stopped EC2 instance bills no compute. The EBS volume, any Elastic IP and any Savings Plan under it do, and hibernating costs more.
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AWS Compute Optimizer cost in 2026
AWS Compute Optimizer is free, but its 93-day lookback is $0.25 per instance a month and memory visibility costs $0.30 more. Its own example halves its total.
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ALB pricing: what an LCU actually is (2026)
An ALB LCU has four dimensions and AWS charges only for the largest. Which one is yours, and why the eleventh listener rule starts a meter.