Network cost
19 posts
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Site-to-Site VPN pricing: $36 is 7% (2026)
An AWS Site-to-Site VPN connection is $36 a month, but in AWS's own example that is 6.87% of the bill. On a Transit Gateway the tunnel is metered three ways.
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AWS Direct Connect pricing in 2026
A 1 Gbps AWS Direct Connect port is $219 a month and repays itself at 3,257 GB of data transfer out. The break-even table for every port speed, from AWS rates.
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AWS Shield Advanced pricing and cost (2026)
AWS Shield Advanced is $3,000 a month on a 1-year term. Its base WAF inclusion only matches that fee near 5 billion requests. DDoS credits pay only Shield.
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AWS Global Accelerator pricing in 2026
An idle AWS Global Accelerator costs $25.20 a month, and DT-Premium is charged on top of data transfer out, not instead of it. Rates by region.
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CloudFront pricing: the S3 break-even (2026)
CloudFront is $0.085 per GB from US edges against $0.09 direct from S3, so CloudFront pricing undercuts S3 egress in two of eight regions and loses in six.
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S3 replication pricing: CRR, SRR, RTC (2026)
S3 replication bills a PUT per object plus $0.020/GB between Regions, so objects under 262 KB cost more in requests than transfer. SRR, RTC and Batch priced.
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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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AWS WAF pricing and what it costs (2026)
Ten million requests cost $6. The nineteen WAF rules inspecting them cost $19. Plus two overage meters that live in a footnote.
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What a NAT Gateway actually costs (2026)
The two meters a NAT Gateway bills, why one zonal gateway across three AZs costs more, and what regional mode changed in 2025.
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VPC endpoint cost: gateway vs interface (2026)
VPC gateway endpoints for S3 and DynamoDB carry no charge. Three documented ways one silently stops covering your traffic.
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What VPC Flow Logs actually cost (2026)
VPC Flow Logs bill the tiered Vended Logs meter. The aggregation interval AWS overrides on Nitro, and records you pay for twice.
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What Route 53 actually costs (2026)
Route 53 hosted zones are not prorated, alias queries to AWS services are free, and a Resolver endpoint is about $182 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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AWS data transfer out pricing in 2026
AWS data transfer out is $0.09 per GB after 100 GB free, but the blended egress rate rises until 10 TB a month and the $0.05 floor is never reachable.
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GuardDuty bills flow logs you never made (2026)
GuardDuty analyses an independent duplicate stream of VPC Flow Logs, so deleting your own changes nothing. Plus the per-Region trial trap.
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What cross-AZ data transfer costs (2026)
Cross-AZ transfer is $0.01 per GB each direction, so $0.02 a round trip. What is free, what a public IP costs, and the usage type that changed in 2025.
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Transit Gateway pricing and costs (2026)
Transit Gateway attachment hours land on the VPC owner, not the gateway owner, and three types bill three different accounts.
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What is EC2 - Other in Cost Explorer? (2026)
EC2 - Other is not a service. What the bucket holds, the usage types that break it down, and why it never appears on your invoice.
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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.