network.liucao.me
AWS networking notes & benchmarks
AWS Region-to-Region Latency Matrix
EN
Every commercial AWS region pinging every other — 35 × 35 = 1,225 cells, hoverable heatmap with p50 / p99 toggles.
ZAZ Cross-Region Latency
EN
Round-trip time from eu-south-2 (Aragón) to 34 regions — p10 / p50 / p99, sortable, with sync-replication picks and data-source methodology.
S3 Download Acceleration Benchmark
EN
Parallel Range GET vs baseline — 2 GiB download from eu-south-2, eu-central-1, eu-north-1. Up to 13x faster.
南美访问西班牙 S3 加速方案
CN
CloudFront 透传 / Signed URL / CRR / VPN + Interface Endpoint — 四种方案对比与实测。
S3 + CloudFront CORS 配置
CN
什么时候需要 CORS、配在哪里（CF Response Headers Policy vs S3 CORS）、常见坑。