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Cloudflare D1 Sharding Past the 10GB Limit

Published Jul 24, 2026

D1 caps at 10GB with one sequential writer. Scale past it via tenant sharding: routing code, zero-downtime rebalancing, and cross-shard query strategies.

cloudflare d1 database sharding

Mastering the Durable Objects overloaded Error: Avoiding the 1,000-Requests-Per-Second Soft Limit and the Single-Thread Bottleneck

Durable Objects overloaded: The 1,000 req/s Limit

Published Jul 24, 2026

Cloudflare Durable Objects hit a 1,000 req/s soft limit, serialize on one thread, and can double-charge payments if alarm() retries aren't idempotent.

cloudflare durable-objects scaling performance

Cutting Real-Time Server Costs by 90% with the Durable Objects WebSocket Hibernation API

Durable Objects Hibernation API Cuts Costs 90%

Published Jul 24, 2026

Standard WebSockets keep billing Durable Objects GB-s even when idle. Hibernation API migration cut simulated costs by 90.6% in a pricing test.

cloudflare durable-objects websocket cost-optimization

Cloudflare Workers vs AWS Lambda Cost Comparison

Published Jul 24, 2026

Workers beats Lambda past ~5.5M requests/month for Flutter backends — real costs from 1M to 100M requests/month, API Gateway trap included.

cloudflare workers aws-lambda cost-optimization

Cloudflare R2 vs S3 vs Firebase Storage: $0 vs $90 vs $108 for 1TB of Downloads a Month — Choosing Storage by Egress Cost

R2 vs S3 vs Firebase: $0 vs $90 vs $108/TB

Published Jul 24, 2026

Storage cost barely differs, but egress does: R2 is $0, S3 ~$90, Firebase ~$108 per 1TB downloaded monthly. Real pricing compared for image-heavy apps.

cloudflare r2 s3 cost-optimization