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Cloud & infrastructure · #cloudflare
When building Cloudflare Workers that need persistent state, decide between KV and Durable Objects. This guide compares consistency, latency, storage limits, pricing, and shows how to implement a counter with KV and a WebSocket session with a Durable Object.
Cloudflare Tunnel replaces inbound firewall exceptions with an outbound-only daemon. This post examines the architecture, a version-controlled replica setup, and the operational trade-offs before you commit.
Learn how to eliminate origin bottlenecks using Cloudflare Workers KV to store dynamic configuration and feature flags at the edge for sub-50ms latency.
When a Cloudflare Worker needs mutable state, pick the right storage: KV for global, eventually consistent caching; Durable Objects for strong consistency, low‑latency per‑instance state. This guide compares options, explains trade‑offs, and shows a concrete example with validation steps.
When Durable Objects lose state, lag, or lose updates, the culprit is often a mis‑configured key, cold start, or race condition. This guide walks through common symptoms, ordered checks, quick fixes, and escalation steps.
Learn how to run edge‑based A/B tests with Cloudflare Workers, see a concrete Worker example, and understand the CPU‑time and caching limits.
Cloudflare Workers KV provides low‑latency edge caching, but its eventual consistency model and plan‑dependent rate limits mean you must design around stale data and 429 responses. This article walks through the mechanics, limits, and quick verification steps.
Feature-flag lookups don't need an origin round-trip. Here's how to serve them from Cloudflare Workers KV, with a worked routing example and the consistency trade-offs you must design around.
Workers KV removes the origin round trip from session lookups, but its consistency model decides your logout behavior, your cache settings, and when you need Durable Objects instead.
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