The Cache & Edge Journal is an independent engineering desk that maps how caching, CDNs, and load balancing actually behave in production.
Every entry is published as a policy card: the cache layer, the levers that move the hit rate, the invalidation strategy, TTL guidance, the real trade-off being made, and the effect on cost or latency — stated before the prose, so two approaches can be compared on the same card.
We work from official project documentation and IETF specifications, describe mechanisms rather than vendors, and present trade-offs honestly without promising performance numbers.