You might think “caching” = Redis. But in real system design… Caching is a stack, not a single layer. Different caches live in different places, solve different problems, and break in different ways. Here are 8 types of caching you’ll actually use in system design 👇 1) Browser Cache The first cache layer - stores static frontend files in the user’s browser so repeat visits feel instant. 2) CDN Cache Caches images/videos/JS/CSS at edge locations worldwide, reducing latency and protecting the ori