This is an area I haven't really done much in - both on my site or elsewhere. I generally let Netlify worry about the hosting/caching/etc for my site. But one of the first improvements that caught my eye was the ability to add caching in Edge Functions.
Looks simple enough, but what I really like is that redeploying your site automatically invalidates the cache. Also supported is SWR, which if I read right, lets you return a cached response while the code figures out new data for future requests.
Netlify followed up this announcement with news of a Purge API which details how you can use tagging and an API for further control of the cache.
[
Collection
]
[
|
...
]