I like the idea of LocalCDN not necessarily for privacy reasons, but for performance. Now that shared browser caches are a thing of the past, it feels incredibly wasteful how often we have to download common libraries and fonts.

I'd like to keep 500MB or so of data locally and just have it replace the network requests when they're made. I'd be curious how much data that might end up saving after a month or year of browsing.

Sounds like you could be fingerprinted by what's in your cache

Only that I have an extension installed. Presumably the libraries cached would be the same for all users. So assuming an install base of >10,000, I'm not particularly bothered about it.

I'm more interested in techniques for faster page loading.

Thankyou, I will check this out.