Validation: we always prefix our assets with something effectively corresponding to a deployment ID (usually a hash of the content being deployed). It's a lot easier than trying to manage it on a per-asset level, and makes it really easy to clean up old assets.
Response times: you might use something like Gomez to see your response time waterfall from various locations throughout the world. It's all about the PoPs. Depending on how CF is routing your request, you (specifically) maybe going a little farther to hit your content.
Regarding invalidation; this is a non-problem if you always keep unique URLs.
Interesting note there about a local Nginx vs. CF. I'm amazed that the difference was 70ms vs 250ms. However, the case is certainly worth keeping in mind, but I suspect it's rare. Most of my sites are hosted in the UK but the audience is mainly USA.
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Validation: we always prefix our assets with something effectively corresponding to a deployment ID (usually a hash of the content being deployed). It's a lot easier than trying to manage it on a per-asset level, and makes it really easy to clean up old assets.
Response times: you might use something like Gomez to see your response time waterfall from various locations throughout the world. It's all about the PoPs. Depending on how CF is routing your request, you (specifically) maybe going a little farther to hit your content.
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Regarding invalidation; this is a non-problem if you always keep unique URLs. Interesting note there about a local Nginx vs. CF. I'm amazed that the difference was 70ms vs 250ms. However, the case is certainly worth keeping in mind, but I suspect it's rare. Most of my sites are hosted in the UK but the audience is mainly USA.