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I wonder when will people learn to always set up at least microcaching, because you can never know when the ~slashdot effect~ hug of hackernews will hit you.

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Question, if using NGINX with static HTML would caching still be necessary?

I'm assuming something like wordpress where it hits the database on every request is where you'd want microcaching.

Probably not, although caching in memory is still faster than disk access. More commonly sites that fail under load are dynamically building pages, hitting DB, etc. though.

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