Load testing a checkout for Black Friday
What to test, what to break on purpose, and what to have ready before the traffic arrives.
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Notes from the engineers who build and run commerce systems.
What a 0.8s LCP is actually worth in revenue
Speed work is easy to justify badly. Here is how to model it with your own numbers instead of someone else’s case study.
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Replatforming without losing a single URL
A redirect map is not a spreadsheet you write the week before launch. Here is the process we use.
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