What to change
Separate first-arrival and repeat-visit conditions. Ask the supplier to show both using the same representative page and explain which optimisations affect each case. A warm-cache result may be valid for returning users but should not stand in for acquisition traffic. The acceptance evidence should state the cache condition explicitly and include an external fresh-session check after deployment, since local developer caches can hide missing or stale public assets.
A worked example
Illustrative example
Illustrative test: A new browser profile and a returning session open the same guide.
How to check the result
Both experiences are described accurately and the claimed improvement names its relevant condition.
A mistake to avoid
Clearing only one cache layer may not reproduce a genuinely fresh arrival.
Your action checklist
Use these checks to prepare a discussion with your team or supplier. Tick a check when you have recorded the decision or evidence, rather than when a feature has simply been promised.
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Further reading
These primary sources provide additional context for the project decisions above.
Related decisions
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