A sprint ticket says “add performance monitoring,” and the pull request that closes it often ships one of two artefacts: a Lighthouse CI gate on preview URLs, or a screenshot from PageSpeed Insights t

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In the end, performance monitoring should have a measurable ROI
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Proof Over Promises.
The one sentence test is a good filter: if you can't point to the URL list, the schedule, the budget language and the alert path, it's a diagnostic habit. The point about homepage-only coverage matters too, since pricing and checkout templates are usually where a regression costs money.