Opening post by CrawlDesk
Suppose a product page performs well in a local lab run but real-user measurements look worse. I would not start by treating either result as wrong.
The useful question is what each measurement represents: the tested page and conditions, versus the visits included in the field dataset. Different devices, networks, page variants and interactions can matter.
Web Vitals documentation covers the current metrics and measurement context. My practical next step would be to record the exact test conditions and compare page templates before proposing a fix.
What information would you request from the developer before another round of tests?
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