Simon Hearne • 2/16/2022

Survivorship Bias in Web Performance

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This article discusses survivorship bias in the context of web performance, illustrating how analytics can be misleading by only capturing data from successful users. It uses historical examples like YouTube's Project Feather and WWII aircraft armor analysis to argue that the worst user experiences (e.g., phantom bounces) are often missing from data, leading to flawed optimization decisions. It also touches on Google's research into measuring page abandonment before load as a new performance metric.

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#user experience #web performance #frontend optimization
Survivorship Bias in Web Performance

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