FREN

#FF00AA


4 dec. 2009

“Google DNS”

Half a second delay caused a 20% drop in traffic [on Google]. Half a second delay killed user satisfaction. […]

This conclusion may be surprising — people notice a half second delay? — but we had a similar experience at Amazon.com. In A/B tests, we tried delaying the page in increments of 100 milliseconds and found that even very small delays would result in substantial and costly drops in revenue.

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