Site performance is potentially the most important metric A Fragment by Kealan Parr css-tricks.com Site performance is potentially the most important metric. The better the performance, the better chance that users stay on a page, read content, make purchases, or just about whatever they need to do. A 2017 study by Akamai says as much when it found that even a 100ms delay in page load can decrease conversions by 7% and lose 1% of their sales for every 100ms it takes for their site to load which, at the time of the study, was equivalent to $1.6 billion if the site slowed down by just one second. performanceuxmetrics
Monkeys testing random designs A Tweet by Jared Spool twitter.com A/B testing is an effective approach to use science to design and deliver deeply-frustrating user experiences. A/B testing without upfront research is just random monkeys testing random designs to see which of those designs do “best” against random criteria. If drug testing was actually implemented like most A/B tests, you’d give 2 drugs to 2 groups of people and pick the “winner” by whichever group had fewer deaths. uxresearch