UX
Removing stuff is never obvious yet often better - https://www.gkogan.co/removing-stuff - https://news.ycombinator.com/item?id=41353328
https://www.pencilandpaper.io/articles/ux-pattern-analysis-loading-feedback
In Defense of Text Labels - https://www.chrbutler.com/in-defense-of-text-labels - https://news.ycombinator.com/item?id=43142989
Speed
Over 50% of users abandon a website if it takes longer than 3 seconds to load. // 53% of visits are likely to be abandoned if pages take longer than 3 seconds to load. Source: https://www.thinkwithgoogle.com/intl/en-154/marketing-strategies/app-and-mobile/need-mobile-speed-how-mobile-latency-impacts-publisher-revenue/
From https://docs.astro.build/en/concepts/why-astro/#fast-by-default
- Every 100ms faster → 1% more conversions (Mobify, earning +$380,000/yr) - https://web.dev/why-speed-matters/
- 50% faster → 12% more sales (AutoAnything) - https://www.digitalcommerce360.com/2010/08/19/web-accelerator-revs-conversion-and-sales-autoanything/
- 20% faster → 10% more conversions (Furniture Village) - https://www.thinkwithgoogle.com/intl/en-gb/marketing-strategies/app-and-mobile/furniture-village-and-greenlight-slash-page-load-times-boosting-user-experience/
- 40% faster → 15% more sign-ups (Pinterest) - https://medium.com/pinterest-engineering/driving-user-growth-with-performance-improvements-cfc50dafadd7
- 850ms faster → 7% more conversions (COOK) - https://web.dev/why-speed-matters/
- Every 1 second slower → 10% fewer users (BBC) - https://www.creativebloq.com/features/how-the-bbc-builds-websites-that-scale
From For Impatient Web Users, an Eye Blink Is Just Too Long to Wait
People will visit a Web site less often if it is slower than a close competitor by more than 250 milliseconds
From How Webpage Load Times Relate to Visitor Loss
Tests done at Amazon in 2007 revealed that for every 100ms increase in load time, sales would decrease 1%.
Passwords
https://www.nngroup.com/articles/password-creation/
https://baymard.com/blog/password-requirements-and-password-reset