Great collection of the basic principles for creating a good, functional website. For me, composition is probably one of the most important things, and it’s mentioned here too. This is where everything comes together into one picture, because even the best and most carefully thought-out elements might not work on their own. I’d also add responsive design to the list. Everything mentioned above should work not just on desktop, but also adapt properly to mobile screens and basically any screen or format. This is especially obvious in niches where the way things are laid out visually directly affects conversion. I think everyone knows raffle websites developed by companies and developers like https://www.design-hero.com/web-design/raffle-websites/, which are definitely worth checking out. Design Hero has a pretty good breakdown of how these principles are used specifically for raffle websites in the UK. The whole point of their development isn’t just to make a colorful, themed raffle website, but to make one that actually gets the visitor where they need to go, so, for example, they see the countdown timer and the ticket purchase button before they decide to close the tab. The point about rules is also spot on. Professional web designers know the rules well enough to break them on purpose when it actually works for the idea.