If you are commissioning a website rather than building one, you do not need design theory. You need to know which decisions actually change whether the site brings you enquiries. A small set of principles does most of that work: clarity about what you sell, structure decided before styling, a hierarchy that guides the eye, fast loading, accessible defaults, and consistency across every page. Almost everything else is taste, and taste is the part people argue about longest while it matters least.

Clarity of the offer comes before everything else

Nielsen Norman Group's research on how long users stay on web pages found that people often leave within 10 to 20 seconds, and that pages with a clear value proposition hold attention for much longer. That single finding should shape your homepage. Within the first screen, a visitor needs to understand what you do, who you do it for, and what happens if they get in touch. Abstract slogans push that understanding further down the page, and most people never get there.

A useful test: cover the logo and the imagery, read only the headline and subhead, and ask whether a competitor could put their name on it. If they could, the copy is not doing its job yet.

Structure before style

The most expensive rework happens when a site is styled before anyone agreed what it needs to say. Decide the page list, the order of sections on each page, and the rough content for each section first. Only then does it make sense to talk about typography, colour or motion. Structure is cheap to change in a document and costly to change in a finished build.

This is also the stage where you catch the classic problem of a site organised around your internal departments rather than around the questions a buyer actually asks.

Hierarchy is a ranking, not decoration

Every section should have one idea that clearly outranks the others, expressed through size, weight, spacing and contrast. If three elements compete for attention, none of them wins. Write headings so that someone who reads only the headings still understands the argument of the page, because a large share of visitors will read exactly that and nothing more.

Familiar patterns beat clever ones

Google research on visual complexity and prototypicality found that people form aesthetic judgements about a page within the first 50 milliseconds, and that designs which are visually simple and look typical for their category are rated most appealing. Highly complex layouts score worse even when the design is familiar.

In practice that means navigation where people expect it, a layout that reads in a predictable order, and originality spent on the writing, the photography and the proof rather than on making people relearn how a website works.

Speed is a design decision, not a developer problem

Most slow websites were made slow at the design stage: an autoplaying hero video, four custom font weights, uncompressed background images, a carousel, and a stack of third party embeds. Google's Core Web Vitals thresholds give you a target to hold a design against. A good experience means Largest Contentful Paint within 2.5 seconds, Interaction to Next Paint of 200 milliseconds or less, and Cumulative Layout Shift of 0.1 or less, measured at the 75th percentile of real visits on mobile and desktop.

Ask for those numbers before signing off a design direction, not after launch.

Accessibility is a baseline, not an upgrade

The most common failures are also the easiest to avoid. WCAG's contrast minimum asks for a ratio of at least 4.5:1 for normal text and 3:1 for large text, where large means roughly 24px, or 18.5px when bold. Add visible keyboard focus states, real text instead of text baked into images, meaningful alt text, and form labels that stay visible once someone starts typing. Pale grey body copy on white is the single most frequent thing we are asked to fix on otherwise attractive sites.

Consistency is what makes a site look expensive

A limited type scale, a spacing scale used everywhere, a small colour set and components reused across pages will do more for perceived quality than any single striking section. Inconsistency reads as carelessness, and buyers of premium services notice it even when they cannot name it.

One obvious next step on every page

Each page should have a single primary action, repeated where it makes sense but never competing with three others. Keep enquiry forms short, ask only for what you genuinely need to reply, and make the contact route visible without a hunt. A site that is admired but never contacted has failed at the only measure that counts.

How to review a design you have been shown

• Read only the headline and subhead. Is the offer unmistakable?

• Read only the H2s. Do they tell a coherent story?

• Ask what the primary action is on each page. There should be one.

• Check body text contrast, tap target sizes and focus states.

• Ask what the design will cost in load time and how that will be measured.

• Look at three pages side by side. Do they look like the same website?

We build sites this way at Urest, a Certified Framer studio working with B2B and premium service brands across Europe and the US, with design, development and growth handled by the same senior team. If you want a second opinion on a site you are planning or already running, book a discovery call and we will go through it with you.