UX and UI get thrown around constantly in conversations about websites. They're often used interchangeably, which drives designers slightly mad, and they're often treated as optional extras, which drives everyone slightly mad.
Neither of those things is accurate. UX and UI are distinct, they're both essential, and understanding the difference even as a non-designer will make you a much better client and lead to significantly better websites.
UX is how it works. UI is how it looks.
That's the short version. UX (user experience) is concerned with the entire journey a person takes through your website. What path do they follow? Where do they get confused? How many clicks does it take to get from "I'm interested" to "I've made contact"? Is information where people expect to find it? Does the site work the same way someone's brain already works?
UI (user interface) is the visual layer that sits on top of that. The choice of colors, the style of buttons, the typography, the icons, the spacing between elements. UI is what makes something feel polished and intentional rather than assembled from default settings.
Good UX with bad UI gives you a website that works but feels unpleasant and untrustworthy. Good UI with bad UX gives you something beautiful that people can't actually use. Both matter. They're just doing different jobs.
The UX part most websites skip
Real website UX design starts with research. It starts with asking questions like: who is actually coming to this website? What are they trying to do? What do they already know when they arrive, and what are they confused about? What's the one thing they need to find quickly?
Most website projects skip this completely. They jump straight to "what should the homepage look like," which means they're making design decisions without the information that would make those decisions good. The result is a website built around what the client thinks their users want, rather than what users actually need and those two things are frequently quite different.
Even some basic user research, talking to five or ten real customers about how they currently find and evaluate businesses like yours changes the design decisions dramatically. It's worth doing.
Why navigation is a UX problem, not just a design choice
The navigation menu looks like a UI decision. But it's actually mostly a UX decision. The order of items, the labels used, the hierarchy of pages, all of that is about how users mentally model your business and where they expect to find things.
A classic mistake: labelling things based on internal company logic rather than visitor logic. You call it "Solutions" because that's how your team talks about services. Your visitor calls it "services" and can't find what they need. That's a UX failure dressed up in navigation.
Good UX on navigation means using the words your customers actually use, putting the most important things in the most visible places, and not making people hunt.
What UI actually does for conversions
Beautiful UI isn't vanity. It's a signal. When a website looks professionally designed, when there's clear visual hierarchy, consistent typography, intentional use of color, buttons that look like buttons - people feel more comfortable. They're more likely to trust. And they're more likely to convert.
The psychological principle underneath this is fairly simple: if a company has invested in how their website looks, the assumption (usually correct) is that they're a competent, established business. If the website looks cobbled together, the question in the back of the visitor's mind is whether the actual products or services are the same.
UI is doing trust-building work, constantly, without anyone consciously noticing.
The collaboration problem
In practice, UX and UI often get assigned to the same person, which is fine - many designers work across both. But the problems come when neither gets proper attention. When a project goes straight from "we need a website" to "here's the homepage design" without any user thinking in between.
The team at Mittal Technologies approaches this by treating website UX design questions as the starting point for every web project - what is this website for, who is it for, and what does success look like for a real visitor? The UI decisions that come after are better because of that foundation.
It sounds like a small thing, asking those questions first. In practice it changes everything.