You know your website inside out — which is exactly why you're the worst person to judge whether it's easy to use. User testing fixes that: you watch real people try to use your site, and the places they hesitate, misclick, or give up show you precisely what's costing you enquiries.
The best part for a small business: you don't need a lab, a budget, or a research team. Testing with just five people uncovers around 85% of a site's usability problems. This guide explains what user testing is, the methods that work, and how to run one this week.
What user testing actually is
User testing (also called usability testing) is the practice of observing real people as they use your website to complete a task. You're not asking their opinion on the colours — you're watching their behaviour. Can they find what they came for? Do they know what to click next? Where do they pause and frown?
It's the reality check on your UX (user experience). You can design the most logical journey in the world, but the only way to know if it works is to watch someone who isn't you try to use it. People do things you'd never predict — and every one of those surprises is a customer you might be losing.
How many people do you actually need?
This is where most business owners over-think it. You don't need hundreds of testers. The Nielsen Norman Group's well-known research found that testing with just five users uncovers roughly 85% of usability problems — after that, you mostly see the same issues repeat.
The smart approach isn't one big study. It's to test with five, fix what you find, then test again with five more. Three small rounds catch far more than a single large one — and you're improving the site between each.
The main methods — and when to use each
Moderated testing
You watch the person in real time — in the room or over a video call — and ask follow-up questions when they hesitate. Richest insight, and perfect for a first round. Great for small businesses who can grab five people and a screen-share.
Unmoderated testing
The person completes tasks alone while a tool records their screen and voice for you to review later. Faster and easier to scale than moderated, with slightly less depth. Good for a second opinion or when schedules don't line up.
5-second / first-impression test
Show someone a page for five seconds, then ask what the business does and what they'd do next. Brilliant for checking whether a homepage or landing page communicates instantly.
A/B testing
Quantitative, not qualitative: show two versions of a page to many live visitors and measure which converts better. Use it to confirm whether a change you made from user testing actually improved results at scale.
User testing and A/B testing aren't rivals — they're a pair. User testing tells you what to change and why; A/B testing proves whether the change worked across real traffic. This matters most on pages with a single job, like a landing page, where small improvements compound.
How to run a user test this week
Here's a simple, almost-free process you can run yourself:
Pick one or two realistic tasks
Base them on what real customers do: 'find out how much X costs and start an enquiry', or 'check whether you cover my area and book a call'. Keep instructions goal-based — don't tell them where to click.
Recruit five people who resemble your customers
They don't have to be strangers — friends-of-friends outside your business work fine, as long as they haven't seen the site. Avoid your own team; they know too much.
Ask them to think aloud
The magic instruction: 'please say what you're thinking as you go'. You want to hear the hesitation — 'where's the price?', 'is this the right button?' — in real time.
Watch, and stay quiet
Resist the urge to help or explain. Every time you'd jump in to clarify is a place a real visitor would be stuck with no one to ask. Just note it.
Write down every point of friction
Pauses, wrong turns, re-reading, backtracking, giving up. Patterns across testers are your priority fixes.
Fix, then test again
Make the changes, then run another five testers. Confirm the problem is gone — and catch the next layer of issues the first fixes revealed.
What the results pay back
Usability isn't a nice-to-have — it's one of the highest-return things you can spend on. Forrester's widely-cited research found that every £1 invested in user experience can return up to £100. User testing is how you find the specific issues standing between your visitors and that return. For a small business, it typically shows up as more enquiries from the same traffic — because fewer people give up halfway.
How WebSP builds testing into the work
Every site we build from £800 is designed around your customer's journey and checked on real devices before launch — the structure and the interface together, not a template's guesswork. If you've got an existing site that looks fine but isn't converting, that's almost always a usability problem a short round of testing will surface — and we can help you find and fix it.
Frequently asked questions about user testing
What is user testing?
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How many users do you need for usability testing?
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What's the difference between moderated and unmoderated testing?
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How do I run a user test on a small budget?
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How is user testing different from A/B testing?
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What tasks should I ask users to complete?
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The bottom line
You can't see your own website the way a first-time visitor does — but you can watch one try. Five testers, a realistic task, and an afternoon will reveal most of what's quietly costing you customers, for next to nothing. Analytics tells you that people are leaving; user testing tells you why — and that's the half you can actually fix.
Interested?
Site looks fine but not converting?
That's almost always a usability problem — and a short round of user testing will surface it. We build custom, journey-first websites from £800, tested on real devices before launch. Tell us what's happening and we'll take a look.