10 UX mistakes that quietly kill your website's conversions

Most websites don't fail loudly. They fail quietly — a visitor lands, hesitates, and leaves without telling you why. After running conversion audits across dozens of UK business sites, the same problems come up again and again. Here are the ten we see most, roughly in order of how much damage they do.

1. The homepage doesn't say what you do

You have about five seconds before a visitor decides whether to stay. If your headline is a slogan ("Empowering possibility") instead of a plain statement of what you do and who it's for, a chunk of your traffic bounces before reading anything else.

2. The call to action is timid, buried, or both

One clear next step, visible without scrolling, repeated as the page goes on. If your main button says "Submit" or lives only in the footer, you're making motivated people work to give you money.

3. Too many choices

Six menu items outperform twelve. Three services outperform nine. Every extra option splits attention and adds hesitation. The sites that convert best are ruthless about what they leave out.

4. No evidence

Claims without proof read as marketing. Numbers, named testimonials, recognisable logos, before-and-after results — specific evidence beats adjectives every time.

5. Forms that ask for too much

Every field you add to a form costs you completions. Ask for what you need to reply — usually a name, an email, and one question — and collect the rest on the call.

6. Slow pages, especially on mobile

Most of your visitors are on a phone, often on a patchy connection. Oversized images, autoplaying video and bloated scripts are conversion killers you can measure directly.

7. Hidden pricing signals

You don't have to publish a price list. But "from" figures, fixed-quote promises, or even a plain explanation of how pricing works all reduce the anxiety that stops people enquiring.

8. Journeys that dead-end

Blog posts with no next step. Service pages that don't link to each other. Thank-you pages that just say thanks. Every page should answer: what should this person do next?

9. Design inconsistency that erodes trust

Mismatched buttons, three shades of the same blue, wobbly spacing. Visitors can't name the problem, but they feel it — and it reads as "unprofessional" at the exact moment they're deciding whether to trust you.

10. Nobody has watched a real user try to use it

This is the root cause behind most of the list. Teams design for themselves, launch, and never watch a stranger attempt the journey. Five minutes of watching a real user is worth fifty internal opinions.

How to find out which ones apply to you

Some of these you can self-diagnose this afternoon: read your homepage headline out loud, count your menu items, fill in your own contact form on your phone. For the rest, a structured audit pays for itself quickly — our UX Conversion Audit reviews your key journeys in a week and hands you a prioritised fix list, biggest wins first.