A client once told us his ads bring plenty of traffic but no sales, and the problem must be the marketer. We reviewed the site and found the "complete order" button sat below the fold on mobile and required scrolling — nobody found it. Not a marketing problem. A UX problem.
Here are the mistakes we see most:
1. The primary action isn't obvious
Every screen needs one clearly most-important action. Five buttons in the same color and size makes users hesitate — and hesitation closes tabs.
Instead: one prominent primary button in your brand color, everything else quieter and secondary.
2. Asking for data you don't need
A signup form requesting first name, last name, phone, address, company and job title — to join a newsletter. Every extra field lowers completion.
Instead: ask only for what you need right now. Collect the rest later, when it actually matters.
3. Error messages that blame without helping
"Invalid input" — where? What's wrong? The user is left guessing.
Instead: put the message next to the field and say exactly what's expected: "Phone must start with 01 and be 11 digits."
4. No loading state
The user hits "save," nothing happens for two seconds, so they press again and again — and the order is submitted three times.
Instead: disable the button immediately and switch it to "Saving…" with a spinner.
5. Designed desktop-first
Most of your visitors are on mobile. When a design is made for a large screen and then "adjusted" for mobile, the result is cramped.
Instead: start with mobile. If the small screen works, the large one is easier.
6. Tiny tap targets
A 20-pixel button on mobile. Fingers are bigger than that. Users mis-tap and get annoyed.
Instead: at least 44 pixels in each direction, with enough spacing between elements.
7. No clear way back
The user is four screens deep with no way back. Or they hit browser-back and lose everything they typed.
Instead: clear navigation breadcrumbs and auto-saved drafts in long forms.
8. Low-contrast text
Light grey on white looks "elegant" on the designer's monitor and is unreadable on a phone in sunlight or to anyone with reduced vision.
Instead: at least a 4.5:1 contrast ratio for body text. Free tools measure it in a second.
9. Ignoring Arabic text direction
An Arabic site built as a mirrored English template: icons facing the wrong way, broken numerals, strange spacing.
Instead: native RTL design from the start, not a flipped translation. And test with real long Arabic text, not lorem ipsum.
10. Speed
This isn't only a technical line item, it's experience. Every second of delay measurably raises bounce, and users don't wait.
How to find these on your own site
The cheapest useful test: sit next to three people who've never seen the site, give them one specific task ("order this product"), and don't help them. You'll see every problem with your own eyes in half an hour.
Bottom line
UX isn't cosmetic luxury — it's the difference between a visitor who buys and one who leaves. Check these ten against your site now and you'll find at least three. And if you want a professional pass, we run UX audits with findings ranked by conversion impact.