Open your website on your phone. Right now. Not on your desktop computer — on your phone, the one your clients actually use.
Most tradespeople and small business owners design their site on a large screen. They check it on a large screen. They show it to friends and family on a large screen. Then their clients arrive on a 6-inch screen, on 4G, between two jobs or in a waiting room.
And that's when everything falls apart.
1. The numbers: who visits your site, and how
These aren't projections or global averages. This is the data I see on my clients' websites, via Umami Analytics, in north-east France.
65–75%
of traffic on a tradesperson's site comes from mobile (Umami data from my client projects)
90%+
mobile traffic on "near me" searches
53%
of visitors leave if the site takes more than 3 seconds to load
Google has been indexing "mobile-first" since 2021. Your mobile version is your site for Google. If it's slow, hard to read, or poorly structured, your entire visibility suffers — not just the phone experience.
On average 4G — typical of rural areas — a standard WordPress site takes 4 to 8 seconds to load. Visitors don't wait.
| Desktop | Mobile | |
|---|---|---|
| Share of tradesperson traffic | 25–35% | 65–75% |
| Average visit duration | 2–4 min | 45 s – 1 min 30 |
| Primary action | Compare, read | Call, locate |
The mobile visitor doesn't read your site. They scan it. They're looking for a phone number, an address, proof that you actually exist. And they do it in under a minute.
2. What your client sees on mobile (and what they want)
Your mobile client wants three things in five seconds:
Who you are — your trade + your city. "Plumber in Lyon", not an animated slider.
How to contact you — a clickable phone number. Not a 12-field form.
Proof that you're legitimate — photos of your work, client reviews. Not stock images.
What they don't want: a slider that takes 3 seconds to load. A cookie banner covering half the screen. Tiny text that forces them to zoom. A hamburger menu that refuses to open.
A plumber in Metz proudly shows me his website on his MacBook. Beautiful. I take out my phone, type the URL: the text overflows, the menu won't open, the phone number isn't clickable. His site looks great — but only on a screen none of his clients use.
That plumber had paid 2,500 euros for a "responsive" WordPress site. Responsive on paper, unusable in real life. The difference between a site that adapts to the screen and a site designed for mobile is the same as between a tailored suit and one that "fits": technically it works, but nobody's convinced.
3. The 5 most common mobile mistakes
I see these mistakes on 8 out of 10 tradesperson websites when I audit them. They're easy to spot, but nobody looks for them — because nobody checks their own site on mobile.
Text too small
Below 16px on mobile, text is unreadable without zooming. Yet many WordPress themes display body text at 14px, even 13px. Your visitor squints, then closes the tab.
Buttons too small or too close together
Google recommends a minimum touch target size of 48x48 pixels. On many sites, buttons are 30px tall and crammed together. Impossible to tap with your thumb without hitting the wrong link.
Uncompressed images
2 to 5 MB per image is common on tradesperson websites. The carpenter who uploads 12 full-resolution JPEG photos of their work: the page weighs 30 MB. On rural 4G, that's 15 seconds of loading. Nobody waits.
Hamburger menu that doesn't work
The classic WordPress breakage. The menu appears below the header, but the links don't respond to touch. Or it overlaps the content without scrolling. Or it opens and won't close. Of the last 20 tradesperson sites I audited, 6 had a partially broken mobile menu.
Phone number not clickable
The most expensive mistake. The client is on their phone, they see your number, they want to call — and they can't tap it. They have to memorize the number, open the Phone app, type it manually. 70% won't bother. A tel: link takes 10 seconds to add. It can be worth thousands of euros per year.
4. The 5-second test
You don't need a technical audit to know if your mobile site has a problem. Here's a test you can do tonight, in 2 minutes.
Open your site on your phone (not on Wi-Fi — on 4G, like your clients)
Show the screen for 5 seconds to someone who doesn't know your business
Ask them 3 questions: "What do I do?", "How do you contact me?", "Does this look trustworthy?"
If they can't answer all three, your mobile site has a problem
This test is brutal, but it simulates exactly what a potential client does. Someone searching "emergency plumber" isn't going to read your About page. They'll look at your site for 5 seconds and decide whether to call or move on to the next result.
Quick technical test
Go to pagespeed.web.dev, enter your URL and check the mobile score (not desktop — mobile).
Below 70: your site has a real mobile performance problem. Below 50: it's urgent. Every day that passes, you're losing clients who don't even know you exist.
5. What a mobile site should be in 2026
We're not talking about futuristic technology. We're talking about the bare minimum to stop losing clients. A decent mobile site in 2026 means:
Loads in under 2 seconds — even on 4G
Readable text without zooming — 16px minimum, sufficient contrast
Phone number at the top, clickable, always visible
"Call" or "Get a quote" button visible without scrolling
Lightweight images — WebP, under 200 KB each
Simple menu — no mega-menu with 50 links
Short form — name, phone, message. That's it.
The sites I build with Astro load in under one second on mobile. Lighthouse 95–100 on mobile. Not because I use premium hosting at 200 euros a month — because the technology is designed to be lightweight from the start.
A static Astro site sends 200 to 600 KB of data where WordPress sends 3 to 8 MB. No PHP, no database queries, no plugins loading useless JavaScript. The browser receives pure HTML, ultra-fast. An electrician whose site loads in 0.8 seconds has a massive advantage over their competitor whose WordPress site takes 5 seconds — before even talking about content or design.
6. FAQ
My site is responsive, isn't that enough?
Responsive doesn't mean mobile-optimized. A site can adapt to the screen size and still be slow, poorly organized, and unusable with a thumb. Responsive is the bare technical minimum — not a guarantee of a good experience.
How do I find out what percentage of my visitors are on mobile?
Google Analytics or Umami will give you this information in one click. You can also check the "Insights" tab on your Google Business Profile: it shows where your visitors come from and what device they use.
Do I need a separate mobile version?
No. One well-designed site that adapts. Separate sites (m.mysite.com) are a 2010s practice. It doubles the maintenance workload, creates SEO issues, and Google has explicitly advised against it since 2015.
My WordPress site is slow on mobile. What should I do?
Two options. Optimize: compress images, add a caching plugin, remove heavy plugins. That can gain 10 to 20 Lighthouse points, temporarily. Or migrate to a lightweight stack (Astro, Hugo) for a lasting result. Beyond a certain point, optimizing WordPress for mobile is like lightening a truck by removing the mirrors — technically it weighs less, but it's still a truck. See the full article on WordPress speed issues.
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Marc Muller
Freelance web developer. I build ultra-fast websites for tradespeople and small businesses in north-east France, delivered in 5–10 days, without WordPress or heavy maintenance.
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