Mobile-friendly websites: essential for Belgian businesses

The figures leave little room for doubt. In 2025, 58% of Belgian online purchases happened on smartphones. In BeCommerce's figures, smartphones overtook computers as the most popular shopping device for the first time: 88% of Belgian online shoppers shop by smartphone, compared with 81% by computer.

Belgians live on their phones outside shopping too. Statbel reports an average of 3,7 hours online per day, mostly on smartphones. The market is substantial: Belgians spent a combined 18,3 billion euros on online purchases in 2025.

For your small business, the conclusion is that most visitors probably first see your website on a small screen, while out, with varying mobile reception. That first mobile visit determines whether they become customers.

Many business owners think their site is mobile-friendly because it adapts to the screen. That is a good start, but responsive design alone is not enough. A truly mobile-friendly website is:

• Readable without zooming: large enough text, short paragraphs and enough white space.
• Thumb-friendly: buttons and links large enough for a thumb, spaced so nobody taps the wrong one.
• Fast on mobile networks: no heavy images or scripts loading painfully slowly on 4G.
• Immediately usable: a clickable phone number, an address linked to directions and forms with as few fields as possible.
• Free of obstacles: no pop-ups blocking the entire screen that are almost impossible to close.

The difference lies in the details. Customers who can call or order in three taps will do so. Customers forced to search, zoom and wait will leave.

Speed is the main mobile weakness. Average mobile loading time is 8,6 seconds, compared with 2,5 seconds on desktop. That is an enormous difference and explains why Google found that 53% of mobile visitors leave above 3 seconds.

Google's Core Web Vitals confirm mobile as the weak point: only 42% of websites pass all three measurements on mobile, versus 63% on desktop. The explanation is logical: a smartphone has less processing power than a laptop and often uses a slower network. A site feeling smooth in the office can be unusably slow on a train.

Never test only on your own computer with fast Wi-Fi. Your customer is in a car park, on the sofa or on a building site, with three bars of reception.

There is another reason to take mobile seriously: Google itself. Google has used mobile-first indexing for years. It examines and assesses your mobile website to determine where you appear in search results, including for people searching on a computer.

Does your mobile site have less content than your desktop version, or is it slow and awkward? Your visibility then declines for everyone. The reverse also applies: a fast, smooth mobile site is among the healthiest investments in your Google position.

This matters doubly for local businesses. Searches such as bakery nearby or plumber Ghent frequently happen on smartphones, often with the intention of calling or visiting immediately. An awkward mobile experience loses that customer to a business offering a smooth one.

You need no technical background to assess your site. Work through this checklist on your own smartphone, preferably with Wi-Fi off:

1. Loading test: open your homepage on 4G. Count the seconds until you can read something useful. More than 3? There is work to do.
2. Reading test: can you read all text without zooming?
3. Thumb test: can you easily tap every menu item and button with your thumb without mistakes?
4. Call test: can you call or email with a single tap from your contact page?
5. Goal test: complete the main action you expect customers to take, such as requesting a quote or ordering a product. Can you do it smoothly within a minute?

Then measure objectively with Google's PageSpeed Insights. It displays your mobile score separately and lists concrete obstacles, from oversized images to slow server responses.

The same mobile mistakes recur on Belgian small-business websites:

• A shrunken desktop site: everything is present, but nothing has been reconsidered for a small screen. Menus eight levels deep do not work on a phone.
• Essential information hidden: opening hours, address and phone number sit at the bottom or in a PDF, although mobile visitors come precisely for those details.
• Too many form fields: every additional smartphone field costs enquiries. Ask only for what you really need.
• Heavy sliders and videos at the top: attractive on desktop, disastrous for mobile loading time.
• Never tested on a real device: the site was delivered, approved on the owner's laptop and never checked on mobile again.

The good news is that none of these mistakes requires a revolution to fix. Put your mobile visitor first and you immediately move ahead of many competitors.

Belgian customers search, compare and buy on smartphones. A website not built around that loses visitors and revenue every day, however good your offer.

Want clear evidence of your website's mobile friendliness, speed and search visibility? Try Marketing Scan's free marketing scan. Within minutes, you receive a practical report showing your strengths and biggest improvements, so you know exactly where to start.