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WEBSITE DESIGN

Websites built
to convert.

Documented architecture, restrained design and prioritised user journeys. A PSI Performance score of 95+ is guaranteed at delivery for the pages and conditions defined in the quotation.

Free audit (30 min) View our expertise
Illustration of a website interface.
Give your online presence a clear shape. Editorial illustration.

Creating a useful website means connecting an offer, its audiences and measurable actions through an accessible, maintainable architecture. The right format depends on the content, features and team: a landing page, business website, e-commerce store or custom development. This can then be supported by performance work, maintenance and GDPR scoping where the project requires it.

9
Web expertise
95+
Guaranteed PSI Performance
2
Core ecosystems
1
Direct point of contact
Our expertise

12 areas of expertise to build
your complete web presence.

From delivery strategy to sustainable web design, with clear access to each specialist service.

The visual guide

Choose the format around the intended user journey

  • Present an offer

    A business website organises your expertise and makes it easy to get in touch.

  • Support a campaign

    A landing page connects a specific promise to an action.

  • Enable a purchase

    E-commerce brings together your catalogue, checkout and sales operations.

Specific business features may require custom development.

Kanexio signature

SXO · Search & Conversion eXperience

2026 standard

SEO + CRO combined. A website that ranks AND converts. Core Web Vitals under control, premium UX and scalable architecture.

  • Ad-ready pages (Google Ads, Meta, LinkedIn)
  • Heatmaps, A/B tests and continuous fine-tuning
  • PSI Performance 95+ guaranteed under a defined protocol
Discover SXO

Premium business website

Reflects your expertise and generates leads.

Explore

E-commerce

A high-performing store with measurable ROI.

Explore

Landing pages

Ad-ready pages optimised for conversion.

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CRO · Conversion rate

A/B tests, heatmaps and fine-tuning.

Explore

Performance

PSI 95+ guaranteed at delivery, with Core Web Vitals measured.

Explore

Website performance audit

A complete technical assessment within 48 hours.

Recommended
  • Core Web Vitals + Lighthouse
  • Technical SEO + accessibility
  • Security + GDPR
  • Prioritised action plan
Explore the audit

Maintenance

Updates, backups and monitoring.

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GDPR scoping

Tracker inventory, consent and technical implementation within the agreed scope. Legal validation remains separate.

Learn more
Method

4 phases, with visible sign-offs.

A structured process, clear milestones and approvals at every stage. You always know where your project stands.

01

Strategic scoping

Audit of the existing setup, competitor analysis, business objectives and measurement KPIs.

Phase 1

02

Architecture & wireframes

Sitemap, user journeys and mobile-first wireframes. Approval before any visual design begins.

Phase 2

03

Design & development

Premium UI designs, efficient HTML/CSS implementation, CMS and custom features.

Phase 3

04

Measurement & optimisation

Technical acceptance testing, checks against agreed indicators, launch, handover and the stabilisation period set out in the quotation.

Phase 4

Technologies we work with

The right tools for the right project.

No technology dogma: we choose the stack that serves your project. From high-performance custom development to the WordPress ecosystem, these are the tools we use every day.

A high-performance foundation

For custom projects where static rendering, a performance budget and editorial architecture are appropriate.

Astro

Content-focused framework

Tailwind CSS

Custom design system

HTML · CSS · JavaScript

Clean, lasting foundations

Cloudflare

Edge, CDN and security

WordPress and its ecosystem

For teams that need a publishing CMS and its ecosystem of themes, builders and plugins.

WordPress

An established, scalable CMS

Elementor Pro

Page builder

Divi

Page builder

Avada

Versatile premium theme

Astra

Ultra-lightweight theme

WooCommerce

E-commerce

Search visibility, measurement and speed

The layer that makes a website visible, measurable and fast, whatever the underlying technology.

Schema.org

Structured data

Rank Math · Yoast

SEO on WordPress

GA4 + server-side

Measurement and governance

WP Rocket

Caching and Core Web Vitals

Case studies

A selection of delivered websites.

Each case study distinguishes publicly verifiable work from commercial results that are not available.

Pebify

Energy performance certification (PEB) · Brussels

×12+

More than 12 times the booking value

From 1 to 14 September 2026, compared with the whole of September 2025.

Actual 2025 appointments from the calendar. Historical amounts estimated. Tests and duplicates excluded. Source: QG PEBify and booking system.

Read the case study

Atmos Technics

Plumbing & heating · Anderlecht

Website live

Multi-service website + a 4-step quotation journey

Read the case study

Keuleers Expertises

Property expertise · Brussels

Website + support

Professional website and maintenance

Read the case study
View all case studies
Why Kanexio

Websites that generate ROI,
not decoration.

95+
documented protocol

PSI 95+ guaranteed

A PageSpeed Insights Performance score of 95+ is guaranteed at delivery for the pages and testing conditions defined in the quotation. Field Core Web Vitals are monitored separately.

UX
prioritised user journeys

Optimised to convert

UX journeys, calls to action and measurement are designed around the website’s actual objective. Their impact is monitored, not assumed.

DOC
planned handover

Maintainable & secure

Access, documentation, responsibilities and maintenance arrangements are specified in the proposal and contract.

Frequently asked questions

What clients always ask.

To plan your project’s funding, read our guide to the Brussels digitalisation grant: eligibility, timing and what to prepare before you start.

How much does a professional website cost in Brussels?
A premium business website starts at €4,500 excluding VAT, and an e-commerce store at €8,500 excluding VAT. The quotation depends on the number of pages, custom features, multilingual content and third-party integrations (CRM, ERP, payments). No opaque packages: you receive an itemised quotation after the free audit. If your current website needs replacing, our advice on planning a successful website redesign will help you define the project.
How long does it take to deliver a website?
The schedule depends on the number of pages, content, integrations and approvals. The proposal sets out milestones for scoping, wireframes, design, development, acceptance testing and launch. A timeline is only confirmed once the scope has been inventoried.
Which CMS do you recommend: WordPress, Astro or something else?
It depends on the project. WordPress makes sense when a team wants to manage a rich publishing ecosystem. Astro suits content websites where lightweight static rendering is appropriate. Custom development addresses specific business requirements. We document the choice instead of applying a generic percentage. Whatever the CMS, the interface is based on a consistent design system.
Will I really own the website?
Rights to content, data, access, code and components are detailed in the proposal and contract. Client-supplied materials, third-party licences and Kanexio components may be subject to different terms. The planned handover is documented before work begins.
What happens after delivery?
The acceptance period, included corrections, maintenance, backups and response times are set out in the proposal. Ongoing maintenance or on-demand support can then be arranged according to the technology stack.
What does the PageSpeed Insights 95+ guarantee cover?
Kanexio guarantees a PageSpeed Insights Performance score of 95 or above at delivery for the pages, version and device type specified in the quotation. The check is dated and documented. The guarantee does not cover CrUX field data, rankings, conversions or subsequent changes made by a third party.

Let’s discuss your website project.

A free 30-minute audit by video call or at our office (Vanderkindere 524, Uccle). No salesperson: you speak directly with Hani.

Request the free audit View the case studies