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Website 5 March 2026 10 min read

Website redesign: when and how to succeed in 2026

A complete guide to a successful website redesign: warning signs, key stages, mistakes to avoid and an SEO checklist to avoid losing traffic. Expert advice in Brussels.

Website redesign: succeeding in 2026 | Kanexio

Why consider a website redesign?

Your website is an important point of contact with prospects. It presents your brand, your offer and the actions available. When it no longer fulfils these functions, targeted improvements or a redesign can be considered.

A redesign may be relevant when data, usage or strategy reveal a structural problem. The website’s age or appearance alone is not enough to decide.

  • The design no longer serves the brand: messages, hierarchy or components no longer match the current offer. Check this finding with users and the sales team.
  • Measured goals are deteriorating: start by checking tracking quality, traffic sources, the offer and the journey before attributing the decline to design. Landing page checkpoints can help isolate the problem.
  • The mobile experience is inadequate: base the diagnosis on the devices actually used, manual tests and field data, not a global percentage of mobile traffic.
  • Technology limits development: unsupported versions, blocking dependencies or inadequate performance may justify changes. First measure the extent of the problem using our Core Web Vitals reference points.
  • You are rebranding: your brand evolves, your colours change and your messages shift. Your website must follow, and this is the right time to give brand identity proper attention during a redesign.
📊 Basis for the decision

Before redesigning, keep a baseline: URLs, indexing status, traffic by page, conversions, performance field data and known errors. This lets you compare the situation after launch without automatically attributing every change to the new website.


The 5 major risks of a redesign

A redesign combines technical, editorial and organisational risks. Here are the main pitfalls to anticipate:

⚠️ Common mistake

Changing URLs without mapping or redirects can make old addresses inaccessible and disrupt crawling. Google also states that temporary fluctuations may occur while a migration is reprocessed, without a universal timeframe.

Other risks to anticipate

  • Not configuring permanent redirects: an old URL that changes must point to the relevant new destination. Avoid redirecting all pages indiscriminately to the homepage.
  • Changing the architecture without a strategy: analyse pages, intentions and links before deciding what to keep, merge or remove.
  • Neglecting the mobile experience: test the main templates on screens and connections matching your audience.
  • Forgetting the measurement plan: You will not know what improved or did not. Always measure before, during and after.

The stages of a successful redesign

A redesign connects decisions to delivery
  1. Audit Understand the existing website and its reference points.
  2. Objectives Define what the website needs to enable.
  3. Architecture Organise content and the journey.
  4. Design and build Carry out design and development.
  5. Migration Prepare the destinations and redirects needed.
  6. Testing Check the website before and after launch.
Launch retains migration checks, tests and the ability to roll back.

A good redesign follows a rigorous method. Do not skip any stage.

1. Audit the existing website

Before touching a single line of code, take time to understand what works. Analyse your current traffic, best-performing pages, users and SEO. Export all current URLs, their rankings and traffic. This is your baseline.

2. Define business objectives

What is this redesign for? Clarifying the offer, fixing a journey, modernising the identity or adding a feature? Define metrics, their sources, the reference period and the level of change that would be useful. A target remains an objective, not a forecast.

3. Information architecture and UX

Create a clear structure for the new website. How will the pages be organised? What journey will visitors take? Where should your calls to action go? This is when you plan URL migration and decide whether the structure will change.

4. Design and development

Once the structure is approved, design around explicit functions: understanding the offer, navigation, reading, reassurance and completing tasks. Effectiveness is verified through tests and data, not appearance alone.

5. SEO migration and redirects

Before public launch, map old URLs to relevant destinations. Configure permanent redirects, update internal links and the sitemap, then test everything in staging. Search Console’s Change of Address tool applies only to certain domain changes.

6. Testing and gradual launch

Prepare a launch procedure suited to the stack: staging tests, a backup or restorable version, redirect checks, form verification and a rollback plan. A gradual deployment can be useful when technically possible, but it is not a universal rule.


Redesign and SEO: the checklist to preserve everything

This stage reduces the risk of making content inaccessible or losing its technical continuity:

  • Map old URLs to new URLs: keep an inventory of every address that changes, its relevant destination and the expected status of removed pages.
  • Configure appropriate redirects: use a permanent redirect for a lasting move and avoid chains or loops. A temporary redirect serves a different need.
  • Update sitemap.xml: list the canonical URLs you want crawled. A sitemap helps discovery without guaranteeing indexing.
  • Use Google Search Console: submit the sitemap, inspect URLs and use the Change of Address tool only when it applies to the migration type.
  • Monitor until things stabilise: adapt the frequency to website size and observed signals. Check crawling, indexing, errors, traffic by page and business goals in particular.
💡 Tip

Google recommends planning a migration carefully and states that reprocessing times vary with URL count and the website’s crawl capacity. Set your checking frequency according to observed data, not a universal schedule.


How much does a website redesign cost in Belgium?

There is no verifiable standard price for a redesign. A serious budget breaks down the scope instead of deriving the price solely from page count:

  • Audit and scoping: inventory, objectives, users, content and technical requirements.
  • Design: architecture, UX, identity, components and prototypes.
  • Implementation: development, integrations, content migration and redirects.
  • Validation and operation: testing, accessibility, measurement, training, maintenance and post-launch monitoring.

Feature complexity, languages, third-party integrations, content volume, accessibility requirements and the level of support influence the quote. Above all, compare clearly described scope, deliverables, responsibilities and maintenance terms.

🎯 Key takeaways
  • Decide on a redesign based on verified problems, not the website’s age alone.
  • Preserve a baseline before changing the architecture or URLs.
  • Follow a structured method: audit, objectives, architecture, design, migration and validation.
  • Mapping, redirects, the sitemap and monitoring reduce risks without guaranteeing that rankings will be maintained.
  • Budget depends on scope, responsibilities, integrations and the expected level of validation.

Conclusion: this time, the redesign is for real

A redesign can improve a website’s consistency, usability and ability to evolve. Its effect on leads, traffic or visibility must, however, be measured after launch and cannot be guaranteed by design alone.

Above all, the project needs a baseline, a clear scope, a verified migration and proportionate monitoring. Any fluctuations should be interpreted in context, without assigning them a fixed timeframe.

If you want to audit your current website, identify verifiable problems and plan a controlled migration, discuss your redesign with our experts. We can build a precise action plan with acceptance criteria and explicit limitations.

For a clearer understanding

This article's glossary.

Technical terms, simply explained.

19 terms
Digital accessibility
Designing content and services that people with different abilities can use, including with assistive technologies.Documentation
Audit
A structured examination of a website or process to identify problems, gather evidence and set priorities.
Branding, brand identity
Building the signs, messages and rules that make a brand recognisable and explain what it stands for.
Conversion
An action chosen as an objective: a quote request, call or purchase, for example. A contact click does not prove that a sale took place.
Core Web Vitals
Three indicators of page experience: main content loading (LCP), responsiveness (INP) and visual stability (CLS).Documentation
Crawling
A bot’s exploration of pages and links to discover or update content.Documentation
Google Search Console
Google's tool for viewing, among other things, a website's crawling, indexing and performance in its search results.
Indexing
Recording a page in an engine's index after analysis. An indexed page is not guaranteed to appear for a given search.Documentation
Landing page
The page a visitor reaches after a click. It may be designed for a specific offer, campaign or action.
Lead, prospect
A contact who may be interested in your offer. They are not necessarily qualified yet, nor have they become a customer.
Internal linking
The organisation of links between pages on the same website to guide readers and make crawling easier.
Maintenance
Work needed to keep a website or tool operational: updates, checks, corrections and monitoring.
Redesign
A substantial revision of a website's structure, presentation, content or operation. It requires planning for continuity of pages and usage.
SEO, organic search optimisation
Work on a website and its content to help engines understand them and people find them in organic search results.Documentation
Sitemap
A file that tells engines about a website's important pages and, where applicable, their modification dates.Documentation
Technology stack
The technologies and tools used to run a website, application or process.
URL
The address of a resource on the web, such as a page, image or document.
Canonical URL
The address chosen as the reference version when several URLs show identical or very similar content.
UX, user experience
The quality of a person’s experience: understanding, ease of use and achieving their goal.