High-performance WordPress website redesigns

Website Redesign

Evolve your existing site towards a healthy technical stack

Do you have a website that you want to evolve towards the best standards in terms of performance and User Experience? We redesign your website on a healthy WordPress base, without losing your SEO.

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The tools, APIs, and best practices exist. It's up to you to take advantage of them for your future site!

Our web performance experts rebuild your existing site on a sound technical foundation

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Today, WordPress powers a majority of the web: it equips 40.8% of all websites, and 59% of those with an identified CMS, according to the W3Techs survey from August 2026. This confirms its status as the reference CMS for a website redesign. We have naturally selected it as the main engine for our projects for the concrete benefits it brings you: accessible back-office, facilitated collaborative work, intuitive page design, and an incomparably rich ecosystem of tools.

A web designer on Figma

A break in continuity

Our website redesign approach aims to update the technical foundation while preserving the fundamentals of the pre-existing site. The objective is to ensure a modern rendering, aligned with your company's image, while facilitating long-term management, updates, and scalability. We pay particular attention to the SEO aspect: a 301 redirect plan, preservation of strategic URLs, and post-launch monitoring in Search Console help to avoid any loss of position in Google's results.

Mastery of web quality

Driven by high standards and attention to detail, we design web projects that adhere to industry best practices. Our creation process is exhaustive: designed first for smartphones, accessible to all, environmentally friendly, and optimized to shine on search engines. All of this is supported by cutting-edge web performance expertise to guarantee unparalleled loading speed.

Premium Support

With over 311 clients supported since 2022, Agence Web Performance knows how to support demanding clients in redesigning their website. Technical rigor, flexibility, and attentive listening are all assets that are leveraged throughout the process. Contact us to learn more.

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We use these tools

WordPress
Gutenberg
GeneratePress
GeneratePerf
GenerateBlocks
WP Rocket

Aim for the top in the 4 aspects of Lighthouse

Our "quality control" oriented approach aims to meet the expectations of Google and your users. To achieve this, we aim for a score of 100% on the 4 key aspects of the Lighthouse synthetic audit tool.

A user with a disability navigates a website

Webperf

01

Our mobile-first approach focused on web performance allows for optimal Core Web Vitals metrics: your site is fast (LCP), visually stable (CLS), and responsive to interaction (INP). It passes the "Core Web Vitals" aspect in Google Search Console with flying colors and sustainably.

Accessibility

02

A focus is placed on the choice of colors, fonts, and the implementation of features to ensure compliance with the standards highlighted by WCAG, which is the reference. User Experience is thus excellent.

SEO

03

Facilitating Google's crawl of your pages and ensuring maximum visibility in the SERPs requires a solid technical foundation. We bring the necessary evolutions to your site, notably freeing it from any technical debt, to maximize its natural referencing.

Best practices

04

Our in-depth expertise in web design, including Opquast certification, guarantees that your newly redesigned site will meet the key web quality standards. This is the foundation of our website creation services.

What is GeneratePerf?

GeneratePerf is a Premium WordPress plugin developed and regularly updated by us since 2020. Used as a framework within our services, it ensures you benefit from the best of our expertise within the WordPress environment. It is also offered to everyone under an annual license on generateperf.com, with its complete documentation.

Included features

GeneratePerf, which unlocks its full potential when paired with the GeneratePress theme, comes with a dedicated dashboard that allows you to activate multiple built-in features with a single click.

These features advantageously replace popular plugins that generally create a bottleneck. Here is a detailed but not exhaustive list of supported features:

  • Read count system compatible with cache plugins and activatable by post type
  • Lightweight automatic table of contents, activatable by post type, to effectively replace TOC-type plugins
  • Rating system, with display of the average rating and automatic integration of schema.org semantic markup to obtain Rich Snippets (stars) in Google search results pages
  • Obfuscated and lightweight social sharing buttons, with native sharing support
  • Author boxes with or without links to author pages, and author listing shortcode (for "our team" page)
  • Shortcode to display the list of authors on an "Editorial Team" type page
  • Display of reading time and a lightweight scroll progress bar
  • In-text and out-of-text related articles based on tags and categories
  • Lightweight and functional contact form shortcode with the ability to activate an anti-bot system in 2 clicks
  • Integrated maintenance mode, to temporarily block site access by sending the correct code to crawlers
  • One-click complete deactivation of comment support
  • AI toolbar on articles: the reader summarizes, deepens, checks, or translates the page with one click in ChatGPT, Claude, Perplexity, Grok, or Google AI

Web performance optimization

GeneratePerf also allows you to benefit from advanced optimizations specifically designed to improve certain Core Web Vitals such as Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS).

  • Access to 97 self-hosted fonts optimized for performance, including 90 variable fonts: optimal subsetting, automatic preloads, fallback fonts calibrated against CLS…
  • Third-party script integration fields ensuring optimal loading for web performance. Takes into account CMP tags, ad networks, and Analytics tools (GA4, Matomo, Plausible…), with intelligent deferral of low-priority scripts to improve INP.
  • 2-click activation for GDPR compliance via an ultra-lightweight basic CMP. All advertising and tracking scripts are then loaded after consent and in an optimized manner.
  • Automatic LCP optimization on featured images in articles and pages.
  • Inline loading of SVG logo to improve loading times.
  • Pause off-screen animations, transitions between pages (View Transitions), dark mode, and opening YouTube, Vimeo, or self-hosted videos in a modal window.
  • Over 120 performance optimizations, with some activated via 1 click in the dashboard.

Improve natural referencing.

Better indexability, Crawl Budget optimization, increased visibility in search engine results pages (SERPs)… GeneratePerf is designed to meet all of Google's expectations.

  • Translated into 10 languages (French, English, German, Danish, Spanish, Italian, Dutch, Polish, Portuguese, and Swedish), with the possibility of quick translation to any other language using an extension like Loco Translate.
  • Advanced configuration of labels for various functions displayed in the front-end to vary textual footprints, very useful for site networks from an SEO perspective.
  • Option to display the modification date of articles, and thus show Google that it has been updated.
  • Improvement of archive pages with integration of subcategories and related tags in 1 click.
  • Automatic implementation of silos on main navigation elements, activatable in 1 click.
  • Option to display a Google News tracking link on articles.
  • Option to change article permalinks with an optimal structure while preserving old URLs, which avoids the implementation of 301 redirects.
  • Automatic generation of a Google News sitemap respecting standards.
  • Shortcode for displaying a complete sitemap of categories and content, ideal for facilitating crawling.
  • Shortcode for displaying the most popular tags in a ranking format.
  • Shortcode for displaying a tag map in the style of an alphabetical lexicon.
  • Over 50 automatic optimizations, some of which rely on the very popular Yoast SEO plugin

Our clients talk about us

Who better than a client to be an ambassador and help you understand what Agence Web Performance can bring you?

We called on Agence WebPerformance for a complete redesign of our website. The team quickly understood our needs and proposed a modern design that perfectly matches our brand image. The project was carried out with great efficiency, within the announced deadlines and without any unpleasant surprises. They took the time to support us, to train us so that we could take control of the site autonomously, and they remained available afterwards to answer any questions we might have. I recommend Agence WebPerformance without hesitation to any company wishing for a site that lives up to its ambitions, with a listening and truly invested team.

Céline Baffaleuf, Product Marketing Manager @Dartfish
See client case study

311

clients supported

100%

customer satisfaction

They entrusted us with the redesign of their site

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How to migrate an existing site to WordPress?

Migrating a site to WordPress involves transferring content, media, and URLs to a new installation, without service interruption or loss of SEO. The migration takes place in four stages: inventory of existing URLs, content transfer, implementation of the redirection plan, and then testing before switching the domain name.

We conduct this migration from the most common CMS and builders: Drupal, Joomla, PrestaShop, Wix, Squarespace, Webflow, Jimdo, or custom-developed sites. Content is transferred into the native WordPress editor rather than a proprietary page builder, which avoids rebuilding technical debt on the day of the migration.

The work is carried out in a pre-production environment, invisible to search engines and your visitors. The switch to production only occurs once testing is validated, including redirects: your current site remains online and intact until the last minute.

You have a question?
We have the answer!

Consult the FAQ for more details on the service.

Yes. We offer WordPress integration, which sometimes accompanies WordPress site redesigns.

We use the tools presented earlier, namely Gutenberg and GenerateBlocks, for a result that closely matches the mock-up design and top performance.

Yes. We can create a site from scratch, benefiting from the advantages presented earlier.

This allows us to start with a healthy technical foundation, with optimal extensions that we master. More information here for website creation.

We can redesign a WordPress site that has a WooCommerce or any other e-commerce solution integrated. The cost will generally be higher than for a Corporate or Media site redesign, as specific work will be necessary on the product category pages and product description pages.

The price of a redesign depends on four variables, which we price on a project-by-project basis: the number of templates to design, the volume of content to migrate, the presence or absence of an online store, and whether we start from an existing design or create a new one. As each redesign is unique, the service is subject to a personalized quote.

A showcase site of about ten pages is at the lower end of this scale; an e-commerce site with catalog migration occupies the higher end. Contact our teams by email or phone, describing your project: we will get back to you quickly with a tailored proposal.

No, provided that a redirection plan is established before going live. A redesign only causes a loss of SEO when old URLs disappear without being redirected: search engines then lose the history of each page. With a comprehensive 301 redirection plan, acquired positions are transferred to the new addresses.

We systematically proceed in three steps: an exhaustive inventory of existing URLs before work begins, a mapping table from old to new addresses, and then checks after going live of redirections, the sitemap, and response codes. Traffic drops observed after a redesign are almost always due to the absence of this step.

A well-executed redesign actually improves SEO: a clean technical foundation, mastered Core Web Vitals, a revised semantic structure, and reduced server response times are all positive signals for Google.

A redesign is justified when the site can no longer be salvaged by fixes. Five signals regularly appear: persistently poor Core Web Vitals, a theme or plugins that are no longer maintained, a back-office that has become unmanageable for your teams, a graphic charter that is out of sync with your positioning, or a site that does not comply with accessibility rules.

The decisive criterion is economic: when the cost of successive fixes exceeds that of a new foundation, redesign becomes the rational option. If the site is healthy but slow, performance optimization is generally sufficient, for a much lighter intervention.

Allow 1 to 6 months depending on the size and complexity of the site. A showcase site of about ten pages, with an approved design and ready content, can be redesigned in a few weeks. A high-volume site, with catalog migration, multilingual content, or custom features, will take longer within this range.

The schedule depends on you as much as on us: the validation of the mockups and the provision of content are the two steps that most often extend projects. We work in milestones so that each party knows at all times what is expected and by when.