WordPress Performance Optimization

WordPress Optimization

Entrust your WordPress site to web performance experts

Do you want to improve your WordPress site's performance to rank better in Google and with your users?

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We don't just install a plugin and tick a few boxes: we bring your WordPress back to life!

Our web performance experts optimize your WordPress site to achieve the best standards

Fast deployment

According to your internal processes, our experts operate directly in production for an instant performance gain, or on your pre-production environment. In either case, our patches are deployed without any service interruption. The user experience remains perfectly fluid and your employees' work is never impacted during our intervention.

The WordPress administration interface

Sustainable in the long term

To guarantee the stability of your platform, our developments are integrated as custom extensions and a child theme. We rely exclusively on the core and native APIs of WordPress, thus guaranteeing clean and standardized code. This approach allows you to update your theme and plugins with complete peace of mind, without altering our optimizations. We design our solutions to last.

Complete transparency

Every modification made is carefully recorded in a deliverable. We explain the gains brought by this modification in terms of performance metrics and how it was implemented. This allows your technical teams to understand and keep a record of what has been done. This support is not only transmitted at the end of the intervention but also presented via video conference to technical and business stakeholders.

Premium Support

Of the 311 clients supported by Agence Web Performance since 2022, a majority have been on WordPress. Our expertise is sharp and our intervention methodology is well-honed. Our developers also actively contribute to the WordPress core and the organization of WordCamps. Contact us now to learn more about the potential performance gains of your WordPress installation.

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Improve Google's and your visitors' trust: focus on Core Web Vitals

Our web performance optimizations have a direct impact on your visitors' experience, ensuring an increase in conversion volume and a decrease in bounce rates. Since user data is what Google collects via its Chrome User Experience Report (the famous CrUX), it also has a direct impact on SEO (increased visibility in SERPs).

Our WordPress and WooCommerce optimizations meet Google's expectations for Core Web Vitals: we work on the CLS, LCP, and INP metrics. The impact on scores obtained in tools like PageSpeed Insights, Lighthouse, and GTmetrix is immediate (on mobile as well as Desktop). The gains are reflected in the Search Console through the Page Experience and Core Web Vitals sections. A big plus for natural referencing, therefore!

A user satisfied with her mobile browsing experience

A service in 4 key steps

Our WordPress optimizations are broken down into several key stages.

A video conference exchange as part of a service

Technical Alignment

01

Our specialists consult with your technical teams to deepen their understanding of your WordPress site: exploring its history, analyzing installed plugins, identifying performance issues already detected, and the actions taken to resolve them. This interaction is crucial to ensure the effectiveness of our intervention.

Tracking implementation

02

We place a tag on your site that collects performance data from your real users. This "RUM" data is used to precisely identify bottlenecks. Thanks to this data-driven approach, we operate with maximum visibility on your issues.

We deploy Lighthouse monitors on your key pages to provide you with a synthetic view of performance evolution. Launched every 8 hours, they allow us to quantify mobile and desktop gains. Practical for those who track Core Web Vitals metrics in a tool like PageSpeed Insights.

WordPress Optimization

03

The expertise of our web performance specialists revolves around a methodical and precise audit of your WordPress site, using specialized tools to identify technical shortcomings. We then address these weaknesses by modifying the behaviors of the WordPress core, the theme, and problematic plugins. This approach is the very essence of our know-how.

Intervention Report

04

We organize a debriefing session with your teams to share the results. During this meeting, we explain in detail the modifications made and offer strategic recommendations to strengthen their web performance skills. This allows your developers and business teams to clarify all their questions with targeted and precise answers.

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?

Agence Web Performance is a gem of a provider! The mission I entrusted to them went smoothly. The deliverable was of impeccable quality, and their service far exceeded my expectations. The team is attentive, while also being proactive. Will I use them again? Yes, for sure. Do I recommend them? Yes, without any hesitation.

Matthieu Tran-Van, Google Ads Expert

311

clients supported

100%

customer satisfaction

They entrusted us with their WordPress optimization

Liberlo Fine Arts Praxedo Costomise Makiba Hello New York IRSS Betterway Papercraft 3D Hyperlex Webmarketing&co'm Lock Academy

Why is a WordPress site slow ?

WordPress is not inherently slow: it becomes so through accumulation. Six causes are found in almost all the sites we audit: shared hosting, a page builder, an excess of plugins, unoptimized images, the absence of caching, and a database that is never maintained. None of these are visible in isolation; it is their cumulative effect that weighs it down.

Hosting comes first. On a shared plan, processor and memory resources are shared among hundreds of accounts: your response time depends on your neighbors' traffic, with no way for you to act on it. Added to this are sometimes an old PHP version, poorly sized OPcache, and a database left at its factory settings.

Next come the page builders. They produce more markup than necessary and load their own stylesheets and scripts on every page, even where none of their components are used. The cost is paid on all pages of the site, even though the layout only justifies it on a few.

The third area is invisible from the browser: background tasks. Systematic logging of 404 errors, periodic checking of all links, recurring analysis of the file tree by a security plugin: these processes occupy the server while your visitors wait, and accumulate without anyone having planned them together.

The good news is that these causes can be prioritized and addressed in order. Page caching and hosting change the order of magnitude; extensions and images are handled next; the database is cleaned up last. Starting with the front-end is the most common mistake, as the gains are measurable but marginal as long as the server is struggling.

You have a question?
We have the answer!

Consult the FAQ for more details on the service.

Agence Web Performance is very active within the WordPress ecosystem. It sponsors WordCamp events, and its developers volunteer their time in the life of the CMS:

Amine : WordCamp Organizer

Eroan : Core Contributor, Translation Contributor, Translation Editor, WordCamp Organizer, WordCamp Speaker

Optimizing your WordPress or WooCommerce site allows you to solve concrete problems with your site, those that impact your loading times, and therefore user experience and SEO visibility. It is the simplest way to quickly and lastingly correct the weaknesses of your theme and plugins.

No, quite the opposite! A majority of slow WordPress sites use Page Builders, and we have developed optimization tools that specifically target them. The results are particularly excellent with Elementor and Divi, which are very popular. But we also optimize sites built with WPBakery, Visual Composer, tagDiv Composer, Brizy, and Oxygen Builder.

Our extensive experience with the WordPress CMS allows us to implement performance fixes quickly and transparently. This is why we strongly recommend optimization by us rather than an audit followed by implementation by your own development teams. Since the cost of the 2 packages is the same, the return on investment is faster this way.

Yes! Optimizing the web performance of a WordPress site helps to decarbonize it, that is to say, to reduce its carbon footprint. Our services therefore perfectly meet the requirements of a website decarbonization project. We also systematically include an "ecological impact" component in our deliverables.

WordPress optimization costs between €1,500 and €3,500 before tax, depending on the number of templates, the plugins in place, and whether or not a page builder is used. This is a fixed-price package, including three to four days of analysis and fix deployment. We will provide you with a quote upon request.

Proceed in order of gains: activate page caching, check that the hosting is not shared, update PHP with a properly sized OPcache, then optimize images and plugins. The first two levers change the order of magnitude, the following ones refine.

Page caching is the most cost-effective action: it saves the final HTML and serves it again without re-executing WordPress or querying the database. A page that used to take hundreds of milliseconds now takes a few. However, it only covers anonymous visitors: for administration and logged-in users, object caching takes over.

Next comes what cannot be fixed with a plugin: lighten the markup produced by the page builder, prioritize the first screen image, defer third-party scripts, and purge unnecessary background tasks. These actions require technical intervention, but they are the ones that last over time.

It's not the number of plugins that matters, but what they do. Four families weigh heavily: page builders, security plugins that analyze the file structure, those that log every 404 error or redirect, and link checkers that continuously recrawl the site. All of them work in the background, out of your sight.

The mechanism is always the same: a database write or a disk read on the critical path of the request. A site that logs its 404s executes an insert into the database for each visit to a non-existent page, including bots. The volume increases without real traffic increasing, and the concerned table eventually slows down all requests.

The good news is that these behaviors are almost always default settings, adjustable in the interface of each extension: reduce log retention, space out scans, enable low-resource mode. Uninstalling is not always necessary; it is the original setting that is at fault, rarely the tool itself.