Web performance optimization: entrust your site to experts

Don't let performance issues degrade your online visibility!

< Our web performance experts work on your site to deploy targeted fixes />

Better user experience

Who, tired of waiting for a page to load that invariably remains blank, has never pressed the "back" button on their browser? Meeting your visitors' or prospects' expectations in terms of speed and responsiveness means ensuring they spend more time browsing your site, whether on mobile or desktop. All that's left is for you to focus on your mission: offering them the content they expect.

Increased conversion rates

For e-commerce stores using WooCommerce, MFA (Made For Advertising) sites, and those whose business model relies on converting visitors into leads or orders, web performance plays a crucial role. The conclusions of several serious studies converge in one direction: every millisecond gained means increased revenue. The observation is the same for AdSense, Taboola, etc., type ads.

Gain in SEO visibility

The impact of loading times on Google's SERP positions has long been debated. The "Page Experience" algorithmic update of 2021/2022 clarified the situation: on mobile and desktop, the fastest sites benefit from a visibility boost compared to competitors of equivalent quality and relevance. This is particularly evident in Google Discover and the news carousel, but also more broadly in terms of natural referencing.

Increased resilience and security

Web performance optimization allows you to align your tools (theme and plugins) with your site's specific needs. It's an opportunity to do a major cleanup of your CMS, reducing the risks associated with security vulnerabilities and facilitating future updates of the core, theme, and extensions. It's also an excellent way to decarbonize a site, meaning reduce its carbon footprint.

Premium Support

With over 308 clients supported since 2022, Agence Web Performance has earned a solid reputation in website optimization, regardless of their technical stack. Contact our teams to learn more about our solutions and boost your website's potential.

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We optimize all technical stacks

A service in 4 key steps

Our performance optimizations are broken down into several key stages.

A videoconference call as part of a service

Technical Alignment

We meet via video conference to discuss with your teams and discover your technical stack in detail. We review the issues identified, the steps already taken, and your web performance goals. This ensures a service that precisely meets your needs.

Tracking Implementation

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 put numbers on mobile and desktop gains. Practical for those who track Core Web Vitals metrics in a tool like PageSpeed Insights.

Site optimization

We audit your site and deploy the necessary fixes to improve detected weaknesses. This is done transparently, without interruption, and with lasting effects. Our methodology includes 120 checkpoints. This is a complex and highly specialized mission that can take up to 4 days.

Intervention Report

We meet a second time via video conference to present what has been deployed on your site. This is an essential exchange to ensure the sustainability of the optimizations. We also focus on the mobile PageSpeed Insights scores before and after the intervention.

What do our experts do, concretely?

Discover some of what our front-end performance experts deploy as part of optimizations.

Static resource optimization

Our expert approach to front-end performance leads us to focus sharply on different types of resources: JavaScript, CSS, images, videos, fonts, etc. Each of these can significantly degrade a web page's performance, particularly LCP.

Minification, combination, switching to modern formats, or implementing fallbacks are among the tools used in our optimization services. This operation requires advanced knowledge of best practices.

Prioritization of critical resources

Our experts use browser developer tools to identify blocking elements in the critical rendering path. The waterfall, or cascade loading diagram, is a key tool for understanding how the browser loads a web page.

Once loading issues are identified, we work on re-prioritizing key resources and de-prioritizing less important ones. This is a mission that requires a detailed understanding of how browsers work, and it is always very effective in improving Blocking Time and INP.

Reducing rendering times

One aspect of our optimization services involves reducing page rendering times by the browser. This is a complex process as it impacts the browser's CPU resource consumption, with effects that often affect multiple Core Web Vitals simultaneously.

We work in particular on page structure and DOM characteristics (the HTML code as it is used by browsers). Here again, we leverage the APIs and features integrated into browsers for immediate and lasting effectiveness.

Eliminating back-end bottlenecks

Server architecture and network infrastructure can strongly impact a site's performance, particularly TTFB. The mission of our experts is to ensure that performance is as stable as possible regardless of upstream variations.

In addition to deploying a static HTML cache, our methodology involves optimizing MySQL databases, implementing object caching, upgrading server configurations, and setting up optimal Resource Hints.

They entrusted us with optimizing their site

Have a question?
We have the answer!

Consult the FAQ for details about the service.

Why optimize web performance?

Optimizing performance allows you to solve concrete problems with your site, those that impact your loading times, and therefore user experience and SEO visibility. It's the simplest way to fix them quickly and lastingly if you don't have internal development teams or a dedicated provider.

Should we prioritize optimization or an audit?

It depends on the maturity of your development teams. If the tools and stack are perfectly mastered, you can choose an audit rather than optimization by us. If this is not the case, we advise you to rely on our experience for us to carry out the identified modifications on your site ourselves.

What CMS can you optimize?

We optimize sites running on the most popular CMS: WordPress, PrestaShop, Drupal, Shopify, and Magento. We can also work on "custom" sites as long as they are not SPAs built with Angular or React (in which case, we perform an audit).

How much does web performance optimization cost?

The service is offered as a fixed-price package, which includes three to four days of analysis and deployment of fixes on your site. We can provide you with a quote upon simple request by email or phone.