Web performance audit and optimization

The impact of speed on your conversions and SEO

In today’s digital ecosystem, website performance is a decisive technical and business criterion. A loading time exceeding 3 seconds leads to a drastic increase in bounce rate, directly impacting your revenue (Google Study).

In addition, search engines (through Core Web Vitals criteria) now penalize the organic search ranking (SEO) of platforms that are too slow. Performance optimization (WebPerf) is no longer optional — it is a strategic necessity.

Case study on the File-Seekr project: transition from a critical score to optimal Grade A performance (GTmetrix test).

Our technical expertise in Web Performance (WebPerf)

As full-stack developers and system administrators, we do not simply apply patches: we address slowness at its root. From source code to server architecture, we deploy cutting-edge technologies to guarantee response times (TTFB) measured in milliseconds.

Our audits and technical interventions cover your entire infrastructure:

• Scores and metrics: Drastic improvement of Google PageSpeed Insights, Lighthouse, and GTmetrix scores.
• Front-end optimization: Code minification (HTML, CSS, JS), removal of render-blocking JavaScript, and reduction of excessive DOM size.
• Media management: Dynamic resizing, Next-Gen compression (WebP), and lazy loading of your images and iFrames.
• Network architecture: Implementation of advanced caching systems (Redis, Varnish, browser cache), data compression (Gzip/Brotli), and DNS prefetching.
• Infrastructure and back-end: Optimization of database queries (SQL), web server speed tuning, and CDN deployment (Cloudflare, AWS).
• Application cleanup: Reduction of redirect chains and removal of unnecessary code linked to outdated CMS platforms or plugins.

Provide your users with a smooth browsing experience and maximize your conversions!