Web performance optimisation
Every extra second of load time drives away 7% of your visitors and penalises your Google ranking. I optimise your site to load in under 2 seconds on mobile - with measurable gains on traffic and conversions.
- Gains shown before I start
- No redesign needed in most cases
- Measured before and after
- ImagesWeight, WebP format, lazy loading
- CodeUnused or blocking CSS and JavaScript
- CachingCaching and compression
- HostingServer response time
Reply within 48 hours
Every second counts.
Images, caching, code and hosting: I deal with what weighs the most, and measure the result.
Full PageSpeed audit
Detailed analysis of every performance bottleneck: unoptimised images, blocking JavaScript, unnecessary requests, slow server, missing cache. You receive a prioritised report with expected gains.
Image optimisation (WebP, lazy loading)
Conversion to WebP, resizing to correct display sizes, lossless compression and lazy loading. Images often account for 60% of a page's weight.
Caching
Browser cache, server cache (Nginx/Apache), CDN where relevant: previously visited pages reload almost instantly. Good caching can cut load time by a factor of three.
CSS/JS minification and dead code removal
Minification and compression of CSS and JavaScript files, removal of unused resources, deferred loading of non-critical scripts. Fewer kilobytes = faster page.
Appropriate hosting
A slow host caps all optimisations. I assess your current hosting and advise on migration if needed - with an immediate impact on Time To First Byte (TTFB).
Core Web Vitals tracking
LCP, INP, CLS: the three metrics Google uses to evaluate user experience. I measure them before and after the work, and track their evolution in Google Search Console.
When a slow site is costing you visitors.
Slow sites (> 3 seconds)
If your site takes more than 3 seconds to load on mobile, you're losing the majority of visitors before they even see your content.
E-commerce businesses losing sales
Amazon found that a 100ms slowdown costs 1% of revenue. On an online store, performance is directly tied to sales figures.
Sites penalised by Google
Since 2021, Core Web Vitals have been a Google ranking factor. A slow site loses positions to faster competitors, even with better content.
They put it better than I can.
5/5 on Google, 19 verified reviews.
Read the 19 Google reviewsThe showcase website created by VulcainDesign is modern, smooth, and very enjoyable to navigate. Everything works perfectly on both mobile and desktop.
Monica Paola Conde HernandezManager★★★★★From audit to results.
- 1Free auditI analyse your site and tell you what is holding it back, in order of impact.
- 2Costed action planYou know what I will do, what it costs and what you can expect from it.
- 3ImplementationI fix and optimise, keeping you informed at every stage.
- 4Measurement and follow-upI measure the progress and show it to you in a clear report, free of jargon.
A free analysis before any quote.
I measure your site's speed and show you the possible gains before I start. Then you decide, with no commitment.
- Measurement: PageSpeed score and Core Web Vitals, on mobile and desktop
- Diagnosis: images, scripts, caching, server
- Expected gains: what each fix can achieve
A report with priorities ranked by impact.
Before you get started.
PageSpeed scores, the effect on Google, whether you need a redesign: plain answers.
Google considers a score between 90 and 100 as "good", 50-89 as "needs improvement" and below 50 as "poor". In practice, targeting 80+ on mobile is a realistic and sufficient goal to gain a competitive advantage. The mobile score matters more than the desktop score.
Yes, since Core Web Vitals were integrated into the Google algorithm in May 2021. LCP (main content display speed), INP (interaction responsiveness) and CLS (visual stability) are official ranking factors. A fast site can gain several positions on competitive keywords.
It depends on the starting point, but a site that starts at 30-40 typically ends up at 70-85 after optimisation. The biggest gains come from image optimisation (often +20-30 points) and removing blocking scripts. I'll show you the expected gains before starting.
Not necessarily. Most optimisations (images, cache, minification, hosting) can be applied without touching the design. In some cases a very poorly coded theme requires partial rewriting - I flag this clearly in the audit.
Your site could be 3× faster.
I analyse your site for free and tell you exactly what's slowing it down and what you can gain.
SébastienI read and answer every enquiry myself.