nlaboratoire.com website review

Your mobile performance score is 76. Pages that score under 90 lose visitors before the first paint.

About 308 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 600 ms faster on a phone.

8 files block the first paint until they finish downloading. Deferring or inlining them could save about 650 ms.

Google Tag Manager costs a phone 165 ms of main-thread work and 303 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

8 third-party services load with your homepage (Google Tag Manager, Shopify and Clarity and others), adding 753 KiB and 441 ms of main-thread time.

7 images could be 100 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 150 ms faster on a phone.

Polyfills for old browsers add 40 KiB JavaScript that modern phones do not need. Google estimates it would make the page about 150 ms faster on a phone.

3 long tasks block the main thread while loading, the longest for 109 ms. During a long task the page ignores taps.

4 files are served with short cache lifetimes, so returning visitors download them again (26 KiB).

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

4 KiB JavaScript is shipped twice across bundles.

Your largest element takes 5.9 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image.

The page becomes fully interactive after 8.8 s. Good is under 3.8 s.

Visually, the page fills in at 3.9 s (Speed Index). Good is under 3.4 s.

Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.

Your homepage downloads 2.6 MB in 257 requests on a phone: scripts 904 KiB (64), other files 838 KiB (115) and images 617 KiB (39). Under 2 MB keeps phones on slow connections fast.

main-slider.png is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

By the Sustainable Web Design model, a visit to your homepage emits about 0.75 g of CO₂e: 89.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

25 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

2 tap targets are too small or too close together to hit reliably with a finger.

Scrollable region must have keyboard access: 1 element on the page fails this check, rated serious by axe-core.

All page content should be contained by landmarks: 1 element on the page fails this check, rated moderate by axe-core.

Elements with visible text labels do not have matching accessible names. (1 element).

Your title is only 15 characters: “Nutrimuscle Pro”. Between 30 and 65 characters leaves room to say what you do and for whom.

Your meta description is 273 characters; Google truncates after about 160, so the end of your pitch is cut.

The homepage links to 173 pages on nlaboratoire.com and 10 external pages.

https://nutrimuscle-pro.com/collections/energie-et-endurance, https://nutrimuscle-pro.com/collections/muscle-et-performance, https://nutrimuscle-pro.com/collections/recuperation-et-articulations, https://nutrimuscle-pro.com/collections/sante-et-equilibre, https://nutrimuscle-pro.com/collections/sommeil-anti-stress and https://nutrimuscle-pro.com/collections/digestion have no meta description, so Google writes the search snippet from whatever text it finds.

We fetched 15 pages linked from your homepage (of 82 found) and read each the way a search engine does.

1 error was logged to the browser console while the page loaded, for example “Identifier 'faqSelectElem' has already been declared”.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

Social proof on the homepage: 1 trust badge. Pairing it with named testimonials or customer logos makes it far more convincing.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

The homepage carries about 250 words of visible text.

Before a visitor clicks anything, the page loads Google Analytics, Google Tag Manager, Klaviyo and Microsoft Clarity (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.

Opening the homepage sets 7 cookies, 1 of them by other companies (measured from a US location before any click).

No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.

Loading the homepage contacts 14 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.