legrand.fr website review

33 files are served with short cache lifetimes, so returning visitors download them again (329 KiB).

Your mobile performance score is 80. Pages that score under 90 lose visitors before the first paint.

About 202 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 400 ms faster on a phone.

Google Tag Manager costs a phone 369 ms of main-thread work and 392 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.

1 file blocks the first paint until they finish downloading. Deferring or inlining it could save about 300 ms.

7 third-party services load with your homepage (Google Tag Manager, piwik.pro and Bing Ads and others), adding 596 KiB and 470 ms of main-thread time.

About 34 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 150 ms faster on a phone.

4 long tasks block the main thread while loading, the longest for 167 ms. During a long task the page ignores taps.

1 image could be 14 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.

The HTML itself could arrive sooner: redirects, a slow server response or missing compression delay everything after it.

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

Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

Your largest element takes 4.4 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 8.0 s. Good is under 3.8 s.

Visually, the page fills in at 4.2 s (Speed Index). Good is under 3.4 s.

1 image have no width and height attributes, so the layout jumps as each one loads.

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 177 ms to 193 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 1.0 s to 1.1 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

legrand-gammes-interrupteurs-et-prises-400x132.jpg.webp 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 0.39 g of CO₂e: 46.5 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

ARIA dialog and alertdialog nodes should have an accessible name: 1 element on the page fails this check, rated serious by axe-core.

1 visible link has no text or label, so screen readers cannot say where it goes.

ARIA role should be appropriate for the element: 2 elements on the page fail this check, rated minor by axe-core.

Your title is 79 characters, so Google will cut it off around 60: “Legrand - Spécialiste des infrastructures électriques et numériques du bâtiment”.

Your meta description is 171 characters; Google truncates after about 160, so the end of your pitch is cut.

Structured data found (Organization) but with 2 problems, for example “Organization: missing name”.

No favicon is declared in the HTML, so browser tabs and Google's mobile results may show a generic icon.

No twitter:card tag. X falls back to Open Graph, which is set, so this is minor.

The homepage links to 172 pages on legrand.fr and 10 external pages.

Your Organization JSON-LD is missing name, sameAs (social profiles), description and contact details. These are the facts AI assistants use to describe a business and to tell it apart from others with a similar name.

https://www.legrand.fr/catalogue/comparateur is marked noindex but linked from your homepage. If it is meant to be found, remove the noindex.

https://www.legrand.fr/liste-materiel and https://www.legrand.fr/catalogue/comparateur have no meta description, so Google writes the search snippet from whatever text it finds.

https://www.legrand.fr/liste-materiel has no <h1> headline, so visitors and search engines get no clear main topic.

https://www.legrand.fr/catalogue/interrupteurs-et-prises/boite-dencastrement took over 3 s to send its HTML from our server.

We fetched 15 pages linked from your homepage (of 116 found) and read each the way a search engine does.

1 image failed to load on a phone, for example https://bat.bing.net/action/0?ti=5783815&tm=gtm002&Ver=2&mid=fee1f9ac-6057-4ee3-80b5-4207f72947fe&bo=3&pi=918639831&lg=en-US&sw=390&sh=844&sc=24&nwd=1&tl=Legrand%20-%20Sp%C3%A9cialiste%20des%20infrast.

20 of 52 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

2 errors were logged to the browser console while the page loaded, for example “Unrecognized Content-Security-Policy directive 'self'.”.

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

We found no call-to-action buttons or links (such as “Book a demo” or “Get a quote”) anywhere on the homepage.

No testimonials, customer logos, ratings or customer counts on the homepage: nothing tells a new visitor that others already trust you.

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 644 words of visible text.

Before a visitor clicks anything, the page loads Google Analytics, Google Tag Manager and Microsoft Ads (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 6 cookies (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 9 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.