jhm.fr website review

28 files block the first paint until they finish downloading. Deferring or inlining them could save about 3.0 s.

About 207 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 900 ms faster on a phone.

Your mobile performance score is 66. Pages that score under 90 lose visitors before the first paint.

About 758 KiB of JavaScript is downloaded but never used on this page.

8 third-party services load with your homepage (Google CDN, Google Tag Manager and Google Maps and others), adding 1.6 MB and 581 ms of main-thread time.

9 files are served with short cache lifetimes, so returning visitors download them again (376 KiB).

Google CDN costs a phone 284 ms of main-thread work and 741 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.

The page has 2,700 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Google Maps costs a phone 119 ms of main-thread work and 393 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 image could be 87 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 250 ms faster on a phone.

5 long tasks block the main thread while loading, the longest for 146 ms. During a long task the page ignores taps.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 50 ms).

11 KiB could be saved by minifying JavaScript.

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.

Real Chrome users on phones do not pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.

The page becomes fully interactive after 16.4 s. Good is under 3.8 s.

Your largest element takes 5.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “A5 : sur le chantier géant d’APRR qui se clôt avec une sema…”.

The first text or image appears after 3.5 s on a phone. Good is under 1.8 s.

Real visitors wait 2.7 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors wait 210 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Real visitors see the first content after 2.4 s (75th percentile). Good is under 1.8 s.

Real visitors wait 1.7 s for your server to start answering (75th percentile). Good is under 800 ms.

Visually, the page fills in at 5.5 s (Speed Index). Good is under 3.4 s.

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

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' tap response (inp) went from 170 ms to 172 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-24, real Chrome visitors' largest content (lcp) went from 2.2 s to 2.4 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 3.0 MB in 103 requests on a phone: scripts 1.6 MB (44), images 484 KiB (20) and other files 357 KiB (5). Under 2 MB keeps phones on slow connections fast.

4 images further down the page (210 KiB) download before anyone scrolls to them. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 0.86 g of CO₂e: 103.2 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Images must have alternative text: 1 element on the page fails this check, rated critical by axe-core.

1 dropdown has no label.

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

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

All page content should be contained by landmarks: 5 elements on the page fail this check, rated moderate by axe-core.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 1 element on the page fails this check, rated moderate by axe-core.

20 visible links have no text or label, so screen readers cannot say where they go.

3 form fields have no label, so screen readers announce an empty box and autofill guesses.

Headings skip levels (h2 → h4), which makes the page harder to scan with a screen reader.

No Open Graph image, so links shared on LinkedIn, Slack or Facebook show no preview picture.

3 links have no real href, so search engines can't follow them.

The homepage links to 528 pages on jhm.fr and 5 external pages.

There is no https://jhm.fr/llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.

We fetched 15 pages linked from your homepage (of 192 found) and read each the way a search engine does.

324 of 377 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

The page uses 1 deprecated browser API that will stop working in future browsers (“Unload event listeners are deprecated and will be removed.”).

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.

Social proof on the homepage: 268 testimonial or review blocks. Pairing it with named testimonials or customer logos makes it far more convincing.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach 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 1,821 words of visible text.

Before a visitor clicks anything, the page loads Google Tag Manager (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 12 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 16 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.