4ulet.com website review

Your mobile performance score is 72. Pages that score under 90 lose visitors before the first paint.

About 149 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 750 ms faster on a phone.

10 files block the first paint until they finish downloading. Deferring or inlining them could save about 550 ms.

9 images could be 342 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 50 ms faster on a phone.

A phone's processor spends 3.1 s on main-thread work while loading, 885 ms of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

The page has 2,297 HTML elements. Above 1,500, rendering and every interaction get slower on phones.

Shopify costs a phone 91 ms of main-thread work and 352 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.

6 third-party services load with your homepage (Shopify, growave.io and Bugsnag and others), adding 675 KiB and 160 ms of main-thread time.

19 KiB could be saved by minifying JavaScript.

33 files are served with short cache lifetimes, so returning visitors download them again (67 KiB).

3 long tasks block the main thread while loading, the longest for 85 ms. During a long task the page ignores taps.

Polyfills for old browsers add 6 KiB JavaScript that modern phones do not need.

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 11.4 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “Maîtrisez l’anglais, l’espagnol, l’allemand et le français …”.

The page becomes fully interactive after 11.5 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 15.8 MB in 232 requests on a phone: media 13.4 MB (2), scripts 745 KiB (78) and other files 714 KiB (78). Under 2 MB keeps phones on slow connections fast.

bg_2_home_LET.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 4.49 g of CO₂e: 538.3 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Summary elements must have discernible text: 3 elements on the page fail this check, rated serious by axe-core.

1 text element doesn't have enough contrast against the background to read easily, especially outdoors on a phone.

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

1 image has no alt text, which hurts accessibility and image search.

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

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

Headings skip levels (h2 → h6, h2 → h6 and h2 → h6), which makes the page harder to scan with a screen reader.

Elements with visible text labels do not have matching accessible names. (2 elements).

Your meta description is 216 characters; Google truncates after about 160, so the end of your pitch is cut.

No XML sitemap at https://4ulet.fr/sitemap.xml, so Google discovers your pages only by following links.

The homepage links to 92 pages on 4ulet.com and 18 external pages.

Your homepage links to /pages/nos-cours-prives, /pages/formation-espagnol-professionnel, /pages/formation-allemand-professionnel, /pages/faq-et-temoignages and /blogs/news, which answer with an error. Visitors hit a dead end and search engines drop them.

We fetched 15 pages linked from your homepage (of 23 found) and read each the way a search engine does.

4 of 15 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

1 error was logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

3 links from your homepage to your own site are broken, for example https://4ulet.fr/pages/nos-cours-prives (503).

HSTS is set, but max-age is 91 days; one year is the recommended minimum.

2 links go through two or more redirects, for example https://4ulet.fr/customer_authentication/redirect?locale=fr&region_country=FR.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

X-XSS-Protection is set to “1; mode=block”; the header is deprecated and can introduce bugs. Use 0 or remove it.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

4ulet.fr is registered until Jan 2027. Make sure auto-renew is on and the card on file is current.

4ulet.fr has no CAA record, so any certificate authority may issue a certificate for it. A CAA record naming your provider (for example letsencrypt.org) closes that door.

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 analytics or tag manager detected in the HTML, so you can't measure whether any of these fixes work.

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 1,175 words of visible text.

DMARC is set to p=none, so mail pretending to be 4ulet.com is still delivered. Reports are on, so moving to quarantine is the next step.

We found no DKIM key on the selectors the big email providers use. If you send through one of them, turning on DKIM signing improves delivery.

Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

Before a visitor clicks anything, the page loads Google Analytics and 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 8 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 12 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.