blackprotein.com website review

Your mobile performance score is 87. Pages that score under 90 lose visitors before the first paint.

2 files block the first paint until they finish downloading. Deferring or inlining them could save about 150 ms.

1 long task block the main thread while loading, the longest for 57 ms. During a long task the page ignores taps.

2 third-party services load with your homepage (Shopify and shop.app), adding 64 KiB and 21 ms of main-thread time.

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

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

Your largest element takes 3.5 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image. Most of its time is resource load delay (1.5 s).

Visually, the page fills in at 4.6 s (Speed Index). Good is under 3.4 s.

The first text or image appears after 1.9 s on a phone. Good is under 1.8 s.

Over the last 25 four-week periods to 2026-11-07, real Chrome visitors' tap response (inp) went from 70 ms to 67 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

FuriousBlack_BlackProtein_Desktop.jpg 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 0.29 g of CO₂e: 34.9 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

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

Your title is only 27 characters: “Black Protein site officiel”. Between 30 and 65 characters leaves room to say what you do and for whom.

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

Your <h1> is empty.

The homepage links to 26 pages on blackprotein.com and 5 external pages.

https://blackprotein.com/collections/tous-les-produits, https://blackprotein.com/pages/histoire-de-black-protein and https://blackprotein.com/pages/origine-de-la-proteine have no meta description, so Google writes the search snippet from whatever text it finds.

https://blackprotein.com/pages/histoire-de-black-protein and https://blackprotein.com/pages/origine-de-la-proteine have no <h1> headline, so visitors and search engines get no clear main topic.

We fetched 8 pages linked from your homepage and read each the way a search engine does.

3 of 11 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

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

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

The homepage has only about 192 words of visible text; thin pages give Google and first-time buyers little to go on.

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

Opening the homepage sets 5 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 2 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.