Certified Website Score for
gamma-formations.com
Maîtrisez les outils de demain avec Gamma. Votre plateforme de formation et d'accompagnement pour développer vos compétences technologiques.
First audit: November 25, 2025•Last audit: December 5, 2025
76
81Website Quality
64Trust & Security
84PageSpeed
Score trend
Latest audit — December 5, 2025
Deep, transparent insight into how this score is built: PageSpeed vitals, on‑page quality signals, and trust & security checks — all broken down into clear, verifiable items you can act on.
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Website Quality
1605
81/100
1605
Site Quality
Title
Gamma | Maîtrisez les outils de demain
38 chars (ideal 30–60)
Meta Description
Maîtrisez les outils de demain avec Gamma. Votre plateforme de formation et d'accompagnement pour développer vos compétences technologiques.
140 chars (ideal 120–160)
Favicon
https://gamma-formations.com/favicon.png
present
Viewport meta
width=device-width, initial-scale=1.0
correct (width=device-width, initial-scale=1)
robots.txt
User-agent: Googlebot
Allow: /
User-agent: Bingbot
Allow: /
User-agent: Twitterbot
Allow: /
User-agent: facebookexternalhit
Allow: /
User-agent: *
Allow: /
Disallow: /admin/
Disallow: /api/
Sitemap: https://gamma.com/sitemap.xml
perfect (User-agent + Allow + Sitemap)
Sitemap
https://gamma.com/sitemap.xml
present
llms.txt
present
present
Headings
missing (add H1, H2, H3, H4, H5, H6 tags to structure content)
Schema.org JSON-LD
missing (consider Organization, Article, Product, or FAQPage schemas)
Canonical URL
missing (add <link rel='canonical'> to avoid duplicate content)
HTML lang
en
present
Character encoding
UTF-8
present
Open Graph
Title
Gamma | Maîtrisez les outils de demain
present
Description
Maîtrisez les outils de demain avec Gamma. Votre plateforme de formation et d'accompagnement pour développer vos compétences technologiques.
present
Image
.png)
https://storage.googleapis.com/gpt-engineer-file-uploads/EMKcDp3KRKgnSX35mnxi9ZBxoxS2/social-images/social-1761818465425-Shots Mockups (3).png
present
URL
missing (add <meta property='og:url'> with full URL)
Type
website
present
Twitter Cards
Card Type
summary_large_image
present
Title
Gamma | Maîtrisez les outils de demain
present
Description
Maîtrisez les outils de demain avec Gamma. Votre plateforme de formation et d'accompagnement pour développer vos compétences technologiques.
present
Image
.png)
https://storage.googleapis.com/gpt-engineer-file-uploads/EMKcDp3KRKgnSX35mnxi9ZBxoxS2/social-images/social-1761818465425-Shots Mockups (3).png
present
Trust & Security
403
64/100
403
Security Headers
HTTPS
HTTPS enabled
HTTP Strict Transport Security
Strict-Transport-Security: max-age=63072000
Content Security Policy
missing (should be: Content-Security-Policy: default-src 'self')
Frame Protection
X-Frame-Options: DENY
MIME Type Protection
X-Content-Type-Options: nosniff
Domain Trust
Domain Age
no domain age records found
Registrar
no registrar record found
Country
no country record found
Infrastructure
Provider
Vercel
PageSpeed
87114
84/100
87114
54
Performance
100
SEO
96
Best Practices
86
Accessibility
Performance
54/100Largest Contentful Paint
19.3s
2.5s4.0s
First Contentful Paint
7.1s
1.8s3.0s
Total Blocking Time
212ms
200ms400ms
Cumulative Layout Shift
0.00
0.100.25
Speed Index
8.1s
3.4s5.4s
SEO
100/100Page isn’t blocked from indexing
Document has a `<title>` element
Document has a meta description
Page has successful HTTP status code
Links have descriptive text
Links are crawlable
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Best Practices
96/100Uses HTTPS
Avoids deprecated APIs
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No browser errors logged to the console
Issues were logged in the `Issues` panel in Chrome Devtools
Accessibility
86/100`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons do not have an accessible name
Image elements have `[alt]` attributes
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
ARIA attributes are used as specified for the element's role
Elements use only permitted ARIA attributes
Background and foreground colors do not have a sufficient contrast ratio.
Document has a `<title>` element
`<frame>` or `<iframe>` elements have a title
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
Links do not have a discernible name
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
Heading elements are not in a sequentially-descending order
Document has a main landmark.
Deprecated ARIA roles were not used
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