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efrei.fr

https://efrei.fr· First analyzed 18 May 2026· Updated 18 May 2026
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efrei.fr
Desktop screenshot of efrei.fr
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Mobile

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Hosting Provider

OVHcloud
ovhcloud.com

IP Address

51.210.229.203

Site Location

🇫🇷 Francevia phone

Server Location

🇫🇷 Roubaix, France

ASN

AS16276

Organization

HOMRI Kevin

Server

Apache

Nameservers

ns-198-a.gandi.net.ns-25-c.gandi.net.ns-4-b.gandi.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
681 ms10%
Speed Index
885 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.5 MB
72 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
Efreiv1.0.0Custom
by Brainsonic

Technology Stack

13 Technologies Detected

Plugins

6
Hubspot Content Embed
WPML
Webtoffee Cookie Consent
Yoast SEO
WP Rocket
WPML

Analytics

2
Google Analytics
Microsoft Clarity

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Marketing

1
HubSpot

Web Servers

1
Apache

SEO Analysis

A82/100
24
6
1
Meta Tags14/15
Content11/12
Headings6/8
Technical24/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile1/4
Indexability3/3
E
efrei.frefrei.fr

Grande école généraliste et numérique - Efrei

Grande école d'ingénieurs informatique et d'experts du numérique habilitée par la Cti. Prépa, cycle ingénieur, BTS, bachelor, master, mastère.

Title Length45 chars

Recommended: 50-60 chars (~273px / 580px)

Description Length142 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (17/32) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

32/100
Needs Work
9 9

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AI & LLM Readiness

D52/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
7/25
Citation
15/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:6%
Words:1,976
Token eff.:Optimal

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary38w
Descriptive Headingsavg 5.8w
Canonical URL
Open Graph2/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
B
75/100
14
Passed
2
Critical
3
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
2/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •Accessibility recommendation preview...
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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
42/100
F
364 mg
CO₂e / view
3.5 MB
Page Weight
15%
Cleaner Than
New Visitor
416 mg
vs
Returning (cached)
208 mg
Annual (10K/mo)
43.7 kg
Emission Segments
Data Center
18 mg
Network
107 mg
Device
239 mg
Resource Breakdown
JavaScript
240.3 KB
Images
2.9 MB
CSS
324.2 KB
HTML
30.9 KB
Green Hosting Verified
OVHcloud
GWF Verified
5 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

32d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

21.03.2026

Valid Until

19.06.2026

Subject Alternative Names (1)

www.efrei.fr

SHA-256 Fingerprint

9D:85:6A:D9:9A:7B:D0:CB:34:CA:07:4C:44:B7:80:75:1F:36:57:5B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0)
content-encoding
📦 Gzip(gzip)
content-length
31380
content-type
text/html; charset=UTF-8
date
Mon, 18 May 2026 16:44:04 GMT
expires
Mon, 18 May 2026 16:44:04 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

efrei-fr.mail.protection.outlook.com

Domain Information

efrei.fr

Domain Age
31y 4m

Created

31.12.1994

Expires

10.05.2027

Last Updated

15.04.2026

Registrar

GANDI

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
B
78/100
Mobile Friendly40 breakpoints
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1
1 recommendation
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Gilroy

WCAG AA
77/100
Readability
/30
25/30

16px · LH 1.50

Hierarchy
/20
19/20

4.5x ratio · ✓ H1→H6

WCAG
/25
17/25

5.14:1 min contrast

Performance
/25
16/25

1 font · 7 req

Heading Font

Gilroy

Sans72px

Body Font

Gilroy

Sans16px

Contrast Ratio

5.14:1

WCAG AA (≥4.5:1)

Reading Comfort

~57 CPL

Optimal (45–75)
72px
h1
42px
h2
32px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~57 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 27/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.1:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

Buy on MyFontsFlesch 27

Color Palette

8 unique colors
7.96:1 AAA Dark
#2c2e2e
Text· 28.099999999999998%
#c3c6c9
Other· 3.6%
#111719
Secondary· 18.1%
#fffffe
Primary· 8.9%
#4c5862
Secondary· 7.7%

Business & Marketing Stack

4 Tools Detected

Enterprise

CRM Systems

1
HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

3

Categories

4

Total Tools

0

Enterprise

2

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

25 Resources

20
Scripts
5
Styles
5
Async
1
Defer

Top Script Sources

efrei.fr(10)googletagmanager.com(3)mgt.efrei.fr(2)js-eu1.hs-scripts.com(1)js-eu1.hs-banner.com(1)

Website Identity

Efrei

Efrei

Organization

Grande école d'ingénieurs informatique et d'experts du numérique habilitée par la Cti. Prépa, cycle ingénieur, BTS, bachelor, master, mastère.

admissions@efrei.fr
+33188289000
www.efrei.fr/
31 years old

Accueil+33 188 289 000

Location detected: 🇫🇷 Francevia phone
GANDI📧 Microsoft 365fr-FR

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Last analyzed: 18 May 2026 at 16:44

Historical Analysis & Change Tracking