StackOptic
Back to Search
centralelille.fr favicon

centralelille.fr

https://centralelille.fr· First analyzed 16 May 2026· Updated 16 May 2026
Export
centralelille.fr
Desktop screenshot of centralelille.fr
Mobile screenshot of centralelille.fr
Mobile

Sponsored

Hosting Provider

O2switch Sarl

IP Address

109.234.166.131

Site Location

🇫🇷 Francevia tld

Server Location

🇫🇷 Clermont-Ferrand, France

ASN

AS50474

Server

o2switch-PowerBoost-v3

Nameservers

ns2.centralelille.fr.ns1.centralelille.fr.

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.8 MB
69 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Technology Stack

15 Technologies Detected

Plugins

9
FormidableFormidablepro 2 PdfRevsliderWp Font Awesome
WPML
Complianz GdprEmail Encoder BundleBellows Pro
WPML

Libraries

1
jQueryv3.7.1

Other

1
GSAP

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Analytics

1
Google Analytics

SEO Analysis

C69/100
19
10
0
Meta Tags12/15
Content10/12
Headings5/8
Technical18/25
E-E-A-T3/7
Images4/7
Links2/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
C
centralelille.frcentralelille.fr

Centrale Lille – Enseignement et Recherche

Les écoles d'ingénieurs Quatre écoles d’ingénieur au cœur des enjeux sociétaux. École Centrale Lille Devenez Ingénieur Généraliste ENSCL Devene...

Description truncated.
Title Length42 chars

Recommended: 50-60 chars (~252px / 580px)

Description Length311 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    7 URLs

    7 sub-sitemaps

    robots.txt

    Local SEO

    Local Search Readiness

    18/100
    Poor
    5 11 2

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    D41/100
    Bot Access
    20/25
    Machine Read.
    8/25
    Schema Data
    0/25
    Citation
    13/25

    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
    data-nosnippet

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:4%
    Words:1,152
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary667w
    Descriptive Headingsavg 7.6w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    Sponsored

    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.
    A
    88/100
    15
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    18/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    15/15
    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
    13/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    12/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

    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.
    37/100
    D
    227 mg
    CO₂e / view
    1.8 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    260 mg
    vs
    Returning (cached)
    130 mg
    Annual (10K/mo)
    27.3 kg
    Emission Segments
    Data Center
    51 mg
    Network
    55 mg
    Device
    122 mg
    Resource Breakdown
    JavaScript
    555.4 KB
    Images
    409.7 KB
    CSS
    837.1 KB
    HTML
    36.4 KB
    Green Hosting Not Verified
    O2switch Sarl
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    85d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    11.05.2026

    Valid Until

    09.08.2026

    Subject Alternative Names (1)

    centralelille.fr

    SHA-256 Fingerprint

    54:3E:5A:B8:86:6F:1D:99:50:7F:C2:81:EA:A0:C9:E5:8C:A1:47:6C...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=UTF-8
    date
    Sat, 16 May 2026 20:10:03 GMT
    link
    <https://centralelille.fr/>; rel=shortlink
    server
    o2switch-PowerBoost-v3
    vary
    Accept-Encoding
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    73

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (4)

    mx02.cloud.vadesecure.com
    mx01.cloud.vadesecure.com
    mx04.cloud.vadesecure.com
    mx03.cloud.vadesecure.com

    Domain Information

    centralelille.fr

    Domain Age
    10y 9m

    Created

    27.07.2015

    Expires

    27.07.2026

    Last Updated

    31.08.2025

    Registrar

    GIP RENATER

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Complianz

    Cookie Consent Banner
    Complianz
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Complianz
    Data Protection Officer mentioned

    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.
    A
    84/100
    Mobile Friendly3 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...
    Upgrade to view recommendations

    Typography & Readability

    Mulish + Open Sans

    WCAG Partial
    57/100
    Readability
    /30
    16/30

    18px · LH 1.17

    Hierarchy
    /20
    12/20

    1.39x ratio

    WCAG
    /25
    18/25

    1:1 min contrast

    Performance
    /25
    11/25

    2 fonts · 9 req

    Heading Font

    Mulish

    Sans25px

    Body Font

    Open Sans

    Sans18px

    Contrast Ratio

    1:1

    19 issues

    Reading Comfort

    ~33 CPL

    Narrow lines
    25px
    h1
    36px
    h2
    16px
    h4
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ⚠️ Tight line spacing (1.17). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 18/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 19 elements below WCAG AA threshold (min 1.0:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    Buy on MyFontsFluid Type (rem)Flesch 18

    Color Palette

    11 unique colors
    7.49:1 AAA Light
    #ffffff
    Background· 22.6%
    #50555e
    Text· 20%
    #2c3c49
    Secondary· 13.6%
    #5e6f80
    Secondary· 6.1%
    #0f1e26
    Primary· 4.9%
    #314b5e
    Secondary· 4.5%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    ComplianzSMB

    Cookie consent and privacy compliance tools

    2

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    19 Resources

    9
    Scripts
    10
    Styles
    3
    Async
    1
    Defer

    Top Script Sources

    centralelille.fr(8)googletagmanager.com(1)

    Website Identity

    centralelille.fr

    10 years old
    Location detected: 🇫🇷 Francevia tld
    GIP RENATERfr-FR

    Social Profiles

    YouTubeTikTok

    Sponsored

    Last analyzed: 16 May 2026 at 20:10

    Historical Analysis & Change Tracking