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universcience.fr

https://universcience.fr· First analyzed 19 May 2026· Updated 19 May 2026
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universcience.fr
Desktop screenshot of universcience.fr
Mobile screenshot of universcience.fr
Mobile

Sponsored

Hosting Provider

CELESTE

IP Address

83.118.219.16

Site Location

🇫🇷 Francevia tld

Server Location

🇫🇷 Gennevilliers, France

ASN

AS34177

Organization

CELESTE

Server

Apache

Nameservers

csidns.cite-sciences.fr.csidns2.cite-sciences.fr.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
689 ms10%
Speed Index
896 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
754 KB
42 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Technology Stack

7 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Hotjar

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Apachev2.4.62

Languages

1
PHPv8.2.31

SEO Analysis

C67/100
20
5
0
Meta Tags7/15
Content9/12
Headings8/8
Technical17/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
U
universcience.fruniverscience.fr

Accueil | Universcience

Né en 2010 du rapprochement de la Cité des sciences et de l'industrie et du Palais de la découverte, Universcience a pour objectif de rendre les sciences acc...

Description truncated.
Title Length23 chars

Recommended: 50-60 chars (~131px / 580px)

Description Length347 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    15 rules

    Local SEO

    Local Search Readiness

    12/100
    Poor
    4 13 2

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

    Sponsored

    AI & LLM Readiness

    D46/100
    Bot Access
    20/25
    Machine Read.
    13/25
    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

    Machine Readability

    llms.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    navheader/footer
    Text ratio:6%
    Words:322
    Token eff.:Optimal
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary30w
    Descriptive Headings
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    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
    89/100
    14
    Passed
    0
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    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
    6/15
    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.
    43/100
    B
    93 mg
    CO₂e / view
    754.2 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    107 mg
    vs
    Returning (cached)
    53 mg
    Annual (10K/mo)
    11.2 kg
    Emission Segments
    Data Center
    21 mg
    Network
    22 mg
    Device
    50 mg
    Resource Breakdown
    JavaScript
    128.6 KB
    Images
    42.4 KB
    CSS
    574.0 KB
    HTML
    6.5 KB
    Other
    2.8 KB
    Green Hosting Not Verified
    CELESTE
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Interactive

    HTTPS

    No WAF

    170d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    DigiCert Inc

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    05.11.2025

    Valid Until

    05.11.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (10)

    universcience.frbilletterie-etincelles.palais-decouverte.frbilletterie.cite-sciences.frbilletterie.palais-decouverte.frcms.palais-decouverte.frstatic.palais-decouverte.frwww.cite-sciences.frwww.palais-decouverte.fr+2 more

    SHA-256 Fingerprint

    83:B6:48:A9:D8:9F:60:F5:E8:A2:BE:18:26:58:E1:C3:DB:39:35:6B...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 2 Hours(max-age=7200)
    connection
    keep-alive
    content-encoding
    📦 Gzip(gzip)
    content-language
    fr-FR
    content-length
    6360
    content-security-policy
    frame-ancestors 'self' https://*.cite-sciences.fr https://*....
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (1)

    universcience-fr.mail.protection.outlook.com

    Domain Information

    universcience.fr

    Domain Age
    16y 6m

    Created

    19.11.2009

    Expires

    26.01.2027

    Last Updated

    27.01.2026

    Registrar

    CSC CORPORATE DOMAINS INC.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked

    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.
    C
    64/100
    Mobile Friendly1 breakpoint
    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=1.0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Trebuchet MS

    WCAG Partial
    46/100
    Readability
    /30
    11/30

    14px · LH 1.14

    Hierarchy
    /20
    12/20

    1.14x ratio · ✓ H1→H6

    WCAG
    /25
    10/25

    1:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 2 req

    Heading Font

    Trebuchet MS

    Sans16px

    Body Font

    Trebuchet MS

    Sans14px

    Contrast Ratio

    1:1

    4 issues

    Reading Comfort

    ~35 CPL

    Narrow lines
    16px
    h1
    14px
    p

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

    ⚠️ Tight line spacing (1.14). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 28/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

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

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

    Buy on MyFontsFlesch 28

    Color Palette

    6 unique colors
    2.38:1 Fail Dark
    #78756e
    Other· 34.7%
    #3b3c45
    Text· 12.5%
    #211117
    Primary· 17.7%

    Business & Marketing Stack

    3 Tools Detected

    Growing

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    HotjarMid-Market

    User behavior and product analytics

    1

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    17 Resources

    13
    Scripts
    4
    Styles
    5
    Async
    0
    Defer

    Top Script Sources

    analytics-eu.clickdimensions.com(4)googletagmanager.com(3)local(2)static.hotjar.com(1)script.hotjar.com(1)

    Website Identity

    universcience.fr

    16 years old
    Location detected: 🇫🇷 Francevia tld
    CSC CORPORATE DOMAINS INC.📧 Microsoft 365fr

    Social Profiles

    LinkedIn

    Sponsored

    Last analyzed: 19 May 2026 at 14:29

    Historical Analysis & Change Tracking