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sckcen.be

https://sckcen.be· First analyzed 13 May 2026· Updated 13 May 2026
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sckcen.be
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Mobile

Sponsored

Hosting Provider

Level 27 BVBA

IP Address

194.32.155.21

Site Location

🇧🇪 Belgiumvia tld

Server Location

🇧🇪 Brussels, Belgium

ASN

AS59943

Organization

Level 27 BVBA

Nameservers

ns.sckcen.be.ns2.sckcen.be.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
986 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.4 MB
32 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
Drupal
Infrastructure
Hosting
Level 27 BVBA

Progressive Web App

PWA ReadyWeb ManifestService WorkerApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Advertising

1
LinkedIn Ads

SEO Analysis

B78/100
24
4
0
Meta Tags13/15
Content11/12
Headings8/8
Technical17/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness2/4
Mobile4/4
Indexability3/3
S
sckcen.besckcen.be

Belgian Nuclear Research Centre | SCK CEN

The Belgian Nuclear Research Centre is a global leader in the field of nuclear research, services and education.

Title Length41 chars

Recommended: 50-60 chars (~245px / 580px)

Description Length112 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    59 rules

    Local SEO

    Local Search Readiness

    10/100
    Poor
    3 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.
    11/25
    Schema Data
    0/25
    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
    nav
    Text ratio:3%
    Words:755
    Token eff.:Optimal
    Sections/1K:19.9
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary239w
    Descriptive Headingsavg 5.2w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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
    84/100
    13
    Passed
    1
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    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.
    44/100
    C
    176 mg
    CO₂e / view
    1.4 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    201 mg
    vs
    Returning (cached)
    101 mg
    Annual (10K/mo)
    21.1 kg
    Emission Segments
    Data Center
    39 mg
    Network
    42 mg
    Device
    94 mg
    Resource Breakdown
    JavaScript
    58.0 KB
    Images
    1.3 MB
    CSS
    56.7 KB
    HTML
    26.8 KB
    Other
    300 B
    Green Hosting Not Verified
    Level 27 BVBA
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Interactive

    HTTPS

    No WAF

    156d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    Hellenic Academic and Research Institutions CA

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    01.04.2026

    Valid Until

    17.10.2026

    Subject Alternative Names (2)

    www.sckcen.besckcen.be

    SHA-256 Fingerprint

    58:05:ED:13:30:46:F5:27:5F:E4:9E:01:CD:CB:83:9F:87:90:7B:8C...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(must-revalidate, no-cache, private)
    content-encoding
    📦 Gzip(gzip)
    content-language
    en
    content-security-policy
    default-src 'self' 'unsafe-inline' data:; script-src 'self' ...
    content-type
    text/html; charset=UTF-8
    date
    Wed, 13 May 2026 17:07:56 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    sckcen-be.mail.protection.outlook.com

    Domain Information

    sckcen.be

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    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.
    A
    83/100
    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

    Typography & Readability

    Raisonne + -apple-system

    WCAG Partial
    69/100
    Readability
    /30
    26/30

    16px · LH 1.50

    Hierarchy
    /20
    18/20

    4.25x ratio · ✓ H1→H6

    WCAG
    /25
    11/25

    2.32:1 min contrast

    Performance
    /25
    14/25

    System fonts

    Heading Font

    Raisonne

    Sans68px

    Body Font

    -apple-system

    Sans16px

    Contrast Ratio

    2.32:1

    2 issues

    Reading Comfort

    ~35 CPL

    Narrow lines
    68px
    h1
    46px
    h2
    24px
    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).

    ⚠️ Hard to read: Flesch score 48/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 2.3:1).

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

    ✅ Strong hierarchy: Headlines are 4.2x larger than body text.

    AAdobe FontsBuy on MyFontsFlesch 48

    Color Palette

    11 unique colors
    Light
    #ffffff
    Primary· 61.5%
    #dee1e9
    Secondary· 7.1%
    #c6cbd5
    Secondary· 4.4%
    #eff1f5
    Secondary· 4.3%
    #3b2d56
    Secondary· 4%
    #695a96
    Secondary· 4%
    #8268b1
    Secondary· 3.3%
    #a2a4b3
    Secondary· 2.9%

    Business & Marketing Stack

    4 Tools Detected

    Enterprise

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    LinkedIn AdsEnterprise

    Ad platforms and retargeting pixels

    Privacy & Cookies

    1
    CookiebotMid-Market

    Cookie consent and privacy compliance tools

    3

    Categories

    4

    Total Tools

    1

    Enterprise

    1

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    13 Resources

    9
    Scripts
    4
    Styles
    4
    Async
    0
    Defer

    Top Script Sources

    local(3)googletagmanager.com(2)consent.cookiebot.com(2)snap.licdn.com(1)consentcdn.cookiebot.com(1)

    Website Identity

    sckcen.be

    Location detected: 🇧🇪 Belgiumvia tld
    📧 Microsoft 365en

    Social Profiles

    X (Twitter)LinkedIn

    Sponsored

    Last analyzed: 13 May 2026 at 17:08

    Historical Analysis & Change Tracking