StackOptic
Back to Search
4en5mei.nl favicon

4en5mei.nl

https://4en5mei.nl· First analyzed 06 May 2026· Updated 06 May 2026
Export
4en5mei.nl
Desktop screenshot of 4en5mei.nl
Mobile screenshot of 4en5mei.nl
Mobile

Sponsored

Hosting Provider

Integrated B.V.

IP Address

62.221.211.120

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Haarlem, The Netherlands

ASN

AS48635

Organization

Integrated B.V.

Server

OpenResty

Nameservers

ns0.transip.net.ns1.transip.nl.ns2.transip.eu.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
838 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
8.7 MB
58 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.8.3
cms

Technology Stack

8 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Hotjar

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
OpenResty

Plugins

1
Yoast SEO

SEO Analysis

A80/100
23
6
0
Meta Tags8/15
Content10/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images4/7
Links4/5
URL5/5
Social5/5
Freshness4/4
Mobile3/4
Indexability3/3
4
4en5mei.nl4en5mei.nl

Homepage - Nationaal Comité 4 en 5 mei : Nationaal Comité 4 en 5 mei

Op 4 en 5 mei staan we samen stil bij vrijheid.

Title Length68 chars

Recommended: 50-60 chars (~415px / 580px)

Description Length47 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    12 URLs

    12 sub-sitemaps

    robots.txt

    6 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    36/100
    Needs Work
    10 7

    Sponsored

    AI & LLM Readiness

    D42/100
    Bot Access
    20/25
    Machine Read.
    1/25
    Schema Data
    8/25
    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
    Text ratio:8%
    Words:3,168
    Token eff.:Poor Structure

    Structured Data

    5 JSON-LD
    Organization×1.1WebSiteBreadcrumbListSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary363w
    Descriptive Headingsavg 4w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (11)
    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.
    B
    76/100
    14
    Passed
    1
    Critical
    2
    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
    5/15
    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
    5/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 recommendations
    • •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.
    13/100
    F
    1.10 g
    CO₂e / view
    8.7 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    1.26 g
    vs
    Returning (cached)
    629 mg
    Annual (10K/mo)
    132.0 kg
    Emission Segments
    Data Center
    246 mg
    Network
    264 mg
    Device
    590 mg
    Resource Breakdown
    JavaScript
    360.7 KB
    Images
    5.9 MB
    CSS
    2.4 MB
    HTML
    21.2 KB
    Green Hosting Not Verified
    Integrated B.V.
    8 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Interactive

    HTTPS

    No WAF

    40d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (4096 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    17.03.2026

    Valid Until

    15.06.2026

    Subject Alternative Names (1)

    www.4en5mei.nl

    SHA-256 Fingerprint

    99:F2:54:8B:ED:5C:76:0B:D7:19:C0:B1:A9:BA:5D:C4:D4:19:A2:F3...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    3550
    cache-control
    🔴 No Cache(must-revalidate, no-cache, public, private, proxy-revalidate)
    content-encoding
    📦 Gzip(gzip)
    content-length
    21414
    content-security-policy
    default-src 'self' 4net; script-src 'self' 'unsafe-inline' '...
    Good Warning Issue

    Email Infrastructure

    Barracuda

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (2)

    d322854.a.ess.de.barracudanetworks.com
    d322854.b.ess.de.barracudanetworks.com

    Domain Information

    4en5mei.nl

    Domain Age
    28y 3m

    Created

    22.01.1998

    Last Updated

    18.10.2024

    Registrar

    team.blue nl B.V.

    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
    Legitimate interest basis 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.
    B
    75/100
    Mobile Friendly25 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, shrink-to-fit=no
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Founders Grotesk

    WCAG AAA
    79/100
    Readability
    /30
    23/30

    18px · LH 1.40

    Hierarchy
    /20
    19/20

    2.5x ratio · ✓ H1→H6

    WCAG
    /25
    21/25

    8.83:1 min contrast

    Performance
    /25
    16/25

    1 font · 11 req

    Heading Font

    Founders Grotesk

    Sans45px

    Body Font

    Founders Grotesk

    Sans18px

    Contrast Ratio

    8.83:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~34 CPL

    Narrow lines
    45px
    h1
    85px
    h2
    45px
    h3
    22px
    h4
    18px
    p
    Minor Second
    Scale

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

    ✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 30/100. Simplify sentences for wider reach.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 8.8:1).

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

    ✅ Strong hierarchy: Headlines are 2.5x larger than body text.

    Buy on MyFontsFlesch 31

    Color Palette

    7 unique colors
    11.16:1 AAA Light
    #ffffff
    Background· 30.2%
    #3b3b3e
    Other· 15.3%
    #18202e
    Primary· 25.7%
    #0a1221
    Primary· 21.200000000000003%
    #142567
    Accent· 1.4%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    HotjarMid-Market

    User behavior and product analytics

    Privacy & Cookies

    1
    CookiebotMid-Market

    Cookie consent and privacy compliance tools

    2

    Categories

    4

    Total Tools

    0

    Enterprise

    2

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    11 Resources

    9
    Scripts
    2
    Styles
    5
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(2)consent.cookiebot.com(2)4en5mei.nl(2)static.hotjar.com(1)maps.googleapis.com(1)

    Website Identity

    Nationaal Comité 4 en 5 mei

    Nationaal Comité 4 en 5 mei

    Organization

    Op 4 en 5 mei staan we samen stil bij vrijheid.

    contact@onderwijsservicecentrum.nl
    0207183500
    www.4en5mei.nl/
    28 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    team.blue nl B.V.📧 Barracudanl-NL

    Sponsored

    Last analyzed: 06 May 2026 at 12:42

    Historical Analysis & Change Tracking