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nluug.nl

https://nluug.nl· First analyzed 04 May 2026· Updated 04 May 2026
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nluug.nl
Desktop screenshot of nluug.nl
Mobile screenshot of nluug.nl
Mobile

Sponsored

Hosting Provider

ProcoliX COLO

IP Address

185.206.232.64

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS51758

Organization

ProcoliX COLO

Server

Nginx

Nameservers

ns2.procolix.eu.ns3.protagio.org.ns1.protag.io.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
412 ms10%
Speed Index
536 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
8 KB
22 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
ProcoliX COLO

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

A80/100
26
4
0
Meta Tags8/15
Content8/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile3/4
Indexability3/3
N
nluug.nlnluug.nl

NLUUG

De website van de NLUUG, de vereniging van professionele gebruikers van open systemen en open standaarden

Title Length5 chars

Recommended: 50-60 chars (~33px / 580px)

Description Length105 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    2 URLs

    2 sub-sitemaps

    robots.txt

    2 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    13/100
    Poor
    4 12 1

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

    Sponsored

    AI & LLM Readiness

    C61/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    12/25
    Citation
    16/25

    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:7%
    Words:306
    Token eff.:Optimal
    Sections/1K:19.6
    Depth:2/5

    Structured Data

    4 JSON-LD
    Person×1.3(min)Organization×1.1WebSiteBreadcrumbListSpeakableSpecification×1.3SearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary36w
    Descriptive Headingsavg 2.2w
    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+
    91/100
    16
    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
    15/15
    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.
    78/100
    A+
    1 mg
    CO₂e / view
    8.0 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    1 mg
    vs
    Returning (cached)
    <0.001 g
    Annual (10K/mo)
    120 g
    Emission Segments
    Data Center
    <0.001 g
    Network
    <0.001 g
    Device
    <0.001 g
    Resource Breakdown
    HTML
    8.0 KB
    Green Hosting Not Verified
    ProcoliX COLO
    1 recommendation
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    100%Excellent
    Static / Informational

    HTTPS

    No WAF

    48d

    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

    24.03.2026

    Valid Until

    22.06.2026

    Subject Alternative Names (2)

    nluug.nlwww.nluug.nl

    SHA-256 Fingerprint

    C5:27:0F:E5:44:46:B8:D2:BB:8F:6E:FB:D7:84:6F:62:21:6D:57:1F...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-cache)
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    default-src 'none'; script-src 'self'; style-src 'self' 'uns...
    content-type
    text/html
    date
    Mon, 04 May 2026 22:04:11 GMT
    etag
    W/"69f86f4d-7f9e"
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (2)

    smtp1.protagio.nl
    smtp2.protagio.nl

    Domain Information

    nluug.nl

    Domain Age
    38y 4m

    Created

    28.12.1987

    Last Updated

    11.07.2025

    Registrar

    Registrar.eu

    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.
    B
    75/100
    Mobile Friendly9 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

    -apple-system

    WCAG AAA
    79/100
    Readability
    /30
    20/30

    16px · LH --

    Hierarchy
    /20
    15/20

    1.1x ratio · ✓ H1→H6

    WCAG
    /25
    24/25

    10.06:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    -apple-system

    Sans18px

    Body Font

    -apple-system

    Sans16px

    Contrast Ratio

    10.06:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~38 CPL

    Narrow lines
    18px
    h1
    18px
    h2
    18px
    h3
    16px
    p
    Minor Second
    Scale

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

    ❌ Very complex text: Flesch score 8/100. Consider shorter sentences and simpler words.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 10.1:1).

    ✅ 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.

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Flesch 8

    Color Palette

    7 unique colors
    Light
    #ffffff
    Text· 58.1%
    #26276a
    Primary· 21.000000000000004%
    #f9198b
    Primary· 9.6%
    #f5e3ed
    Primary· 4.5%
    #756b8a
    Secondary· 2.2%
    #401e6a
    Accent· 0.3%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Website Identity

    NLUUG

    NLUUG

    NGO

    NLUUG website met de doelstellingen, laatste nieuws en evenementen van onze vereniging.

    nluug.nl/
    38 years old
    Location detected: 🇳🇱 Netherlandsvia tld
    Registrar.eunl

    Social Profiles

    GitHub

    Sponsored

    Last analyzed: 04 May 2026 at 22:04

    Historical Analysis & Change Tracking