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stl.nl

https://stl.nl· First analyzed 31 May 2026· Updated 31 May 2026
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stl.nl
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Mobile screenshot of stl.nl
Mobile

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Hosting Provider

Microsoft Azure
azure.microsoft.com

IP Address

74.178.158.129

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Amsterdam, Netherlands

ASN

AS8075

Organization

Microsoft Azure Cloud (westeurope)

Server

Kestrel

Nameservers

ns1.argewebhosting.eu.ns3.argewebhosting.nl.ns2.argewebhosting.com.

Performance

88

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.9 MB
47 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Kentico

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Advertising

1
Snapchat Pixel

SEO Analysis

A86/100
26
4
0
Meta Tags14/15
Content10/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness4/4
Mobile4/4
Indexability3/3
S
stl.nlstl.nl

Sectorinstituut Transport en logistiek - STL

Wat er ook verandert, in transport en logistiek zijn goede mensen altijd nodig. Maar hoe vind je ze? Hoe word en blijf je goed? STL werkt. Voor jou!

Title Length44 chars

Recommended: 50-60 chars (~261px / 580px)

Description Length148 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    899 URLs

    robots.txt

    7 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    31/100
    Needs Work
    9 11

    Sponsored

    AI & LLM Readiness

    D40/100
    Bot Access
    20/25
    Machine Read.
    5/25
    Schema Data
    2/25
    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:11%
    Words:6,661
    Token eff.:Excessive

    Structured Data

    1 JSON-LD
    Organization×1.1

    Citation Readiness

    Opening Summary30w
    Descriptive Headings
    Canonical URL
    Open Graph2/3
    Twitter Card0/3
    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
    73/100
    11
    Passed
    4
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    6/20
    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
    11/15
    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.
    2 recommendations
    • •Accessibility recommendation preview...
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    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.
    62/100
    C
    195 mg
    CO₂e / view
    1.9 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    222 mg
    vs
    Returning (cached)
    111 mg
    Annual (10K/mo)
    23.3 kg
    Emission Segments
    Data Center
    10 mg
    Network
    57 mg
    Device
    128 mg
    Resource Breakdown
    JavaScript
    176.4 KB
    Images
    1.5 MB
    CSS
    126.7 KB
    Fonts
    1.1 KB
    HTML
    42.5 KB
    Other
    900 B
    Green Hosting Verified
    Microsoft Azure
    Provider Match
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    174d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    Sectigo Limited

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    21.10.2025

    Valid Until

    21.11.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.stl.nlstl.nl

    SHA-256 Fingerprint

    55:6F:13:8E:DA:25:82:CD:2F:BC:21:AE:5A:45:79:03:76:83:01:5D...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    date
    Sun, 31 May 2026 10:40:54 GMT
    server
    Kestrel
    vary
    Accept-Encoding
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    73

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (3)

    fallback.yourfilter.nl
    stl-nl.mail.protection.outlook.com
    primary.yourfilter.nl

    Domain Information

    stl.nl

    Domain Age
    27y 8m

    Created

    16.09.1998

    Last Updated

    30.11.2021

    Registrar

    Realtime Register

    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
    78/100
    Mobile Friendly24 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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Ubuntu

    WCAG Partial
    74/100
    Readability
    /30
    20/30

    20px · LH --

    Hierarchy
    /20
    16/20

    2.4x ratio · ✓ H1→H6

    WCAG
    /25
    18/25

    1:1 min contrast

    Performance
    /25
    20/25

    1 font · 1 req

    Heading Font

    Ubuntu

    Sans48px

    Body Font

    Ubuntu

    Sans20px

    Contrast Ratio

    1:1

    2 issues

    Reading Comfort

    ~40 CPL

    Narrow lines
    48px
    h1
    36px
    h2
    37px
    h3
    20px
    p

    ✅ Excellent readability: 20px body text is ideal for all devices.

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 2.4x larger than body text.

    ✅ Lean font stack: 1 font families keeps load times fast.

    ✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

    GGoogle FontsFlesch 67

    Color Palette

    7 unique colors
    Light
    #005188
    Primary· 25.1%
    #f2fafd
    Background· 23%
    #ccecf9
    Primary· 21.5%
    #133457
    Accent· 10%
    #75a9b6
    Secondary· 7.9%
    #d2d9df
    Secondary· 7.3%
    #30688e
    Secondary· 5%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    CookiebotMid-Market

    Cookie consent and privacy compliance tools

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    18 Resources

    14
    Scripts
    4
    Styles
    11
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(4)local(4)youtube.com(2)consent.cookiebot.eu(2)cdn-eu.readspeaker.com(1)

    Website Identity

    Sectorinstituut transport en logistiek

    Organization
    [email protected]
    0882596111
    www.stl.nl/
    27 years old

    Kampenringweg 43, Gouda

    2803 PE, Gouda, Zuid-Holland

    Nederland

    Location detected: 🇳🇱 Netherlandsvia tld
    Realtime Register📧 Microsoft 365nl

    Sponsored

    Last analyzed: 31 May 2026 at 10:41

    Historical Analysis & Change Tracking

    stl.nl Technology Stack - Built With Tailwind CSS, Google Fonts, Google Analytics, Google Analytics 4, Google Tag Manager | StackOptic | StackOptic