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volkerwessels.com

https://volkerwessels.com· First analyzed 16 May 2026· Updated 16 May 2026
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volkerwessels.com
Desktop screenshot of volkerwessels.com
Mobile screenshot of volkerwessels.com
Mobile

Sponsored

Hosting Provider

SENTIA

IP Address

89.30.229.201

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS8315

Server

Apache

Nameservers

ns1.premium-dns.net.ns2.premium-dns.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
659 ms10%
Speed Index
857 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
8.1 MB
45 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
SENTIA

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Other

2
GSAPv3.12.5AOS (Animate On Scroll)

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

B75/100
24
4
0
Meta Tags9/15
Content11/12
Headings8/8
Technical19/25
E-E-A-T0/7
Images7/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
V
volkerwessels.comvolkerwessels.com

Home | VolkerWessels

De toekomst maken dat doen we nu. Met slimme oplossingen en oog voor verbetering. Klimaatverandering en energietransitie vragen om anders ontwikkelen,

Title Length20 chars

Recommended: 50-60 chars (~123px / 580px)

Description Length150 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,382 URLs

    robots.txt

    46 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    15/100
    Poor
    4 12 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:5%
    Words:1,157
    Token eff.:Optimal
    Sections/1K:12.1
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary41w
    Descriptive Headingsavg 4.2w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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
    85/100
    13
    Passed
    2
    Critical
    0
    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
    9/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    9/15
    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.
    30/100
    F
    1.03 g
    CO₂e / view
    8.1 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    1.18 g
    vs
    Returning (cached)
    590 mg
    Annual (10K/mo)
    123.8 kg
    Emission Segments
    Data Center
    230 mg
    Network
    248 mg
    Device
    554 mg
    Resource Breakdown
    JavaScript
    85.0 KB
    Images
    8.0 MB
    CSS
    44.0 KB
    Fonts
    1.1 KB
    HTML
    17.0 KB
    Other
    15.7 KB
    Green Hosting Not Verified
    SENTIA
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A

    Security Score

    81%Very Good
    Interactive

    HTTPS

    No WAF

    79d

    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

    05.05.2026

    Valid Until

    03.08.2026

    Subject Alternative Names (2)

    volkerwessels.comwww.volkerwessels.com

    SHA-256 Fingerprint

    4C:0E:EB:9F:2B:2F:2D:57:04:21:19:F0:AC:EF:AD:69:73:F9:75:01...

    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
    nl
    content-length
    17082
    content-security-policy
    frame-ancestors 'self'; report-uri /report-csp-violation
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (1)

    volkerwessels-com.mail.protection.outlook.com

    Domain Information

    volkerwessels.com

    Domain Age
    24y 4m

    Created

    10.01.2002

    Expires

    10.01.2027

    Last Updated

    18.04.2026

    Registrar

    Metaregistrar BV

    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.
    C
    68/100
    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, minimum-scale=1.0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    IBM Plex Sans

    WCAG Partial
    80/100
    Readability
    /30
    22/30

    18px · LH 1.80

    Hierarchy
    /20
    20/20

    4.44x ratio · ✓ H1→H6

    WCAG
    /25
    18/25

    1:1 min contrast

    Performance
    /25
    20/25

    1 font · 1 req

    Heading Font

    IBM Plex Sans

    Sans80px

    Body Font

    IBM Plex Sans

    Sans18px

    Contrast Ratio

    1:1

    21 issues

    Reading Comfort

    ~37 CPL

    Narrow lines
    80px
    h1
    56px
    h2
    28px
    h3
    18px
    p

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

    ⚠️ Hard to read: Flesch score 37/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 21 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 4.4x larger than body text.

    ✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

    GGoogle FontsFluid Type (rem)Flesch 37

    Color Palette

    9 unique colors
    5.55:1 AA Light
    #ffffff
    Primary· 15.8%
    #6b6863
    Other· 6.2%
    #21180d
    Secondary· 25.2%
    #040302
    Background· 17.7%
    #38322a
    Text· 13.1%
    #554c41
    Text· 7%
    #342617
    Secondary· 6.5%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    25 Resources

    15
    Scripts
    10
    Styles
    2
    Async
    0
    Defer

    Top Script Sources

    local(9)googletagmanager.com(2)cdnjs.cloudflare.com(2)unpkg.com(1)cdn.jsdelivr.net(1)

    Website Identity

    volkerwessels.com

    24 years old
    Location detected: 🇳🇱 Netherlandsvia ip
    Metaregistrar BV📧 Microsoft 365nl

    Sponsored

    Last analyzed: 16 May 2026 at 20:34

    Historical Analysis & Change Tracking