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jaspervdj.be

https://jaspervdj.be· First analyzed 13 May 2026· Updated 13 May 2026
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jaspervdj.be
Desktop screenshot of jaspervdj.be
Mobile screenshot of jaspervdj.be
Mobile

Sponsored

Hosting Provider

Hetzner
hetzner.com

IP Address

188.245.234.149

Site Location

🇧🇪 Belgiumvia tld

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner

Server

Nginx

Nameservers

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

Performance

100

Core Web Vitals

Weight

First Contentful Paint
568 ms10%
Speed Index
738 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
56 KB
4 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Hetzner

Technology Stack

1 Technologies Detected

Web Servers

1
Nginx

SEO Analysis

D53/100
14
10
0
Meta Tags5/15
Content10/12
Headings6/8
Technical10/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social1/5
Freshness0/4
Mobile4/4
Indexability3/3
J
jaspervdj.bejaspervdj.be

jaspervdj - Home

Personal home page and blog of Jasper Van der Jeugt.

Title Length16 chars

Recommended: 50-60 chars (~102px / 580px)

Description Length52 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 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

    D40/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    0/25
    Citation
    7/25

    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:37%
    Words:381
    Token eff.:Optimal
    Sections/1K:10.5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary49w
    Descriptive Headingsavg 1w
    Canonical URL
    Open Graph1/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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
    72/100
    9
    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
    12/20
    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
    1/15
    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.
    69/100
    A+
    6 mg
    CO₂e / view
    55.6 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    6 mg
    vs
    Returning (cached)
    3 mg
    Annual (10K/mo)
    672 g
    Emission Segments
    Data Center
    <0.001 g
    Network
    2 mg
    Device
    4 mg
    Resource Breakdown
    Images
    45.1 KB
    CSS
    3.9 KB
    HTML
    6.5 KB
    Green Hosting Verified
    Hetzner Online GmbH
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    No WAF

    84d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    08.05.2026

    Valid Until

    06.08.2026

    Subject Alternative Names (1)

    jaspervdj.be

    SHA-256 Fingerprint

    77:78:C2:E4:4E:57:0F:86:9B:EB:F4:45:DB:12:45:72:EA:23:6A:12...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    content-length
    6381
    content-type
    text/html
    date
    Wed, 13 May 2026 17:08:55 GMT
    etag
    "6952a244-18ed"
    last-modified
    Mon, 29 Dec 2025 15:46:12 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    20

    SPF
    DKIM
    DMARC

    MX Records (5)

    ALT1.ASPMX.L.GOOGLE.COM
    ASPMX.L.GOOGLE.COM
    ASPMX3.GOOGLEMAIL.COM
    ALT2.ASPMX.L.GOOGLE.COM

    +1 more

    Domain Information

    jaspervdj.be

    DNSSEC
    Not Enabled

    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.
    D
    53/100
    Mobile Friendly
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    sans-serif

    WCAG AAA
    72/100
    Readability
    /30
    24/30

    16px · LH 1.50

    Hierarchy
    /20
    11/20

    1.62x ratio

    WCAG
    /25
    23/25

    12.63:1 min contrast

    Performance
    /25
    14/25

    0 fonts

    Heading Font

    sans-serif

    Sans26px

    Body Font

    sans-serif

    Sans16px

    Contrast Ratio

    12.63:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~40 CPL

    Narrow lines
    26px
    h1
    22px
    h2
    16px
    p

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 12.6:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Lean font stack: 0 font families keeps load times fast.

    ⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

    Flesch 53

    Color Palette

    5 unique colors
    4.06:1 AA Large Light
    #ffffff
    Background· 74.4%
    #7e7e7e
    Other· 2.6%

    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

    Scripts & Styles

    1 Resources

    0
    Scripts
    1
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    Website Identity

    jaspervdj.be

    Location detected: 🇧🇪 Belgiumvia tld
    📧 Google Workspaceen

    Sponsored

    Last analyzed: 13 May 2026 at 17:09

    Historical Analysis & Change Tracking