vanheusden.com

https://vanheusden.com· First analyzed 10 May 2026· Updated 10 May 2026

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vanheusden.com

Mobile

Sponsored

Hosting Provider

Netwerkvereniging Coloclue

IP Address

94.142.246.159

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Amsterdam, Netherlands

ASN

AS8283

Server

Nginx

Nameservers

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

Performance

100

Core Web Vitals

Weight

First Contentful Paint

387 ms10%

Speed Index

503 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

143 KB

40 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Netwerkvereniging Coloclue

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

1 Technologies Detected

Web Servers

Nginxv1.26.3

SEO Analysis

D54/100

Meta Tags4/15

Content8/12

Headings8/8

Technical13/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

vanheusden.comvanheusden.com

vanheusden.com

No description available for this page.

Title Length14 chars

Recommended: 50-60 chars (~87px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description — important for click-through rates in SERPs

9 issues found

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Crawlability

Sitemap

robots.txt

16 rules

Local SEO

Local Search Readiness

11/100

Poor

3 12 2

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

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AI & LLM Readiness

F34/100

Bot Access

18/25

Machine Read.

13/25

Schema Data

0/25

Citation

3/25

AI Bot Access

11/14 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:25%

Words:323

Token eff.:Optimal

Sections/1K:18.6

Structured Data

No Schema

Citation Readiness

Opening Summary13w

Descriptive Headingsavg 1.5w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

71/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

16/20

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.

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.

54/100

A+

18 mg

CO₂e / view

143.5 KB

Page Weight

95%

Cleaner Than

New Visitor

20 mg

Returning (cached)

10 mg

Annual (10K/mo)

2.1 kg

Emission Segments

Data Center

4 mg

Network

4 mg

Device

10 mg

Resource Breakdown

Images

128.3 KB

CSS

12.3 KB

HTML

2.8 KB

Green Hosting Not Verified

Netwerkvereniging Coloclue

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

81d

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

01.05.2026

Valid Until

30.07.2026

Subject Alternative Names (2)

vanheusden.comwww.vanheusden.com

SHA-256 Fingerprint

CD:E2:4F:18:4D:10:7E:C8:8A:8B:32:04:6C:E9:FE:65:E2:23:46:FD...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'none';

content-type

text/html; charset=UTF-8

date

Sun, 10 May 2026 01:52:01 GMT

server

nginx/1.26.3

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

vps001.vanheusden.com

vps003.vanheusden.com

Domain Information

vanheusden.com

Domain Age

26y 4m

Created

16.01.2000

Expires

16.01.2027

Last Updated

17.01.2026

Registrar

Key-Systems GmbH

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.

57/100

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, initial-scale=1

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

-apple-system

WCAG Fail

82/100

Readability

/30

25/30

18px · LH 1.50

Hierarchy

/20

20/20

2.61x ratio · ✓ H1→H6

WCAG

/25

15/25

1.37:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

-apple-system

Sans48px

Body Font

-apple-system

Sans18px

Contrast Ratio

1.37:1

49 issues

Reading Comfort

Single Font Family

left aligned

48px

42px

18px

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

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

❌ Low contrast: 49 elements fail WCAG AA (min 1.4:1). Increase text/background contrast.

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

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

Flesch 0

Color Palette

5 unique colors

6.91:1 AA Dark

#212121

Other· 93.7%

#aaaaa6

Other· 1.3%

#544b3f

Primary· 1.8%

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Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

vanheusden.com

26 years old

For contact info, seethispage.

Location detected: 🇳🇱 Netherlandsvia ip

Key-Systems GmbHen

Social Profiles

GitHub

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Last analyzed: 10 May 2026 at 01:52

Historical Analysis & Change Tracking