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vijfhart.nl

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

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Hosting Provider

iXL Hosting Network

IP Address

5.61.253.99

Site Location

🇳🇱 Netherlandsvia tld

Server Location

🇳🇱 Ede, The Netherlands

ASN

AS20857

Server

Apache

Nameservers

ns1.caveo.nl.ns3.caveo.nl.ns2.caveo.nl.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
479 ms10%
Speed Index
623 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.8 MB
82 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
Vijfhartv1.0.0Custom
by Sumedia
View Theme

Technology Stack

15 Technologies Detected

Plugins

5
Responsive Accordion And CollapseYoutube Embed Plus
Contact Form 7
WP Rocket
Yoast SEO

Libraries

2
jQuery
jQuery UI

CSS Frameworks

2
Tailwind CSS
Bootstrap

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Apachev2

Languages

1
PHPv7.4.33

Security

1
reCAPTCHA

SEO Analysis

A80/100
24
5
1
Meta Tags14/15
Content10/12
Headings5/8
Technical21/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
V
vijfhart.nlvijfhart.nl

Vijfhart, dat klopt voor jou! | Dé opleider voor IT-professionals

Klopt! Al meer dan 40 jaar specialist in het verzorgen van IT-opleidingen. Expert in omscholen en bijscholen van Nederland.

Title Length65 chars

Recommended: 50-60 chars (~381px / 580px)

Description Length123 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (74/96) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

12 URLs

12 sub-sitemaps

robots.txt

4 rules

Local SEO

Local Search Readiness

22/100
Needs Work
6 11

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AI & LLM Readiness

D55/100
Bot Access
20/25
Machine Read.
16/25
Schema Data
7/25
Citation
12/25

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
navheader/footer
Text ratio:3%
Words:859
Token eff.:Optimal
Sections/1K:2.3
Depth:2/5

Structured Data

4 JSON-LD
Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary190w
Descriptive Headingsavg 1.2w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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.
C
60/100
10
Passed
3
Critical
3
Warnings
Images & Alt Text
15/20
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
2/15
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
2/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
49/100
F
498 mg
CO₂e / view
4.8 MB
Page Weight
15%
Cleaner Than
New Visitor
569 mg
vs
Returning (cached)
284 mg
Annual (10K/mo)
59.7 kg
Emission Segments
Data Center
24 mg
Network
146 mg
Device
327 mg
Resource Breakdown
JavaScript
259.5 KB
Images
3.8 MB
CSS
304.1 KB
Fonts
467.9 KB
HTML
44.9 KB
Other
321 B
Green Hosting Verified
Transip
GWF Verified
5 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

48d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (4096 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

19.06.2025

Valid Until

18.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.vijfhart.nlvijfhart.nl

SHA-256 Fingerprint

3D:EF:5E:C3:3B:92:2F:DF:53:83:4A:1A:E7:22:F3:3A:88:D2:94:AE...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0)
content-encoding
📦 Gzip(gzip)
content-length
45628
content-type
text/html; charset=UTF-8
date
Sun, 31 May 2026 00:21:26 GMT
expires
Sun, 31 May 2026 00:21:26 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

vijfhart-nl.mail.protection.outlook.com

Domain Information

vijfhart.nl

Domain Age
30y 6m

Created

22.11.1995

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.
C
64/100
Mobile Friendly2 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, maximum-scale=1, user-scalable=no
3 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Open Sans

WCAG Partial
68/100
Readability
/30
20/30

16px · LH 1.80

Hierarchy
/20
17/20

2.81x ratio

WCAG
/25
15/25

1:1 min contrast

Performance
/25
16/25

1 font · 16 req

Heading Font

Open Sans

Sans45px

Body Font

Open Sans

Sans16px

Contrast Ratio

1:1

13 issues

Reading Comfort

~45 CPL

Optimal (45–75)
45px
h1
28px
h3
20px
h4
16px
p

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

✅ Optimal line length: ~45 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 9/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

Buy on MyFontsFluid Type (rem)Flesch 9

Color Palette

5 unique colors
2.16:1 Fail Light
#ffffff
Background· 59.1%
#b3afb5
Other· 4.4%
#d70428
Primary· 20%
#25313a
Secondary· 16.3%
#ad0b2a
Accent· 0.2%

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

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Scripts & Styles

11 Resources

1
Scripts
10
Styles
1
Async
0
Defer

Top Script Sources

vijfhart.nl(1)

Website Identity

Vijfhart IT-Opleidingen

Vijfhart IT-Opleidingen

Organization

Klopt! Al meer dan 40 jaar specialist in het verzorgen van IT-opleidingen. Expert in omscholen en bijscholen van Nederland.

088-5427848
www.vijfhart.nl/
30 years old
Location detected: 🇳🇱 Netherlandsvia tld
Registrar.eu📧 Microsoft 365nl-NL

Social Profiles

LinkedInYouTube

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Last analyzed: 31 May 2026 at 00:21

Historical Analysis & Change Tracking