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klascement.net

https://klascement.net· First analyzed 14 May 2026· Updated 14 May 2026
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klascement.net
Desktop screenshot of klascement.net
Mobile screenshot of klascement.net
Mobile

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Hosting Provider

HOSTING-SERVICE

IP Address

217.19.231.100

Site Location

🇧🇪 Belgiumvia ip

Server Location

🇧🇪 Ghent, Belgium

ASN

AS34762

Server

Apache

Nameservers

ns4.combell.net.ns1.combell.eu.ns3.combell.net.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
809 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.6 MB
45 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
HOSTING-SERVICE

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

6 Technologies Detected

Libraries

2
jQuery
jQuery UI

CSS Frameworks

2
Bootstrap
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Apache

SEO Analysis

B79/100
25
4
1
Meta Tags12/15
Content12/12
Headings6/8
Technical17/25
E-E-A-T5/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
K
klascement.netklascement.net

KlasCement Leermiddelennetwerk

Leraren en organisaties delen hun lesmateriaal en -ideeën gratis met jou! Registreer op KlasCement en doorzoek tienduizenden leermiddelen voor alle vakken.

Title Length30 chars

Recommended: 50-60 chars (~187px / 580px)

Description Length155 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (14/18) — critical for accessibility and SEO

5 issues found

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Crawlability

Sitemap

Type: index

13 URLs

13 sub-sitemaps

robots.txt

26 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100
Poor
3 13 1

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

Sponsored

AI & LLM Readiness

D52/100
Bot Access
19/25
Machine Read.
13/25
Schema Data
4/25
Citation
16/25

AI Bot Access

13/14 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
navheader/footer
Text ratio:4%
Words:598
Token eff.:Optimal
Sections/1K:23.4
Depth:2/5

Structured Data

2 JSON-LD
WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary123w
Descriptive Headingsavg 3.9w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (5)
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
86/100
14
Passed
3
Critical
1
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
13/15
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
13/15
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.

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.
44/100
F
369 mg
CO₂e / view
3.6 MB
Page Weight
15%
Cleaner Than
New Visitor
422 mg
vs
Returning (cached)
211 mg
Annual (10K/mo)
44.3 kg
Emission Segments
Data Center
18 mg
Network
108 mg
Device
242 mg
Resource Breakdown
JavaScript
2.7 MB
Images
684.8 KB
CSS
135.1 KB
Fonts
18.8 KB
HTML
14.1 KB
Green Hosting Verified
Combell
GWF Verified
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

45%Poor
Critical / Transactional

HTTPS

No WAF

36d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

21.03.2026

Valid Until

19.06.2026

Subject Alternative Names (2)

klascement.netwww.klascement.net

SHA-256 Fingerprint

BF:94:EE:56:EA:19:BF:85:D2:9B:1D:4C:44:39:EF:A9:0E:66:BE:C5...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-length
14136
content-security-policy
script-src 'self' 'nonce-728665d61a0b3fe93f2864136f0a9494c2f...
content-type
text/html; charset=UTF-8
date
Thu, 14 May 2026 07:57:22 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx.backup.mailprotect.be
mx.mailprotect.be

Domain Information

klascement.net

Domain Age
26y 4m

Created

08.01.2000

Expires

08.01.2027

Last Updated

09.01.2026

Registrar

Combell NV

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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.
A
85/100
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, shrink-to-fit=no

Typography & Readability

flanders-sans

WCAG Partial
64/100
Readability
/30
18/30

18px · LH 1.00

Hierarchy
/20
15/20

1.84x ratio

WCAG
/25
13/25

1:1 min contrast

Performance
/25
18/25

1 font · 4 req

Heading Font

flanders-sans

Sans33px

Body Font

flanders-sans

Sans18px

Contrast Ratio

1:1

4 issues

Reading Comfort

~36 CPL

Narrow lines
33px
h1
28px
h2
16px
h3
18px
p

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

⚠️ Tight line spacing (1.00). Increase to 1.4–1.6 for better readability.

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

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFontsFlesch 0

Color Palette

8 unique colors
4.07:1 AA Large Light
#7f7f7f
Other· 48.2%
#1d211e
Text· 7%
#ffffff
Primary· 0%
#26434a
Primary· 6.9%
#597170
Secondary· 4.9%
#695742
Secondary· 4.2%
#538b73
Secondary· 0.3%

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

24 Resources

20
Scripts
4
Styles
0
Async
5
Defer

Top Script Sources

local(20)

Website Identity

KlasCement

KlasCement

GovernmentOrganization
www.klascement.net/
26 years old
Location detected: 🇧🇪 Belgiumvia ip
Combell NVnl

Sponsored

Last analyzed: 14 May 2026 at 07:57

Historical Analysis & Change Tracking