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klasse.be

https://klasse.be· First analyzed 17 May 2026· Updated 17 May 2026
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klasse.be
Desktop screenshot of klasse.be
Mobile screenshot of klasse.be
Mobile

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Hosting Provider

Sentia Network

IP Address

83.217.72.242

Site Location

🇧🇪 Belgiumvia tld

Server Location

🇧🇪 Ghent, Belgium

ASN

AS34762

Server

Nginx

Nameservers

ns1.easyhost.be.ns2.easyhost.be.ns3.easyhost.be.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
749 ms10%
Speed Index
974 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
493 KB
38 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
astridCustom

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

12 Technologies Detected

Plugins

7
Gravity Forms
Klasse LerarenkaartKlasse VoordelenAdrotate ProKlasse Profielen
Yoast SEO
Gravity Forms

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

Languages

1
PHPv8.5.6

SEO Analysis

A82/100
25
4
1
Meta Tags9/15
Content11/12
Headings8/8
Technical24/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
K
klasse.beklasse.be

Home – Klasse

Klasse is een onderwijsmagazine voor leraren, directeurs en andere onderwijsprofessionals. Het gedrukte magazine verschijnt driemaandelijks.

Title Length13 chars

Recommended: 50-60 chars (~81px / 580px)

Description Length140 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (28/30) — critical for accessibility and SEO

5 issues found

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Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

6 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

24/100
Needs Work
6 11

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AI & LLM Readiness

D57/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
8/25
Citation
17/25

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
navheader/footer
Text ratio:10%
Words:767
Token eff.:Optimal
Sections/1K:62.6
Depth:2/5

Structured Data

5 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary18w
Descriptive Headingsavg 5.1w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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.
A
81/100
12
Passed
2
Critical
0
Warnings
Images & Alt Text
18/20
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
3/15
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.
77/100
A
50 mg
CO₂e / view
493.1 KB
Page Weight
90%
Cleaner Than
New Visitor
57 mg
vs
Returning (cached)
29 mg
Annual (10K/mo)
6.0 kg
Emission Segments
Data Center
2 mg
Network
15 mg
Device
33 mg
Resource Breakdown
JavaScript
290.0 KB
Images
2.8 KB
Fonts
189.0 KB
HTML
11.3 KB
Green Hosting Verified
Combell
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

36%Critical
Interactive

HTTPS

No WAF

70d

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/1.1

Valid From

27.04.2026

Valid Until

26.07.2026

Subject Alternative Names (10)

*.klasse.beklasse.beklassetv.belerarenkaart.bemagdag.betvklasse.bewww.klassetv.bewww.lerarenkaart.be+2 more

SHA-256 Fingerprint

36:C8:94:8A:F1:09:FC:5A:C6:03:E6:94:38:AA:4B:1E:F9:9D:16:DB...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-length
11229
content-type
text/html; charset=UTF-8
date
Sun, 17 May 2026 03:36:13 GMT
link
<https://www.klasse.be/wp-json/wp/v2/pages/14>; rel="alterna...
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

klasse-be.mail.protection.outlook.com

Domain Information

klasse.be

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.
B
73/100
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

Typography & Readability

Flanders Art Serif + ARS Maquette Pro

WCAG AAA
69/100
Readability
/30
23/30

18px · LH 1.56

Hierarchy
/20
17/20

3.22x ratio · ✓ H1→H6

WCAG
/25
20/25

12.65:1 min contrast

Performance
/25
9/25

3 fonts · 6 req

Heading Font

Flanders Art Serif

Serif58px

Body Font

ARS Maquette Pro

Sans18px

Contrast Ratio

12.65:1

WCAG AAA (≥7:1)

Reading Comfort

~37 CPL

Narrow lines
58px
h1
38px
h2
36px
h3
18px
p

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

✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 21/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 12.7:1).

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

✅ Strong hierarchy: Headlines are 3.2x larger than body text.

Buy on MyFontsFlesch 21

Color Palette

7 unique colors
Light
#ffffff
Background· 30.2%
#fff0ad
Primary· 47.800000000000004%
#edde97
Accent· 8.6%
#cfc990
Secondary· 7.5%
#b0aa88
Secondary· 3.6%
#fcf5cf
Accent· 1%

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

15 Resources

11
Scripts
4
Styles
0
Async
0
Defer

Top Script Sources

cdn.klasse.be(10)maps.googleapis.com(1)

Website Identity

Klasse

Organization

Klasse is een onderwijsmagazine voor leraren, directeurs en andere onderwijsprofessionals. Het gedrukte magazine verschijnt driemaandelijks.

www.klasse.be/

H. ConsciencegebouwKoning Albert II-laan 15 bus 1341210 Brussel

Location detected: 🇧🇪 Belgiumvia tld
📧 Microsoft 365nl-NL

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Last analyzed: 17 May 2026 at 03:36

Historical Analysis & Change Tracking