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education21.ch

https://education21.ch· First analyzed 31 May 2026· Updated 31 May 2026
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education21.ch
Desktop screenshot of education21.ch
Mobile screenshot of education21.ch
Mobile

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Hosting Provider

Infomaniak Network SA

IP Address

195.15.210.227

Site Location

🇨🇭 Switzerlandvia tld

Server Location

🇨🇭 Geneva, Switzerland

ASN

AS29222

Organization

Infomaniak Network SA

Server

Apache

Nameservers

ns31.infomaniak.com.ns32.infomaniak.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
455 ms10%
Speed Index
592 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.8 MB
41 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

Customer Support

1
Zendesk

SEO Analysis

C62/100
17
7
2
Meta Tags10/15
Content11/12
Headings6/8
Technical17/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
E
education21.cheducation21.ch

Hunderte Bildungsinhalte. Eine Plattform. | education 21

No description available for this page.

Title Length56 chars

Recommended: 50-60 chars (~325px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (17/20) — critical for accessibility and SEO

9 issues found

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Crawlability

Sitemap
robots.txt

103 rules

Local SEO

Local Search Readiness

19/100
Poor
6 10 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

F33/100
Bot Access
11/25
Machine Read.
11/25
Schema Data
0/25
Citation
11/25

AI Bot Access

6/14 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:506
Token eff.:Optimal
Sections/1K:39.5
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary57w
Descriptive Headingsavg 3.2w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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
66/100
10
Passed
6
Critical
0
Warnings
Images & Alt Text
7/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
5/15
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.
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.
62/100
C
183 mg
CO₂e / view
1.8 MB
Page Weight
60%
Cleaner Than
New Visitor
209 mg
vs
Returning (cached)
104 mg
Annual (10K/mo)
21.9 kg
Emission Segments
Data Center
9 mg
Network
54 mg
Device
120 mg
Resource Breakdown
JavaScript
153.8 KB
Images
1.5 MB
CSS
152.4 KB
HTML
10.3 KB
Green Hosting Verified
Infomaniak
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

56%Poor
Interactive

HTTPS

No WAF

19d

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

22.03.2026

Valid Until

20.06.2026

Subject Alternative Names (5)

catalogue.education21.cheducation21.chglobaleducation.chwww.education21.chwww.globaleducation.ch

SHA-256 Fingerprint

3A:7C:BE:1D:56:DB:2B:20:1D:88:02:86:11:F0:10:41:84:EA:9E:F6...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 1 Hours(max-age=3600, public)
content-encoding
📦 Gzip(gzip)
content-language
de
content-length
10210
content-type
text/html; charset=UTF-8
date
Sun, 31 May 2026 11:06:50 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

education21-ch.mail.protection.outlook.com

Domain Information

education21.ch

DNSSEC
Not Enabled

Privacy & Compliance

Klaro

Cookie Consent Banner
Klaro
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Klaro
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
70/100
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=1.0

Typography & Readability

T-Star

WCAG Partial
68/100
Readability
/30
22/30

16px · LH 1.40

Hierarchy
/20
16/20

2.25x ratio · ✓ H1→H6

WCAG
/25
17/25

3.13:1 min contrast

Performance
/25
13/25

1 font · 3 req

Heading Font

T-Star

Sans36px

Body Font

T-Star

Sans16px

Contrast Ratio

3.13:1

14 issues

Reading Comfort

~38 CPL

Narrow lines
36px
h1
24px
h2
16px
p

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

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 13/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 3.1:1).

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

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

Buy on MyFontsFlesch 13

Color Palette

8 unique colors
Light
#ffffff
Background· 62%
#ad8061
Primary· 6.9%
#d9cebd
Secondary· 6.8%
#72353d
Secondary· 6.6%
#2d2723
Text· 6.5%
#aeb678
Secondary· 5.5%
#736355
Secondary· 5.2%
#f4d6a9
Accent· 0.6%

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

16 Resources

12
Scripts
4
Styles
2
Async
1
Defer

Top Script Sources

local(6)googletagmanager.com(2)cdn.jsdelivr.net(2)dev.education21.ch(2)

Website Identity

education21.ch

[email protected]
0041313210021
Location detected: 🇨🇭 Switzerlandvia tld
📧 Microsoft 365de

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Last analyzed: 31 May 2026 at 12:03

Historical Analysis & Change Tracking