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zhdk.ch

https://zhdk.ch· First analyzed 27 Apr 2026· Updated 27 Apr 2026
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zhdk.ch
Desktop screenshot of zhdk.ch
Mobile screenshot of zhdk.ch
Mobile

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Hosting Provider

SWITCH.102

IP Address

195.176.247.145

Site Location

🇨🇭 Switzerlandvia tld

Server Location

🇨🇭 Geneva, Switzerland

ASN

AS559

Server

Apache

CDN

Varnish

Nameservers

ns2.zhdk.ch.ns1.zhdk.ch.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
398 ms10%
Speed Index
517 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.7 MB
51 requests
0–49
50–89
90–100

Architecture Stack

JAMstack
🔀 Hybrid
Frontend
Framework
Astro
CMS
TYPO3
Infrastructure
Hosting
SWITCH.102
CDN
Varnish

Technology Stack

8 Technologies Detected

Web Servers

2
ApacheNginx

Meta Frameworks

1
Astro

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Caching

1
Varnish

Languages

1
PHP

Runtime

1
Node.js

SEO Analysis

C68/100
20
5
2
Meta Tags12/15
Content3/12
Headings8/8
Technical19/25
E-E-A-T5/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
Z
zhdk.chzhdk.ch

Zürcher Hochschule der Künste | ZHdK.ch

Das Programm der ZHdK umfasst die Bereiche Art Education, Cultural Critique, Design, Film, Fine Arts, Musik, Tanz, Theater und Transdisziplinarität.

Title Length39 chars

Recommended: 50-60 chars (~235px / 580px)

Description Length148 chars

Recommended: 120-160 chars

Issues (2)

  • • Very thin content (27 words). Search engines need substantial content for ranking.
  • • Most images missing alt text (10/16) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

11/100
Poor
3 14

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

Sponsored

AI & LLM Readiness

F34/100
Bot Access
20/25
Machine Read.
4/25
Schema Data
3/25
Citation
7/25

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
nav
Text ratio:0%
Words:219
Token eff.:Too Short
Sections/1K:4.6
Depth:1/5

Structured Data

1 JSON-LD
Organization×1.1SearchAction

Citation Readiness

Opening Summary
Descriptive Headingsavg 1w
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
C
66/100
7
Passed
3
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
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.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
29/100
D
221 mg
CO₂e / view
1.7 MB
Page Weight
60%
Cleaner Than
New Visitor
253 mg
vs
Returning (cached)
127 mg
Annual (10K/mo)
26.6 kg
Emission Segments
Data Center
49 mg
Network
53 mg
Device
119 mg
Resource Breakdown
JavaScript
606.1 KB
Images
979.9 KB
CSS
80.5 KB
HTML
123.8 KB
Green Hosting Not Verified
SWITCH.102
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

61%Fair
Interactive

HTTPS

No WAF

43d

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

12.03.2026

Valid Until

10.06.2026

Subject Alternative Names (1)

www.zhdk.ch

SHA-256 Fingerprint

48:F9:8E:8C:27:8C:8A:55:74:DA:32:79:8F:39:80:F7:A1:C9:23:DD...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
age
951
cache-state
H
content-encoding
📦 Gzip(gzip)
content-length
126499
content-type
text/html
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

relay04.zhdk.ch
relay03.zhdk.ch
zhdk-ch.mail.protection.outlook.com

Domain Information

zhdk.ch

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.
D
56/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica

WCAG AA
80/100
Readability
/30
21/30

20px · LH 1.40

Hierarchy
/20
20/20

4.25x ratio · ✓ H1→H6

WCAG
/25
18/25

4.54:1 min contrast

Performance
/25
21/25

1 font

Heading Font

Helvetica

Sans85px

Body Font

Helvetica

Sans20px

Contrast Ratio

4.54:1

WCAG AA (≥4.5:1)

Reading Comfort

~40 CPL

Narrow lines
85px
h1
30px
h2
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 31/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.5:1).

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

✅ Strong hierarchy: Headlines are 4.2x larger than body text.

Buy on MyFontsFlesch 31

Color Palette

10 unique colors
20.27:1 AAA Light
#ffffff
Background· 90.9%
#060605
Secondary· 1.8%
#fbe4a8
Primary· 1.9%
#ddd8cd
Secondary· 0.8%
#f4eeda
Accent· 0.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

8 Resources

6
Scripts
2
Styles
2
Async
1
Defer

Top Script Sources

local(4)analytics.zhdk.ch(1)siteimproveanalytics.com(1)

Website Identity

Zürcher Hochschule der Künste

Zürcher Hochschule der Künste

Organization
www.zhdk.ch/
Location detected: 🇨🇭 Switzerlandvia tld
📧 Microsoft 365de

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Last analyzed: 27 Apr 2026 at 23:25

Historical Analysis & Change Tracking