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arttv.ch

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

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Hosting Provider

Nine Internet Solutions AG

IP Address

5.148.168.199

Site Location

🇨🇭 Switzerlandvia tld

Server Location

🇨🇭 Zurich, Switzerland

ASN

AS29691

Organization

Nine Internet Solutions AG

Server

always unset

CDN

Varnish

Nameservers

ns5.nine.ch.ns6.nine.ch.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
538 ms10%
Speed Index
699 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.6 MB
75 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Nine Internet Solutions AG
CDN
Varnish

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Advertising

1
Google Ads

SEO Analysis

B70/100
20
6
1
Meta Tags11/15
Content12/12
Headings3/8
Technical20/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
A
arttv.charttv.ch

arttv.ch - kulturfernsehen im netz / kulturell - multimedial- genial

Das Kulturfernsehen in Netz mit den neusten Beiträgen aus Theater, Tanz, Kunst, Film, Literatur, Musik und mehr.

Title Length68 chars

Recommended: 50-60 chars (~403px / 580px)

Description Length112 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

13,767 URLs

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

5/100
Poor
1 14 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

D46/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
15/25

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:10%
Words:1,057
Token eff.:Optimal
Sections/1K:54.9
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary19w
Descriptive Headingsavg 6w
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
69/100
11
Passed
3
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
5/15
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
7/15
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.
21/100
E
335 mg
CO₂e / view
2.6 MB
Page Weight
30%
Cleaner Than
New Visitor
382 mg
vs
Returning (cached)
191 mg
Annual (10K/mo)
40.1 kg
Emission Segments
Data Center
75 mg
Network
80 mg
Device
180 mg
Resource Breakdown
JavaScript
350.4 KB
Images
111.5 KB
CSS
2.1 MB
HTML
12.1 KB
Other
63.4 KB
Green Hosting Not Verified
Nine Internet Solutions AG
5 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

56%Poor
Interactive

HTTPS

No WAF

156d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

03.11.2025

Valid Until

03.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.arttv.charttv.ch

SHA-256 Fingerprint

16:BF:CA:3E:AE:D7:5C:3E:57:3A:0E:6D:6C:C3:D5:8F:38:1F:0E:00...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
age
0
cache-control
🔴 No Cache(must-revalidate, proxy-revalidate, private, no-cache, max-ag...)
content-encoding
📦 Gzip(gzip)
content-length
12041
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx1.nine.ch
mx2.nine.ch

Domain Information

arttv.ch

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

noigrotesk

WCAG Partial
63/100
Readability
/30
22/30

18px · LH 1.40

Hierarchy
/20
8/20
WCAG
/25
13/25

1:1 min contrast

Performance
/25
20/25

1 font · 3 req

Heading Font

noigrotesk

Sans

Body Font

noigrotesk

Sans18px

Contrast Ratio

1:1

23 issues

Reading Comfort

~41 CPL

Narrow lines
28px
h2
21px
h3
18px
p

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

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

❌ Very complex text: Flesch score 17/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

Buy on MyFontsFlesch 17

Color Palette

10 unique colors
13.39:1 AAA Dark
#2f2f2f
Text· 24.8%
#ffffff
Primary· 19.7%
#2f2604
Accent· 7.6000000000000005%
#1c1811
Secondary· 5.1%

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

Ad Networks

Google Ad Manager

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Scripts & Styles

10 Resources

8
Scripts
2
Styles
3
Async
1
Defer

Top Script Sources

local(4)securepubads.g.doubleclick.net(2)cdn.matomo.cloud(1)app.mailjet.com(1)

Website Identity

arttv.ch

Location detected: 🇨🇭 Switzerlandvia tld
de

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Last analyzed: 31 May 2026 at 14:27

Historical Analysis & Change Tracking