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canalalpha.ch

https://canalalpha.ch· First analyzed 20 May 2026· Updated 20 May 2026
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canalalpha.ch
Desktop screenshot of canalalpha.ch
Mobile screenshot of canalalpha.ch
Mobile

Sponsored

Hosting Provider

Infomaniak Cloud

IP Address

185.172.103.5

Site Location

🇨🇭 Cortaillod, Switzerlandvia schema_nap

Server Location

🇨🇭 Geneva, Switzerland

ASN

AS29222

Organization

Infomaniak Cloud

Server

Nginx

Nameservers

nsany1.infomaniak.com.nsany2.infomaniak.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
837 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.4 MB
66 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Infrastructure
Hosting
Infomaniak Cloud
CDN
Vercel Image

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Nginx

SEO Analysis

B78/100
24
4
1
Meta Tags14/15
Content7/12
Headings3/8
Technical24/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
C
canalalpha.chcanalalpha.ch

Canal Alpha - La télévision de l'Arc jurassien

Retrouvez l'actualité régionale et des magazines en vidéo à propos des cantons de Neuchâtel et du Jura ainsi que le Jura bernois et le Nord vaudois.

Title Length46 chars

Recommended: 50-60 chars (~267px / 580px)

Description Length148 chars

Recommended: 120-160 chars

Issues (1)

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

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

139 URLs

139 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

35/100
Needs Work
10 11

Sponsored

AI & LLM Readiness

D53/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
7/25
Citation
16/25

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:1%
Words:486
Token eff.:Optimal
Sections/1K:12.3
Depth:1/5

Structured Data

2 JSON-LD
Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary51w
Descriptive Headingsavg 7.6w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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.
B
73/100
9
Passed
4
Critical
0
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
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
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.
2 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.
67/100
B
144 mg
CO₂e / view
1.4 MB
Page Weight
60%
Cleaner Than
New Visitor
165 mg
vs
Returning (cached)
82 mg
Annual (10K/mo)
17.3 kg
Emission Segments
Data Center
7 mg
Network
42 mg
Device
95 mg
Resource Breakdown
JavaScript
664.6 KB
Images
303.6 KB
CSS
148.5 KB
HTML
26.9 KB
Other
284.2 KB
Green Hosting Verified
Infomaniak
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

31d

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

23.03.2026

Valid Until

21.06.2026

Subject Alternative Names (2)

canalalpha.chwww.canalalpha.ch

SHA-256 Fingerprint

2F:3E:A3:8C:32:E5:C1:75:A4:80:CC:BB:CC:BC:C4:BB:05:FC:50:6D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
⚪ Custom(s-maxage=60, stale-while-revalidate=31535940)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Wed, 20 May 2026 13:09:12 GMT
etag
"16y8smsofjn38nf"
server
nginx
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mta-gw.infomaniak.ch

Domain Information

canalalpha.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.
B
72/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Roboto

WCAG Partial
62/100
Readability
/30
23/30

18px · LH --

Hierarchy
/20
8/20
WCAG
/25
14/25

1.32:1 min contrast

Performance
/25
17/25

System fonts

Heading Font

Roboto

Sans

Body Font

Roboto

Sans18px

Contrast Ratio

1.32:1

12 issues

Reading Comfort

Single Font Family

left aligned
28px
h2
18px
p

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

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.3:1).

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

⚠️ High font requests: 14 font files loaded. Consider variable fonts or subsetting.

Color Palette

6 unique colors
Dark
#141414
Primary· 38.50000000000001%
#7f614f
Secondary· 14.2%
#bcb2a1
Secondary· 11.3%
#603e34
Secondary· 7.2%
#322525
Secondary· 4.4%

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

Sponsored

Scripts & Styles

8 Resources

6
Scripts
2
Styles
5
Async
1
Defer

Top Script Sources

local(5)stats.canalalpha.ch(1)

Website Identity

Canal Alpha

Canal Alpha

Organization

La télévision de l'Arc jurassien

Rochettes 3, Cortaillod

CH-2016, Cortaillod

CH

Location detected: 🇨🇭 Switzerland, Cortaillodvia schema_nap
frEst. 2000

Sponsored

Last analyzed: 20 May 2026 at 13:09

Historical Analysis & Change Tracking