openboard.ch

https://openboard.ch· First analyzed 25 May 2026· Updated 25 May 2026

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openboard.ch

Mobile

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Hosting Provider

Infomaniak Network SA

IP Address

195.15.226.187

Site Location

🇨🇭 Switzerlandvia tld

Server Location

🇨🇭 Geneva, Switzerland

ASN

AS29222

Organization

Infomaniak Network SA

Server

Apache

Nameservers

ns41.infomaniak.com.ns42.infomaniak.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

528 ms10%

Speed Index

686 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

466 KB

8 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Infomaniak Network SA

Technology Stack

3 Technologies Detected

CSS Frameworks

Tailwind CSS

Icon Libraries

Font Awesome

Web Servers

Apachev2.4.38

SEO Analysis

D54/100

Meta Tags7/15

Content9/12

Headings8/8

Technical11/21

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

openboard.chopenboard.ch

OpenBoard, tableau blanc interactif open source pour les écoles et ...

OpenBoard is an open source cross-platform interactive whiteboard application. OpenBoard is intended for use primarily in schools and universities, and can b...

Title truncated. Description truncated.

Title Length79 chars

Recommended: 50-60 chars (~470px / 580px)

Description Length265 chars

Recommended: 120-160 chars

Issues (1)

• Title is too long (79 chars, ~470px). Will be truncated in search results.

9 issues found

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Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F37/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

Citation

5/25

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:29%

Words:453

Token eff.:Optimal

Sections/1K:24.3

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary14w

Descriptive Headingsavg 2.5w

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.

60/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

3/15

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.

71/100

47 mg

CO₂e / view

465.7 KB

Page Weight

90%

Cleaner Than

New Visitor

54 mg

Returning (cached)

27 mg

Annual (10K/mo)

5.6 kg

Emission Segments

Data Center

2 mg

Network

14 mg

Device

31 mg

Resource Breakdown

JavaScript

7.7 KB

Images

264.6 KB

CSS

190.2 KB

HTML

3.2 KB

Green Hosting Verified

Infomaniak

GWF Verified

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

68d

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

03.05.2026

Valid Until

01.08.2026

Subject Alternative Names (5)

openboard.chopenboard.openboard.chopenboard.orgwww.openboard.chwww.openboard.org

SHA-256 Fingerprint

F4:AE:C2:06:1D:70:61:BE:61:70:96:82:46:26:BB:24:86:84:5B:0C...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

Upgrade, Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

2933

content-type

text/html

date

Mon, 25 May 2026 01:53:59 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mta-gw.infomaniak.ch

Domain Information

openboard.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.

62/100

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...

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Typography & Readability

Helvetica Neue

WCAG Partial

71/100

Readability

/30

21/30

14px · LH 1.43

Hierarchy

/20

17/20

2.57x ratio · ✓ H1→H6

WCAG

/25

14/25

2.8:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Helvetica Neue

Sans36px

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

2.8:1

4 issues

Reading Comfort

~44 CPL

Narrow lines

36px

30px

24px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 2.8:1).

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

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

Flesch 39

Color Palette

6 unique colors

Light

#155a7c

Primary· 28%

#e9f2f1

Background· 27.599999999999998%

#146991

Accent· 19.200000000000003%

#1b7ca8

Accent· 15.8%

#318cb8

Accent· 4.7%

#bbc7ca

Secondary· 4.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

scripts(1)

Website Identity

openboard.ch

Location detected: 🇨🇭 Switzerlandvia tld

Social Profiles

GitHub

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Last analyzed: 25 May 2026 at 01:54

Historical Analysis & Change Tracking