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arnika.org

https://arnika.org· First analyzed 17 May 2026· Updated 17 May 2026
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arnika.org
Desktop screenshot of arnika.org
Mobile screenshot of arnika.org
Mobile

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Hosting Provider

SHcz VASHOSTING

IP Address

37.235.104.135

Site Location

🇨🇿 Czech Republicvia ip

Server Location

🇨🇿 Prague, Czechia

ASN

AS39392

Organization

SHcz VASHOSTING

Server

Apache

Nameservers

ns.vas-hosting.cz.ns.vas-hosting.eu.ns.vas-hosting.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
974 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.7 MB
91 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
Joomla!
Infrastructure
Hosting
SHcz VASHOSTING

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

11 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

CSS Frameworks

2
Bootstrapv5.0.0
Tailwind CSS

Libraries

1
jQuery

UI Components

1
Fancybox

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

Customer Support

1
Zendesk

Security

1
reCAPTCHA

SEO Analysis

D49/100
13
7
3
Meta Tags8/15
Content3/12
Headings3/8
Technical13/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile3/4
Indexability3/3
A
arnika.orgarnika.org

Chráníme naše životní prostředí.

Chráníme naše životní prostředí.

Title Length32 chars

Recommended: 50-60 chars (~196px / 580px)

Description Length32 chars

Recommended: 120-160 chars

Issues (3)

  • • Very thin content (4 words). Search engines need substantial content for ranking.
  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (12/21) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Local SEO

Local Search Readiness

12/100
Poor
4 12 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

F32/100
Bot Access
20/25
Machine Read.
7/25
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
Text ratio:2%
Words:1,030
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph2/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
Upgrade to view recommendations

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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
65/100
8
Passed
5
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
3/20
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
11/15
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.
15/100
F
474 mg
CO₂e / view
3.7 MB
Page Weight
15%
Cleaner Than
New Visitor
541 mg
vs
Returning (cached)
271 mg
Annual (10K/mo)
56.9 kg
Emission Segments
Data Center
106 mg
Network
114 mg
Device
254 mg
Resource Breakdown
JavaScript
237.2 KB
Images
3.2 MB
CSS
269.6 KB
HTML
13.7 KB
Other
8.5 KB
Green Hosting Not Verified
SHcz VASHOSTING
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

39d

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

28.03.2026

Valid Until

26.06.2026

Subject Alternative Names (12)

arnika.orgenglish.arnika.orghelpdesk.arnika.orghotspot.arnika.orgimport.arnika.orgis.arnika.orgmoodle.arnika.orgmoodledata.arnika.org+4 more

SHA-256 Fingerprint

CC:26:EC:2B:B9:A4:83:82:48:50:9E:37:1B:9C:C9:9A:76:4C:31:E2...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Sun, 17 May 2026 15:29:57 GMT
expires
Wed, 17 Aug 2005 00:00:00 GMT
last-modified
Sun, 17 May 2026 15:29:57 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

75

SPF
DKIM
DMARC

MX Records (1)

arnika-org.mail.protection.outlook.com

Domain Information

arnika.org

Domain Age
24y 7m

Created

17.10.2001

Expires

17.10.2026

Last Updated

28.09.2025

Registrar

Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Data Protection Officer mentioned

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.
A
83/100
Mobile Friendly187 breakpoints
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

Barlow Semi Condensed + Georgia

WCAG Partial
65/100
Readability
/30
27/30

18px · LH 1.45

Hierarchy
/20
8/20
WCAG
/25
12/25

1:1 min contrast

Performance
/25
18/25

2 fonts · 4 req

Heading Font

Barlow Semi Condensed

Sans

Body Font

Georgia

Serif18px

Contrast Ratio

1:1

15 issues

Reading Comfort

~33 CPL

Narrow lines
37px
h2
35px
h3
25px
h4
18px
p

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

✅ Optimal line spacing: 1.45 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 15 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 44

Color Palette

14 unique colors
2.98:1 Fail Light
#ffffff
Primary· 37.1%
#989686
Secondary· 5.4%
#2f3b26
Secondary· 8%
#b0b7c0
Secondary· 6.9%
#706840
Secondary· 6.6%
#0b0d09
Secondary· 5.9%
#788456
Secondary· 5.3%
#664b36
Secondary· 4.8%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Facebook PixelMid-Market

Ad platforms and retargeting pixels

2

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

22 Resources

20
Scripts
2
Styles
9
Async
5
Defer

Top Script Sources

arnika.org(6)local(4)google-analytics.com(3)googletagmanager.com(2)connect.facebook.net(2)

Website Identity

arnika.org

arnika@arnika.org
24 years old
Location detected: 🇨🇿 Czech Republicvia ip
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA📧 Microsoft 365

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Last analyzed: 17 May 2026 at 15:30

Historical Analysis & Change Tracking