caves.cz

https://caves.cz· First analyzed 20 May 2026· Updated 20 May 2026

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caves.cz

Mobile

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Hosting Provider

Ministerstvo zivotniho prostredi

IP Address

193.84.245.35

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS6855

Organization

Ministerstvo zivotniho prostredi

CDN

Varnish

Nameservers

ns1.one.cz.ns2.one.cz.ns3.one.cz.

Performance

Core Web Vitals

Weight

First Contentful Paint

708 ms10%

Speed Index

920 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.9 MB

61 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Ministerstvo zivotniho prostredi

CDN

Varnish

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

6 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Tag Managers

SEO Analysis

C67/100

Meta Tags10/15

Content11/12

Headings3/8

Technical19/25

E-E-A-T0/7

Images5/7

Links5/5

URL5/5

Social2/5

Freshness0/4

Mobile4/4

Indexability3/3

caves.czcaves.cz

Úvodní stránka | Správa jeskyní České republiky

Tato stránka je úvodní stránkou tohoto webu

Title Length47 chars

Recommended: 50-60 chars (~284px / 580px)

Description Length43 chars

Recommended: 120-160 chars

Issues (1)

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

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

395 URLs

robots.txt

60 rules

Local SEO

Local Search Readiness

16/100

Poor

5 11 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

D41/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

11/25

AI Bot Access

13/14 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

navheader/footer

Text ratio:4%

Words:566

Token eff.:Optimal

Sections/1K:45.9

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary13w

Descriptive Headingsavg 3.8w

Canonical URL

Open Graph0/3

Twitter Card2/3

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.

81/100

Passed

Critical

Warnings

Images & Alt Text

18/20

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

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

9/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 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.

28/100

373 mg

CO₂e / view

2.9 MB

Page Weight

30%

Cleaner Than

New Visitor

426 mg

Returning (cached)

213 mg

Annual (10K/mo)

44.7 kg

Emission Segments

Data Center

83 mg

Network

89 mg

Device

200 mg

Resource Breakdown

JavaScript

355.0 KB

Images

1.2 MB

CSS

550.1 KB

Fonts

821.5 KB

HTML

16.8 KB

Other

31.9 KB

Green Hosting Not Verified

Ministerstvo zivotniho prostredi

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

61%Fair

Interactive

HTTPS

No WAF

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Alpiro s.r.o.

Key Algorithm

RSA (2048 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

28.04.2025

Valid Until

29.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.caves.czcaves.cz

SHA-256 Fingerprint

BB:F9:A5:D3:2F:00:7B:E2:4B:E1:09:35:F9:8F:E8:91:D1:66:7D:CE...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

730

cache-control

🟡 1800s(max-age=1800, public)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

16885

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

caves-cz.mail.protection.outlook.com

Domain Information

caves.cz

Domain Age

23y 2m

Created

27.02.2003

Expires

26.02.2028

Last Updated

04.04.2012

Registrar

REG-ONE

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

77/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto

WCAG Partial

60/100

Readability

/30

17/30

12px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

17/25

1:1 min contrast

Performance

/25

18/25

System fonts

Heading Font

Roboto

Sans

Body Font

Roboto

Sans12px

Contrast Ratio

1:1

23 issues

Reading Comfort

~44 CPL

Narrow lines

26px

22px

15px

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

⚠️ 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.

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

Flesch 36

Color Palette

10 unique colors

Light

#110c07

Background· 30.200000000000003%

#32261a

Secondary· 20.9%

#004588

Primary· 0%

#fffdf0

Primary· 11.3%

#88866d

Secondary· 6.6%

#554235

Secondary· 6.4%

#79583e

Secondary· 6.2%

#cfb766

Accent· 5.7%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

HotjarMid-Market

User behavior and product analytics

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Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)static.hotjar.com(1)script.hotjar.com(1)local(1)

Website Identity

caves.cz

spravajeskynicr@caves.cz

271000040

23 years old

Location detected: 🇨🇿 Czech Republicvia tld

REG-ONE📧 Microsoft 365cs

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

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Last analyzed: 20 May 2026 at 14:43

Historical Analysis & Change Tracking