volny.cz

https://volny.cz· First analyzed 25 Apr 2026· Updated 25 Apr 2026

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volny.cz

Mobile

Sponsored

Hosting Provider

Economia Infrastructure

IP Address

46.255.231.129

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS43614

Organization

Economia Infrastructure

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns2.eco-dns.net.ns1.centrum.cz.ns3.eint.cz.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.0 s10%

Speed Index

2.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

787 KB

250 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Styling

Tailwind CSS

CMS

WordPress

Infrastructure

Hosting

Economia Infrastructure

CDN

Cloudflare

Technology Stack

9 Technologies Detected

Analytics

Meta Frameworks

CSS Frameworks

Tag Managers

Advertising

CDN

SEO Analysis

D59/100

Meta Tags11/15

Content3/12

Headings3/8

Technical21/25

E-E-A-T0/7

Images7/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

volny.czvolny.cz

Volny.cz: Fandíme dobrému obsahu

Volný.cz je český internetový portál nabízející e-mail, aktuální zpravodajství, počasí a další zajímavé služby.

Title Length32 chars

Recommended: 50-60 chars (~197px / 580px)

Description Length111 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (4 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

977 URLs

robots.txt

2 rules

Sitemap reference found

Allows all crawlers

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

F28/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

3/25

Citation

4/25

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

data-nosnippet

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:1%

Words:3,698

Token eff.:Poor Structure

Structured Data

1 JSON-LD

WebSiteSearchAction

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

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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.

68/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

6/20

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.

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.

46/100

97 mg

CO₂e / view

786.6 KB

Page Weight

80%

Cleaner Than

New Visitor

111 mg

Returning (cached)

56 mg

Annual (10K/mo)

11.7 kg

Emission Segments

Data Center

22 mg

Network

23 mg

Device

52 mg

Resource Breakdown

JavaScript

63.8 KB

Images

343 B

HTML

516.3 KB

Other

206.2 KB

Green Hosting Not Verified

Economia Infrastructure

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

26%Critical

Interactive

HTTPS

WAF

82d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

17.04.2026

Valid Until

16.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

centrum.cz*.centrum.cz

SHA-256 Fingerprint

0B:64:68:4B:9A:1C:A3:D5:21:46:E7:FB:BC:CB:B8:CB:D6:D6:91:B9...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

2077

cache-control

🟡 180s(public, max-age=180)

cf-cache-status

HIT

cf-ray

9f1f9413aa56901d-BOS

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

volny-cz-20mx1.eco-mx.cz

volny-cz-20mx2.eco-mx.cz

volny-cz-10mx2.eco-mx.cz

volny-cz-10mx1.eco-mx.cz

Domain Information

volny.cz

Domain Age

26y 8m

Created

06.08.1999

Expires

26.10.2026

Last Updated

08.11.2017

Registrar

REG-WEDOS

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

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.

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

Inter + Arial

WCAG Partial

58/100

Readability

/30

14/30

12px · LH 1.30

Hierarchy

/20

6/20

WCAG

/25

18/25

1.58:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Inter

Sans

Body Font

Arial

Sans12px

Contrast Ratio

1.58:1

2 issues

Reading Comfort

~44 CPL

Narrow lines

18px

16px

12px

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

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 47/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.6:1).

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

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

Buy on MyFontsFluid TypeFlesch 47

Color Palette

11 unique colors

Light

#ffffff

Background· 50.400000000000006%

#02641a

Primary· 9.5%

#cfb9ab

Secondary· 6.5%

#2b3419

Secondary· 6.2%

#90aa72

Secondary· 4.9%

#073827

Accent· 4.6%

#448845

Secondary· 3.7%

#a66845

Secondary· 3.5%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

hpx-cdn.xsd.cz(12)spir.hit.gemius.pl(2)googletagmanager.com(2)cdn-f.caroda.io(1)cse.google.com(1)

Website Identity

volny.cz

26 years old

Location detected: 🇨🇿 Czech Republicvia tld

REG-WEDOScs

Sponsored

Last analyzed: 25 Apr 2026 at 18:59

Historical Analysis & Change Tracking