valka.cz

https://valka.cz· First analyzed 07 May 2026· Updated 07 May 2026

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valka.cz

Mobile

Sponsored

Hosting Provider

Master Internet s.r.o.

IP Address

89.185.242.19

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS24971

Organization

Master Internet s.r.o.

Server

Apache

Nameservers

ns2.ignum.cz.ns1.ignum.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

698 ms10%

Speed Index

907 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1004 KB

97 requests

Image Optimization

Lazy LoadCloudinary

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

Infrastructure

Hosting

Master Internet s.r.o.

CDN

Cloudinary

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Advertising

Google Ads Google AdSense

Other

Socket.io

CSS Frameworks

Tailwind CSS

Web Servers

Apache

SEO Analysis

C65/100

Meta Tags5/15

Content11/12

Headings3/8

Technical19/25

E-E-A-T0/7

Images5/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

valka.czvalka.cz

Valka.cz | Homepage

Server o vojenství a historii

Title Length19 chars

Recommended: 50-60 chars (~114px / 580px)

Description Length29 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

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Crawlability

Sitemap

Type: index

9 URLs

9 sub-sitemaps

robots.txt

334 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100

Poor

3 13 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

D40/100

Bot Access

12/25

Machine Read.

15/25

Schema Data

0/25

Citation

13/25

AI Bot Access

5/14 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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:3%

Words:711

Token eff.:Optimal

Sections/1K:18.3

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary994w

Descriptive Headingsavg 3.5w

Canonical URL

Open Graph3/3

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.

78/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

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

4/15

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.

44/100

124 mg

CO₂e / view

1003.9 KB

Page Weight

70%

Cleaner Than

New Visitor

142 mg

Returning (cached)

71 mg

Annual (10K/mo)

14.9 kg

Emission Segments

Data Center

28 mg

Network

30 mg

Device

67 mg

Resource Breakdown

JavaScript

464.6 KB

Images

345.3 KB

CSS

147.8 KB

HTML

20.1 KB

Other

26.1 KB

Green Hosting Not Verified

Master Internet s.r.o.

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

74d

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

21.04.2026

Valid Until

20.07.2026

Subject Alternative Names (2)

valka.czwww.valka.cz

SHA-256 Fingerprint

44:5C:BC:36:DD:3D:A0:2E:51:41:A9:5B:FE:2A:EE:85:D3:DE:D1:41...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

⚡ Brotli(br)

content-length

20281

content-type

text/html; charset=UTF-8

date

Thu, 07 May 2026 01:50:32 GMT

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

www.valka.cz

Domain Information

valka.cz

Domain Age

26y 11m

Created

10.06.1999

Expires

12.10.2026

Last Updated

17.04.2026

Registrar

REG-WEBGLOBE

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.

83/100

Mobile Friendly2 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, maximum-scale=3

Typography & Readability

Apple Color Emoji

WCAG AA

68/100

Readability

/30

26/30

18px · LH 1.56

Hierarchy

/20

8/20

WCAG

/25

19/25

4.83:1 min contrast

Performance

/25

15/25

1 font · 1 req

Heading Font

Apple Color Emoji

Sans

Body Font

Apple Color Emoji

Sans18px

Contrast Ratio

4.83:1

WCAG AA (≥4.5:1)

Reading Comfort

~39 CPL

Narrow lines

36px

20px

16px

18px

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

✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.8:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 39

Color Palette

9 unique colors

18.11:1 AAA Light

#ffffff

Background· 32.2%

#151618

Text· 6.7%

#c5a769

Primary· 0%

#30382e

Secondary· 6.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

fundingchoicesmessages.google.com(4)valka.cz(3)securepubads.g.doubleclick.net(2)local(2)googletagmanager.com(1)

Website Identity

valka.cz

26 years old

Location detected: 🇨🇿 Czech Republicvia tld

REG-WEBGLOBEcs

Social Profiles

Facebook X (Twitter)Instagram

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Last analyzed: 07 May 2026 at 01:50

Historical Analysis & Change Tracking