knihydobrovsky.cz

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

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knihydobrovsky.cz

Mobile

Sponsored

Hosting Provider

Active24 CZ Dedik

IP Address

81.95.110.212

Site Location

🇨🇿 Praha 4, Czech Republicvia schema_nap

Server Location

🇨🇿 Prague, Czechia

ASN

AS25234

Organization

Active24 CZ Dedik

Server

Nginx

Nameservers

ns.forpsi.it.ns.forpsi.net.ns.forpsi.cz.

Performance

Core Web Vitals

Weight

First Contentful Paint

887 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.5 MB

141 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Active24 CZ Dedik

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

Other

Other

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

B77/100

Meta Tags14/15

Content8/12

Headings3/8

Technical20/25

E-E-A-T5/7

Images5/7

Links5/5

URL5/5

Social3/5

Freshness2/4

Mobile4/4

Indexability3/3

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Description truncated.

Title Length60 chars

Recommended: 50-60 chars (~358px / 580px)

Description Length181 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

28 URLs

28 sub-sitemaps

robots.txt

42 rules

Sitemap reference found

Local SEO

Local Search Readiness

34/100

Needs Work

10 10

Sponsored

AI & LLM Readiness

D40/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

7/25

Citation

12/25

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:3%

Words:4,388

Token eff.:Poor Structure

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary16w

Descriptive Headingsavg 4.2w

Canonical URL

Open Graph3/3

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.

77/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

9/20

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

15/15

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.

1 recommendation

•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.

21/100

572 mg

CO₂e / view

4.5 MB

Page Weight

15%

Cleaner Than

New Visitor

653 mg

Returning (cached)

327 mg

Annual (10K/mo)

68.6 kg

Emission Segments

Data Center

128 mg

Network

137 mg

Device

307 mg

Resource Breakdown

JavaScript

1.1 MB

Images

2.9 MB

CSS

468.8 KB

HTML

101.0 KB

Other

335 B

Green Hosting Not Verified

Active24 CZ Dedik

9 recommendations

•Carbon footprint recommendation preview...

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Security Score

61%Fair

Interactive

HTTPS

No WAF

59d

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

06.04.2026

Valid Until

05.07.2026

Subject Alternative Names (4)

eshop.knihydobrovsky.czknihydobrovsky.czm.knihydobrovsky.czwww.knihydobrovsky.cz

SHA-256 Fingerprint

DE:82:15:BC:2D:71:58:FF:40:72:A6:54:74:62:BB:F3:5C:A3:59:63...

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

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Thu, 07 May 2026 11:56:30 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

knihydobrovsky-cz.mail.protection.outlook.com

Domain Information

knihydobrovsky.cz

Domain Age

20y 2m

Created

27.02.2006

Expires

26.02.2029

Last Updated

18.12.2011

Registrar

REG-INTERNET-CZ

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

68/100

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, minimum-scale=1.0, maximum-scale=1.0, user-scalable=0

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG Partial

61/100

Readability

/30

20/30

15px · LH 1.60

Hierarchy

/20

7/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

18/25

1 font · 5 req

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans15px

Contrast Ratio

1:1

8 issues

Reading Comfort

~39 CPL

Narrow lines

24px

28px

15px

Minor Third

Scale

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 50/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

❌ 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 50

Color Palette

11 unique colors

14.99:1 AAA Light

#ffffff

Background· 25.6%

#292627

Text· 5.8%

#af6017

Accent· 17.1%

#7dac51

Primary· 14.2%

#f2ecd6

Accent· 7.5%

#170c09

Secondary· 7.2%

#7d9552

Secondary· 6.7%

#d6ceb4

Secondary· 6.6%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)googletagmanager.com(3)youtube.com(2)cdn-eu.pagesense.io(2)c.seznam.cz(1)

Website Identity

DOBROVSKÝ s.r.o.

Organization

poradime@knihydobrovsky.cz

542220320

20 years old

Květnového vítězství 332/31, Praha 4

14900, Praha 4, Praha

Location detected: 🇨🇿 Czech Republic, Praha 4via schema_nap

REG-INTERNET-CZ📧 Microsoft 365cs

Social Profiles

Facebook Instagram TikTok

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Last analyzed: 07 May 2026 at 11:56

Historical Analysis & Change Tracking