datart.cz

https://datart.cz· First analyzed 06 May 2026· Updated 06 May 2026

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datart.cz

Mobile

Sponsored

Hosting Provider

Managed

IP Address

185.115.1.165

Site Location

🇨🇿 Czech Republicvia phone

Server Location

🇨🇿 Prague, Czechia

ASN

AS43541

Organization

Managed

Nameservers

hptronic2.ns.nic.cz.hptronic1.ns.nic.cz.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

525 ms10%

Speed Index

682 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

91 KB

1 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Managed

SEO Analysis

F22/100

Meta Tags0/15

Content3/12

Headings0/8

Technical6/21

E-E-A-T0/7

Images1/7

Links0/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

datart.czdatart.cz

No Title Found

No description available for this page.

Title Length0 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (5)

• Missing page title — critical for SEO rankings and SERP display
• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

14 issues found

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Local SEO

Local Search Readiness

7/100

Poor

2 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

F27/100

Bot Access

20/25

Machine Read.

6/25

Schema Data

0/25

Citation

1/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:1%

Words:81

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary13w

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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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.

40/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

0/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

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

9/15

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.

5 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.

66/100

A+

11 mg

CO₂e / view

91.5 KB

Page Weight

95%

Cleaner Than

New Visitor

13 mg

Returning (cached)

7 mg

Annual (10K/mo)

1.4 kg

Emission Segments

Data Center

3 mg

Network

3 mg

Device

6 mg

Resource Breakdown

JavaScript

57.4 KB

HTML

34.1 KB

Green Hosting Not Verified

Managed

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

41%Poor

Interactive

HTTPS

No WAF

261d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Alpiro s.r.o.

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

Valid From

09.01.2026

Valid Until

22.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.datart.czdatart.cz

SHA-256 Fingerprint

DA:85:4D:A1:AB:0B:82:16:F7:CF:23:1D:23:31:E5:74:9A:CE:24:5C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, must-revalidate, no-cache, max-age=0)

content-encoding

📦 Gzip(gzip)

content-length

3046

content-type

text/html

vary

Accept-Encoding

x-content-type-options

nosniff

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

datart-cz.mail.protection.outlook.com

Domain Information

datart.cz

Domain Age

29y 1m

Created

20.03.1997

Expires

09.10.2026

Last Updated

22.09.2023

Registrar

REG-CZNIC

DNSSEC

Not Enabled

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.

41/100

Not Mobile Friendly

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.

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman

WCAG AAA

71/100

Readability

/30

23/30

16px · LH --

Hierarchy

/20

10/20

WCAG

/25

24/25

9.4:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Times New Roman

Body Font

Times New Roman

Serif16px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~41 CPL

Narrow lines

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 61

Color Palette

8 unique colors

2.99:1 Fail Light

#ffffff

Background· 63.5%

#939694

Other· 2%

#001743

Primary· 24.9%

#ffb813

Accent· 5.4%

#323841

Secondary· 0.8%

#d7bf7d

Accent· 0.2%

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Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(1)

Website Identity

datart.cz

+420225991000

29 years old

Location detected: 🇨🇿 Czech Republicvia phone

REG-CZNIC📧 Microsoft 365

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Last analyzed: 06 May 2026 at 00:06

Historical Analysis & Change Tracking