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celnisprava.cz

https://celnisprava.cz· First analyzed 16 May 2026· Updated 16 May 2026
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celnisprava.cz
Desktop screenshot of celnisprava.cz
Mobile screenshot of celnisprava.cz
Mobile

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Hosting Provider

T-Mobile Czech Republic

IP Address

193.179.222.35

Site Location

🇨🇿 Czech Republicvia phone

Server Location

🇨🇿 Prague, Czechia

ASN

AS13036

CDN

Azure Cdn

Nameservers

ns1-08.azure-dns.com.ns2-08.azure-dns.net.ns3-08.azure-dns.org.ns4-08.azure-dns.info.

Performance

83

Core Web Vitals

Weight

First Contentful Paint
1.9 s10%
Speed Index
2.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
806 KB
61 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
T-Mobile Czech Republic
CDN
Azure Cdn

Technology Stack

7 Technologies Detected

CSS Frameworks

3
Tailwind CSS
UIkitAnt Design

Libraries

1
jQuery

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Customer Support

1
Zendesk

SEO Analysis

C61/100
18
6
2
Meta Tags9/15
Content12/12
Headings8/8
Technical16/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile2/4
Indexability3/3
C
celnisprava.czcelnisprava.cz

The Customs Administration of the Czech Republic

No description available for this page.

Title Length48 chars

Recommended: 50-60 chars (~292px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (12/22) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

8 rules

Local SEO

Local Search Readiness

20/100
Needs Work
6 9 2

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AI & LLM Readiness

D42/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
11/25

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
header/footer
Text ratio:3%
Words:708
Token eff.:Optimal
Sections/1K:8.5
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary54w
Descriptive Headingsavg 1.5w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
C
67/100
10
Passed
3
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
5/15
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
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
47/100
B
100 mg
CO₂e / view
806.3 KB
Page Weight
80%
Cleaner Than
New Visitor
114 mg
vs
Returning (cached)
57 mg
Annual (10K/mo)
12.0 kg
Emission Segments
Data Center
22 mg
Network
24 mg
Device
54 mg
Resource Breakdown
JavaScript
437.5 KB
Images
102.4 KB
CSS
229.5 KB
HTML
30.7 KB
Other
6.3 KB
Green Hosting Not Verified
T-Mobile Czech Republic
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

61%Fair
Interactive

HTTPS

No WAF

185d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

17.10.2025

Valid Until

17.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.celnisprava.gov.czcelnisprava.gov.cz

SHA-256 Fingerprint

14:6E:C9:38:43:A5:AA:9A:8B:BD:68:AD:AC:B1:15:D0:84:88:BB:5F...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟡 0s(private, max-age=0)
content-encoding
📦 Gzip(gzip)
content-length
31109
content-security-policy
frame-ancestors 'self' teams.microsoft.com *.teams.microsoft...
content-type
text/html; charset=utf-8
date
Sat, 16 May 2026 00:33:41 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

celnisprava-cz.mail.protection.outlook.com

Domain Information

celnisprava.cz

Domain Age
19y 9m

Created

16.08.2006

Expires

15.08.2033

Last Updated

29.06.2021

Registrar

REG-ZONER

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
D
57/100
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 maximum-scale=1
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

So:hne

WCAG AA
82/100
Readability
/30
25/30

17px · LH 1.60

Hierarchy
/20
19/20

2x ratio · ✓ H1→H6

WCAG
/25
20/25

4.57:1 min contrast

Performance
/25
18/25

1 font · 4 req

Heading Font

So:hne

Sans34px

Body Font

So:hne

Sans17px

Contrast Ratio

4.57:1

WCAG AA (≥4.5:1)

Reading Comfort

~37 CPL

Narrow lines
34px
h1
25px
h2
21px
h3
17px
h4
17px
p

✅ Excellent readability: 17px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 23/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.6:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

Buy on MyFontsFluid Type (rem)Flesch 23

Color Palette

4 unique colors
4.2:1 AA Large Light
#ffffff
Background· 50.6%
#757c88
Secondary· 7.1%
#d2d8de
Primary· 7.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
0
Async
0
Defer

Top Script Sources

local(17)translate.googleapis.com(2)translate.google.com(1)

Website Identity

celnisprava.cz

podatelna_generalnireditelstvicel@celnisprava.gov.cz
+420261331111
19 years old
Location detected: 🇨🇿 Czech Republicvia phone
REG-ZONER📧 Microsoft 365en-US

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Last analyzed: 16 May 2026 at 00:33

Historical Analysis & Change Tracking