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ceskaposta.cz

https://ceskaposta.cz· First analyzed 01 May 2026· Updated 01 May 2026
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ceskaposta.cz
Desktop screenshot of ceskaposta.cz
Mobile screenshot of ceskaposta.cz
Mobile

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Hosting Provider

Czech Post IU1

IP Address

193.150.24.140

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS198143

Organization

Czech Post IU1

Nameservers

dns4.cpost.cz.dns1.cpost.cz.dns3.cpost.cz.dns2.cpost.cz.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
783 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
5.7 MB
118 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Czech Post IU1

Technology Stack

2 Technologies Detected

Frameworks

1
React

CSS Frameworks

1
Tailwind CSS

SEO Analysis

C67/100
18
6
1
Meta Tags10/15
Content11/12
Headings2/8
Technical20/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
C
ceskaposta.czceskaposta.cz

Úvodní stránka - Česká Pošta, s.p.

Česká pošta nabízí doručování balíků, doporučených zásilek a dopisů, sledování zásilek, poštovní služby, výdejní místa i online objednání. Najděte nejbližší ...

Description truncated.
Title Length34 chars

Recommended: 50-60 chars (~204px / 580px)

Description Length201 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

323 URLs

323 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

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
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
10/25

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
nav
Text ratio:5%
Words:1,348
Token eff.:Optimal
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary1316w
Descriptive Headings
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
B
75/100
11
Passed
3
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
12/20
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
9/15
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.
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.
18/100
F
724 mg
CO₂e / view
5.7 MB
Page Weight
5%
Cleaner Than
New Visitor
827 mg
vs
Returning (cached)
414 mg
Annual (10K/mo)
86.8 kg
Emission Segments
Data Center
162 mg
Network
174 mg
Device
388 mg
Resource Breakdown
JavaScript
2.0 MB
Images
2.2 MB
CSS
921.7 KB
HTML
193.6 KB
Other
353.6 KB
Green Hosting Not Verified
Czech Post IU1
8 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

86%Very Good
Interactive

HTTPS

No WAF

6d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

29.04.2025

Valid Until

07.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (10)

ceskaposta.czamex.postaonline.czb2b.postaonline.czcgw.postaonline.czmgi.ceskaposta.czmojeposta.ceskaposta.czpostaonline.czshop.postaonline.cz+2 more

SHA-256 Fingerprint

A2:31:85:9F:33:F3:86:B7:66:3F:C2:92:84:6A:AF:0F:39:8A:3B:21...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(private, no-cache, no-store, must-revalidate)
connection
Keep-Alive
content-security-policy
default-src 'self' https: data:; script-src 'self' https...
content-type
text/html;charset=UTF-8
date
Fri, 01 May 2026 14:01:40 GMT
expires
Thu, 01 Jan 1970 00:00:00 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

75

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (4)

smtp03.cpost.cz
smtp04.cpost.cz
smtp01.cpost.cz
smtp02.cpost.cz

Domain Information

ceskaposta.cz

Domain Age
24y 11m

Created

18.05.2001

Expires

24.05.2027

Last Updated

15.04.2024

Registrar

REG-ACTIVE24

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.
C
67/100
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
initial-scale=1.0, width=device-width
3 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Open Sans

WCAG AAA
54/100
Readability
/30
13/30

13px · LH 1.40

Hierarchy
/20
9/20
WCAG
/25
19/25

11.49:1 min contrast

Performance
/25
13/25

1 font · 3 req

Heading Font

Open Sans

Body Font

Open Sans

Sans13px

Contrast Ratio

11.49:1

WCAG AAA (≥7:1)

Reading Comfort

~41 CPL

Narrow lines
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 30/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 11.5:1).

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

Buy on MyFontsFlesch 30

Color Palette

10 unique colors
6.29:1 AA Light
#ffffff
Background· 39%
#5e6065
Other· 4.2%
#f2f1ec
Primary· 12.8%
#f5b718
Accent· 10.4%
#335088
Secondary· 9.100000000000001%
#1e222b
Secondary· 7.4%
#7797ac
Secondary· 5.7%
#021d57
Accent· 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

21 Resources

11
Scripts
10
Styles
5
Async
0
Defer

Top Script Sources

local(8)ceskaposta.cz(3)

Website Identity

ceskaposta.cz

24 years old
Location detected: 🇨🇿 Czech Republicvia tld
REG-ACTIVE24cs-CZ

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Last analyzed: 01 May 2026 at 14:02

Historical Analysis & Change Tracking