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e-sbirka.cz

https://e-sbirka.cz· First analyzed 19 May 2026· Updated 19 May 2026
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e-sbirka.cz
Desktop screenshot of e-sbirka.cz
Mobile screenshot of e-sbirka.cz
Mobile

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Hosting Provider

CMS Customers11

IP Address

185.17.214.151

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS48298

Organization

CMS Customers11

CDN

CDN

Nameservers

ns1.regzone.info.ns1.regzone.cz.ns1.regzone.de.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
870 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.9 MB
45 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Ghost

Technology Stack

2 Technologies Detected

Frameworks

1
Angularv10.1.6

CSS Frameworks

1
Tailwind CSS

SEO Analysis

D44/100
13
9
1
Meta Tags4/15
Content7/12
Headings6/8
Technical11/21
E-E-A-T0/7
Images0/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
E
e-sbirka.cze-sbirka.cz

Hlavní stránka - e-Sbírka

No description available for this page.

Title Length25 chars

Recommended: 50-60 chars (~152px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

10 issues found

Upgrade to view details

Local SEO

Local Search Readiness

3/100
Poor
1 14 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

D44/100
Bot Access
20/25
Machine Read.
16/25
Schema Data
0/25
Citation
8/25

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
navheader/footer
Text ratio:4%
Words:451
Token eff.:Optimal
Sections/1K:42.1
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary15w
Descriptive Headingsavg 4.8w
Canonical URL
Open Graph0/3
Twitter Card0/3
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.
B
78/100
11
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
7/15
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.
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.
33/100
D
235 mg
CO₂e / view
1.9 MB
Page Weight
50%
Cleaner Than
New Visitor
269 mg
vs
Returning (cached)
135 mg
Annual (10K/mo)
28.2 kg
Emission Segments
Data Center
53 mg
Network
57 mg
Device
126 mg
Resource Breakdown
JavaScript
634.0 KB
CSS
1.2 MB
HTML
778 B
Other
8.6 KB
Green Hosting Not Verified
CMS Customers11
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

86%Very Good
Interactive

HTTPS

No WAF

153d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.10.2025

Valid Until

19.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (5)

e-sbirka.gov.czapi.e-sbirka.gov.cze-sbirka.cms2.czportal.e-sbirka.cms2.czportal.e-sbirka.gov.cz

SHA-256 Fingerprint

25:7A:13:87:D2:D1:D4:7E:F7:DC:71:EB:CA:08:D2:90:50:F5:4C:34...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-security-policy
default-src 'self' https://e-sbirka.gov.cz; img-src 'self' b...
content-type
text/html
date
Tue, 19 May 2026 22:31:24 GMT
etag
W/"69df9017-410"
last-modified
Wed, 15 Apr 2026 13:18:15 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

30

SPF
DKIM
DMARC

Domain Information

e-sbirka.cz

Domain Age
18y 7m

Created

12.10.2007

Expires

11.10.2026

Last Updated

26.09.2023

Registrar

REG-ZONER

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
68/100
Mobile Friendly8 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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Roboto

WCAG Partial
66/100
Readability
/30
17/30

14px · LH 1.50

Hierarchy
/20
15/20

1.86x ratio

WCAG
/25
17/25

1:1 min contrast

Performance
/25
17/25

System fonts

Heading Font

Roboto

Sans26px

Body Font

Roboto

Sans14px

Contrast Ratio

1:1

15 issues

Reading Comfort

~34 CPL

Narrow lines
26px
h1
18px
h2
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ System fonts: Zero font loading delay — best possible LCP impact.

⚠️ High font requests: 7 font files loaded. Consider variable fonts or subsetting.

Flesch 54

Color Palette

6 unique colors
Light
#ffffff
Background· 44.80000000000001%
#1d5cbe
Accent· 35.6%
#20265e
Primary· 6%
#1f47b5
Accent· 5.7%

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

11 Resources

8
Scripts
3
Styles
1
Async
3
Defer

Top Script Sources

assets(2)runtime-es2015.343764ca8d9626a937e2.js(1)runtime-es5.343764ca8d9626a937e2.js(1)polyfills-es5.cfcaab4b92421ead25f9.js(1)polyfills-es2015.2d0d98ac97eeff833865.js(1)

Website Identity

e-sbirka.cz

18 years old
Location detected: 🇨🇿 Czech Republicvia tld
REG-ZONERcs

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Last analyzed: 19 May 2026 at 22:31

Historical Analysis & Change Tracking