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nzip.cz

https://nzip.cz· First analyzed 14 May 2026· Updated 14 May 2026
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nzip.cz
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Hosting Provider

Ustav zdravotnickych informaci a statistiky Ceske republiky

IP Address

193.16.104.138

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS39453

Organization

Ustav zdravotnickych informaci a statistiky Ceske republiky

Server

Apache

Nameservers

kasel.mzcr.cz.migrena.kcict.cz.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
555 ms10%
Speed Index
722 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
686 KB
21 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Ustav zdravotnickych informaci a statistiky Ceske republiky

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Analytics

2
Google Analytics 4
Matomo

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Apache

SEO Analysis

B72/100
22
3
2
Meta Tags14/15
Content3/12
Headings7/8
Technical21/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nzip.cznzip.cz

NZIP – Národní zdravotnický informační portál

Snadno si vyhledejte garantované informace o zdravém životním stylu a nemocích, rady a doporučení v životních situacích i kontakt na svého lékaře.

Title Length45 chars

Recommended: 50-60 chars (~273px / 580px)

Description Length146 chars

Recommended: 120-160 chars

Issues (2)

  • • Very thin content (20 words). Search engines need substantial content for ranking.
  • • Most images missing alt text (4/4) — critical for accessibility and SEO

5 issues found

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Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

9 rules

Sitemap reference found

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

D41/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
3/25
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:2%
Words:1,116
Token eff.:Optimal
Depth:1/5

Structured Data

1 JSON-LD
WebSiteSearchAction

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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.
C
66/100
8
Passed
2
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
8/20
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
0/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
53/100
B
85 mg
CO₂e / view
685.9 KB
Page Weight
80%
Cleaner Than
New Visitor
97 mg
vs
Returning (cached)
49 mg
Annual (10K/mo)
10.2 kg
Emission Segments
Data Center
19 mg
Network
20 mg
Device
46 mg
Resource Breakdown
JavaScript
233.2 KB
Images
34.4 KB
CSS
233.2 KB
HTML
185.1 KB
Green Hosting Not Verified
Ustav zdravotnickych informaci a statistiky Ceske republiky
3 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

145d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Alpiro s.r.o.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.09.2025

Valid Until

06.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.nzip.cznzip.cz

SHA-256 Fingerprint

92:DC:23:B5:A4:A3:57:1D:15:D5:0C:0C:50:00:03:C9:8C:22:50:E4...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-headers
origin, x-requested-with, content-type
access-control-allow-methods
PUT, GET, POST, DELETE, OPTIONS
access-control-allow-origin
*
cache-control
🟡 0s(max-age=0, must-revalidate, private)
content-encoding
📦 Gzip(gzip)
content-length
189205
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

nzip-cz.mail.protection.outlook.com

Domain Information

nzip.cz

Domain Age
7y 7m

Created

20.09.2018

Expires

19.09.2026

Last Updated

03.05.2021

Registrar

REG-INTERNET-CZ

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked
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.
B
70/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Public Sans Web

WCAG AA
73/100
Readability
/30
17/30

12px · LH 1.40

Hierarchy
/20
16/20

3x ratio

WCAG
/25
22/25

6.54:1 min contrast

Performance
/25
18/25

1 font · 4 req

Heading Font

Public Sans Web

Sans36px

Body Font

Public Sans Web

Sans12px

Contrast Ratio

6.54:1

WCAG AA (≥4.5:1)

Reading Comfort

~45 CPL

Optimal (45–75)
36px
h1
28px
h2
20px
h3
12px
p

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

✅ Optimal line length: ~45 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 30/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.5:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

Buy on MyFontsFlesch 30

Color Palette

5 unique colors
Light
#ffffff
Primary· 52.199999999999996%
#3e5aa4
Primary· 33%
#909bb0
Secondary· 5.1%
#c5ccd6
Secondary· 5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

12 Resources

9
Scripts
3
Styles
2
Async
7
Defer

Top Script Sources

local(7)matomo.uzis.cz(2)

Website Identity

nzip.cz

7 years old
Location detected: 🇨🇿 Czech Republicvia tld
REG-INTERNET-CZ📧 Microsoft 365cs

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Last analyzed: 14 May 2026 at 07:58

Historical Analysis & Change Tracking