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npu.cz

https://npu.cz· First analyzed 08 May 2026· Updated 08 May 2026
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npu.cz
Desktop screenshot of npu.cz
Mobile screenshot of npu.cz
Mobile

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Hosting Provider

Dedicated

IP Address

217.16.177.162

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS43541

Organization

Dedicated

Server

Apache

Nameservers

ns1.ignum.com.ns2.ignum.cz.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
546 ms10%
Speed Index
710 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.9 MB
87 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Dedicated

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

11 Technologies Detected

Fonts

3
Google FontsAdobe Fonts (Typekit)Adobe Fonts

Libraries

2
jQueryv1.12.0
jQuery UI

Other

1
Leaflet

UI Components

1
Fancybox

CSS Frameworks

1
Tailwind CSS

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

C64/100
17
8
2
Meta Tags11/15
Content11/12
Headings3/8
Technical15/25
E-E-A-T3/7
Images3/7
Links5/5
URL5/5
Social2/5
Freshness0/4
Mobile3/4
Indexability3/3
N
npu.cznpu.cz

The National Heritage Institute - Národní památkový ústav

Official web presentation

Title Length57 chars

Recommended: 50-60 chars (~345px / 580px)

Description Length25 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (43/45) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,528 URLs

robots.txt

6 rules

Local SEO

Local Search Readiness

8/100
Poor
3 12 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D44/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
14/25

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:1,180
Token eff.:Optimal
Sections/1K:5.9
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary118w
Descriptive Headingsavg 7.1w
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

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
68/100
11
Passed
3
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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.
4 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.
35/100
D
235 mg
CO₂e / view
1.9 MB
Page Weight
50%
Cleaner Than
New Visitor
268 mg
vs
Returning (cached)
134 mg
Annual (10K/mo)
28.1 kg
Emission Segments
Data Center
52 mg
Network
56 mg
Device
126 mg
Resource Breakdown
JavaScript
261.0 KB
Images
1.4 MB
CSS
112.1 KB
Fonts
1020 B
HTML
24.9 KB
Other
32.4 KB
Green Hosting Not Verified
Dedicated
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

51%Poor
Interactive

HTTPS

No WAF

82d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

01.05.2026

Valid Until

30.07.2026

Subject Alternative Names (2)

npu.czwww.npu.cz

SHA-256 Fingerprint

F9:E8:CF:DE:D2:F4:94:C6:AD:45:15:34:79:82:BD:14:ED:A7:F5:C9...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0, must-revalidate, private)
content-encoding
📦 Gzip(gzip)
content-language
en
content-length
25239
content-security-policy
frame-ancestors 'self';
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

npu-cz.l-v1.mx.microsoft

Domain Information

npu.cz

Domain Age
23y 7m

Created

26.09.2002

Expires

24.09.2027

Last Updated

09.01.2023

Registrar

REG-WEBGLOBE

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected

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
74/100
Mobile Friendly2 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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Arial

WCAG Partial
58/100
Readability
/30
25/30

18px · LH 1.40

Hierarchy
/20
8/20
WCAG
/25
9/25

1:1 min contrast

Performance
/25
16/25

System fonts

Heading Font

Arial

Sans

Body Font

Arial

Sans18px

Contrast Ratio

1:1

8 issues

Reading Comfort

~37 CPL

Narrow lines
60px
h2
26px
h3
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

GGoogle FontsAAdobe FontsFlesch 36

Color Palette

12 unique colors
12.96:1 AAA Light
#ffffff
Primary· 38.5%
#353032
Other· 8.2%
#746556
Secondary· 9.9%
#da2405
Primary· 9.4%
#4e463a
Secondary· 7.7%
#46172a
Accent· 3.7%
#a58b7d
Secondary· 3.3%
#9b596d
Secondary· 3.1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
2
Async
6
Defer

Top Script Sources

local(17)google-analytics.com(1)googletagmanager.com(1)cdnjs.cloudflare.com(1)

Website Identity

npu.cz

webeditor@npu.cz
23 years old
Location detected: 🇨🇿 Czech Republicvia tld
REG-WEBGLOBEen

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Last analyzed: 08 May 2026 at 21:49

Historical Analysis & Change Tracking