nck.pl

https://nck.pl· First analyzed 02 May 2026· Updated 02 May 2026

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nck.pl

Mobile

Sponsored

Hosting Provider

Atman Sp. z o.o

IP Address

77.79.247.197

Site Location

🇵🇱 Polandvia tld

Server Location

🇵🇱 Warsaw, Poland

ASN

AS34342

Organization

Atman Sp. z o.o

Server

Nginx

Nameservers

dns2.home.pl.dns3.home.pl.dns.home.pl.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

566 ms10%

Speed Index

736 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

5.4 MB

38 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Atman Sp. z o.o

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

9 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Web Servers

SEO Analysis

C66/100

Meta Tags9/15

Content11/12

Headings6/8

Technical17/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

nck.plnck.pl

Strona główna | Narodowe Centrum Kultury

No description available for this page.

Title Length40 chars

Recommended: 50-60 chars (~252px / 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 (15/17) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Local SEO

Local Search Readiness

14/100

Poor

4 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.

13/25

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

navheader/footer

Text ratio:5%

Words:697

Token eff.:Optimal

Sections/1K:10

Depth:2/5

Structured Data

Microdata

Citation Readiness

Opening Summary211w

Descriptive Headingsavg 1.9w

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.

78/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

18/20

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

6/15

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.

15/100

682 mg

CO₂e / view

5.4 MB

Page Weight

Cleaner Than

New Visitor

780 mg

Returning (cached)

390 mg

Annual (10K/mo)

81.9 kg

Emission Segments

Data Center

152 mg

Network

164 mg

Device

366 mg

Resource Breakdown

JavaScript

432.2 KB

Images

2.8 MB

CSS

2.1 MB

Fonts

2.9 KB

HTML

26.9 KB

Green Hosting Not Verified

Atman Sp. z o.o

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

61%Fair

Interactive

HTTPS

No WAF

108d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

home.pl S.A.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

19.08.2025

Valid Until

19.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.nck.plnck.pl

SHA-256 Fingerprint

1A:F3:DD:C9:90:CD:1A:A1:A9:ED:D9:33:49:4B:C4:2E:F5:7D:C3:EB...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Sat, 02 May 2026 15:34:14 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

nck-pl.mail.protection.outlook.com

Domain Information

nck.pl

Domain Age

23y 11m

Created

04.06.2002

Expires

03.06.2026

Last Updated

15.05.2025

Registrar

home.pl sp. z o.o.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

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

width=device-width, initial-scale=1.0, maximum-scale=1

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG Partial

58/100

Readability

/30

8/30

14px · LH 1.29

Hierarchy

/20

19/20

3.29x ratio · ✓ H1→H6

WCAG

/25

16/25

1:1 min contrast

Performance

/25

15/25

System fonts

Heading Font

Helvetica Neue

Sans46px

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

1:1

7 issues

Reading Comfort

Single Font Family

left aligned

46px

32px

14px

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

⚠️ Tight line spacing (1.29). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 3.3x larger than body text.

GGoogle FontsFlesch 0

Color Palette

8 unique colors

4.29:1 AA Large Dark

#7a7a7a

Other· 40.3%

#ffffff

Primary· 13.6%

#5d452e

Secondary· 13.8%

#ba1f30

Primary· 13.799999999999999%

#3a1d15

Secondary· 6.2%

#2f3c31

Secondary· 5.9%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)connect.facebook.net(2)local(2)maps.googleapis.com(1)

Website Identity

nck.pl

23 years old

Location detected: 🇵🇱 Polandvia tld

home.pl sp. z o.o.📧 Microsoft 365pl

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

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Last analyzed: 02 May 2026 at 15:34

Historical Analysis & Change Tracking