instytutksiazki.pl

https://instytutksiazki.pl· First analyzed 13 May 2026· Updated 13 May 2026

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instytutksiazki.pl

Mobile

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Hosting Provider

home.pl S.A.

IP Address

46.242.129.91

Site Location

🇵🇱 Polandvia tld

Server Location

🇵🇱 Szczecin, Poland

ASN

AS12824

Organization

home.pl S.A.

Server

Nginx

Nameservers

ns1.makplus.pl.ns2.makplus.pl.

Performance

Core Web Vitals

Weight

First Contentful Paint

974 ms10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.1 MB

53 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Instytut Książkiv1.0Custom

by Nowy Kolektyw

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

14 Technologies Detected

Plugins

WPML

All In One Wp Security And Firewall

Libraries

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Analytics

UI Components

CSS Frameworks

Web Servers

Languages

SEO Analysis

A82/100

Meta Tags9/15

Content12/12

Headings8/8

Technical25/25

E-E-A-T3/7

Images1/7

Links4/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

instytutksiazki.plinstytutksiazki.pl

Instytut Książki

Instytut Książki jest narodową instytucją kultury powołaną do promocji polskiej literatury na świecie oraz popularyzacji książek i czytelnictwa w kraju.

Title Length16 chars

Recommended: 50-60 chars (~92px / 580px)

Description Length152 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (13/13) — critical for accessibility and SEO

6 issues found

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Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

21/100

Needs Work

6 11 1

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AI & LLM Readiness

D48/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

3/25

Citation

13/25

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:14%

Words:1,620

Token eff.:Optimal

Sections/1K:4.9

Depth:2/5

Structured Data

3 JSON-LD

WebSiteBreadcrumbList

Citation Readiness

Opening Summary11w

Descriptive Headingsavg 3.4w

Canonical URL

Open Graph3/3

Twitter Card1/3

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.

87/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

17/20

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

13/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.

19/100

515 mg

CO₂e / view

4.1 MB

Page Weight

15%

Cleaner Than

New Visitor

588 mg

Returning (cached)

294 mg

Annual (10K/mo)

61.8 kg

Emission Segments

Data Center

115 mg

Network

124 mg

Device

276 mg

Resource Breakdown

JavaScript

645.6 KB

Images

1.0 MB

CSS

2.4 MB

HTML

15.9 KB

Other

604 B

Green Hosting Not Verified

home.pl S.A.

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

170d

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

15.04.2026

Valid Until

30.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.instytutksiazki.plinstytutksiazki.pl

SHA-256 Fingerprint

B2:17:D3:3C:2F:D2:99:AB:67:71:B9:4A:31:92:ED:CE:16:2D:72:93...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

16032

content-type

text/html; charset=UTF-8

date

Wed, 13 May 2026 23:28:49 GMT

link

<https://www.instytutksiazki.pl/wp-json/>; rel="https://api....

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (1)

instytutksiazki-pl.mail.protection.outlook.com

Domain Information

instytutksiazki.pl

Domain Age

22y 3m

Created

13.02.2004

Expires

12.02.2027

Last Updated

12.01.2026

Registrar

home.pl sp. z o.o.

DNSSEC

Not Enabled

Privacy & Compliance

CookieConsent.js

Cookie Consent Banner

CookieConsent.js

GDPR Indicators

Cookie consent banner detected

CMP: CookieConsent.js

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.

72/100

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

elza + Sentient-webfont

WCAG AA

75/100

Readability

/30

16/30

40px · LH 1.10

Hierarchy

/20

19/20

2.4x ratio · ✓ H1→H6

WCAG

/25

20/25

5.77:1 min contrast

Performance

/25

20/25

2 fonts · 3 req

Heading Font

elza

Sans96px

Body Font

Sentient-webfont

Sans40px

Contrast Ratio

5.77:1

WCAG AA (≥4.5:1)

Reading Comfort

~40 CPL

Narrow lines

96px

72px

40px

26px

40px

✅ Excellent readability: 40px body text is ideal for all devices.

⚠️ Tight line spacing (1.10). Increase to 1.4–1.6 for better readability.

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.8:1).

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

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

AAdobe Fonts Buy on MyFontsFluid Type (rem)Flesch 0

Color Palette

6 unique colors

2.28:1 Fail Light

#ffffff

Background· 25%

#afaba9

Other· 3.5%

#eae7e0

Primary· 52.6%

#64182c

Accent· 11.1%

#002675

Accent· 4.1%

#5c6d90

Secondary· 3.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

instytutksiazki.pl(16)googletagmanager.com(1)maps.googleapis.com(1)

Website Identity

Instytut Książki

Instytut Książki jest narodową instytucją kultury powołaną do promocji polskiej literatury na świecie oraz popularyzacji książek i czytelnictwa w kraju.

www.instytutksiazki.pl/

22 years old

Location detected: 🇵🇱 Polandvia tld

home.pl sp. z o.o.📧 Microsoft 365pl-PL

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

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Last analyzed: 13 May 2026 at 23:29

Historical Analysis & Change Tracking