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nsk.hr

https://nsk.hr· First analyzed 01 May 2026· Updated 01 May 2026
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nsk.hr
Desktop screenshot of nsk.hr
Mobile screenshot of nsk.hr
Mobile

Sponsored

Hosting Provider

CARNET

IP Address

161.53.240.45

Site Location

🇭🇷 Croatiavia phone

Server Location

🇭🇷 Zagreb, Croatia

ASN

AS2108

Server

Apache

Nameservers

bjesomar.srce.hr.nsk-aa.nsk.hr.nsk-bb.nsk.hr.sysdns.carnet.hr.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
905 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1 MB
49 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
WordPress
Infrastructure
Hosting
CARNET

Technology Stack

15 Technologies Detected

Plugins

7
WPML
Contact Form 7
Cookie NoticeWeekly Class
Wp Smush Pro
Yoast SEO
WPML

CSS Frameworks

2
Bootstrap
Tailwind CSS

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.7.1

Fonts

1
Google Fonts

Web Servers

1
Apachev2.4.66

Security

1
reCAPTCHA

SEO Analysis

A82/100
24
8
0
Meta Tags15/15
Content10/12
Headings6/8
Technical25/25
E-E-A-T0/7
Images4/7
Links2/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
N
nsk.hrnsk.hr

Naslovnica - Nacionalna i sveučilišna knjižnica u Zagrebu

Dobrodošli na stranice najveće hrvatske knjižnice – nacionalne knjižnice Republike Hrvatske i središnje knjižnice Sveučilišta u Zagrebu.

Title Length57 chars

Recommended: 50-60 chars (~331px / 580px)

Description Length136 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    14 URLs

    14 sub-sitemaps

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    26/100
    Needs Work
    8 9 1

    Sponsored

    AI & LLM Readiness

    D48/100
    Bot Access
    20/25
    Machine Read.
    10/25
    Schema Data
    4/25
    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:3%
    Words:708
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    3 JSON-LD
    WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary111w
    Descriptive Headingsavg 4.9w
    Canonical URL
    Open Graph2/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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.
    B
    78/100
    12
    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
    18/20
    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
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    53/100
    B
    130 mg
    CO₂e / view
    1.0 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    149 mg
    vs
    Returning (cached)
    74 mg
    Annual (10K/mo)
    15.6 kg
    Emission Segments
    Data Center
    29 mg
    Network
    31 mg
    Device
    70 mg
    Resource Breakdown
    JavaScript
    151.0 KB
    Images
    349.2 KB
    CSS
    414.7 KB
    Fonts
    114.8 KB
    HTML
    22.7 KB
    Green Hosting Not Verified
    CARNET
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    43d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    Hellenic Academic and Research Institutions CA

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    13.06.2025

    Valid Until

    13.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    nsk.hrwww.nsk.hr

    SHA-256 Fingerprint

    76:24:C0:4C:E4:9D:5B:35:C4:32:24:11:D5:8E:7F:D1:AF:C7:05:4C...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-length
    22949
    content-type
    text/html; charset=UTF-8
    date
    Fri, 01 May 2026 02:34:29 GMT
    keep-alive
    timeout=5, max=100
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    nsk-hr.mail.protection.outlook.com

    Domain Information

    nsk.hr

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Notice (WP)

    Cookie Consent Banner
    Cookie Notice (WP)
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookie Notice (WP)

    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 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, shrink-to-fit=no
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    FrankRuhlLibre + Lato

    WCAG Partial
    61/100
    Readability
    /30
    24/30

    16px · LH 1.55

    Hierarchy
    /20
    14/20

    3x ratio

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    7/25

    3 fonts · 7 req

    Heading Font

    FrankRuhlLibre

    Sans48px

    Body Font

    Lato

    Sans16px

    Contrast Ratio

    1:1

    2 issues

    Reading Comfort

    ~38 CPL

    Narrow lines
    48px
    h1
    36px
    h2
    24px
    h3
    16px
    p

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.55 ratio (ideal range 1.4–1.6).

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

    ⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 3.0x larger than body text.

    Buy on MyFontsFluid Type (rem)Flesch 0

    Color Palette

    8 unique colors
    11.97:1 AAA Light
    #ffffff
    Background· 32.9%
    #353738
    Other· 5.5%
    #1c2b33
    Primary· 21.2%
    #16191d
    Text· 16.8%

    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

    Sponsored

    Scripts & Styles

    28 Resources

    20
    Scripts
    8
    Styles
    3
    Async
    1
    Defer

    Top Script Sources

    nsk.hr(15)gstatic.com(1)googletagmanager.com(1)api.omoguru.com(1)google.com(1)

    Website Identity

    Naslovnica - Nacionalna i sveučilišna knjižnica u Zagrebu

    Dobrodošli na stranice najveće hrvatske knjižnice – nacionalne knjižnice Republike Hrvatske i središnje knjižnice Sveučilišta u Zagrebu.

    informacijski.centar@nsk.hr
    +38516164040
    nsk.hr/
    Location detected: 🇭🇷 Croatiavia phone
    📧 Microsoft 365hr

    Sponsored

    Last analyzed: 01 May 2026 at 02:34

    Historical Analysis & Change Tracking