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nbuv.gov.ua

https://nbuv.gov.ua· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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nbuv.gov.ua
Desktop screenshot of nbuv.gov.ua
Mobile screenshot of nbuv.gov.ua
Mobile

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Hosting Provider

UARNet Kyiv

IP Address

194.44.11.136

Site Location

🇺🇦 Ukrainevia tld

Server Location

🇺🇦 Lviv, Ukraine

ASN

AS3255

Organization

UARNet Kyiv

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

skip.ns.cloudflare.com.robin.ns.cloudflare.com.

Performance

84

Core Web Vitals

Weight

First Contentful Paint
1.9 s10%
Speed Index
2.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.8 MB
127 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

9 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Segment

Libraries

2
jQuery
jQuery UI

UI Components

1
Lightbox

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginxv1.27.1

Languages

1
PHPv5.4.45

SEO Analysis

D55/100
13
9
2
Meta Tags10/15
Content11/12
Headings8/8
Technical7/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nbuv.gov.uanbuv.gov.ua

Національна бібліотека України імені В. І. Вернадського

No description available for this page.

Title Length55 chars

Recommended: 50-60 chars (~336px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

11 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

39 rules

Local SEO

Local Search Readiness

12/100
Poor
4 11 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

F36/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
Citation
5/25

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
Text ratio:12%
Words:1,089
Token eff.:Optimal
Sections/1K:29.4

Structured Data

No Schema

Citation Readiness

Opening Summary10w
Descriptive Headingsavg 2.2w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
D
58/100
6
Passed
5
Critical
2
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
7/15
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
1/15
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.
15/100
D
229 mg
CO₂e / view
1.8 MB
Page Weight
50%
Cleaner Than
New Visitor
262 mg
vs
Returning (cached)
131 mg
Annual (10K/mo)
27.5 kg
Emission Segments
Data Center
51 mg
Network
55 mg
Device
123 mg
Resource Breakdown
JavaScript
286.4 KB
Images
1.3 MB
CSS
164.5 KB
HTML
77.2 KB
Green Hosting Not Verified
UARNet Kyiv
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

56%Poor
Interactive

HTTPS

No WAF

81d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.04.2026

Valid Until

19.07.2026

Subject Alternative Names (2)

nbuv.gov.uawww.nbuv.gov.ua

SHA-256 Fingerprint

02:A4:6E:2D:9E:08:45:02:A3:23:EB:F8:C7:6E:DF:9A:A5:89:DC:D4...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-cache, must-revalidate)
content-language
uk
content-type
text/html; charset=utf-8
date
Tue, 28 Apr 2026 20:11:03 GMT
expires
Sun, 19 Nov 1978 05:00:00 GMT
server
nginx/1.27.1
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mail.nbuv.gov.ua

Domain Information

nbuv.gov.ua

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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.
F
34/100
Not Mobile Friendly
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.
5 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica

WCAG Partial
51/100
Readability
/30
11/30

13px · LH 1.20

Hierarchy
/20
10/20

2.15x ratio

WCAG
/25
16/25

2.52:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Helvetica

Sans28px

Body Font

Helvetica

Sans13px

Contrast Ratio

2.52:1

3 issues

Reading Comfort

~65 CPL

Optimal (45–75)
28px
h1
20px
h2
15px
h3
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~65 chars/line (ideal 45–75 CPL).

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

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 2.5:1).

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

Buy on MyFontsFlesch 0

Color Palette

6 unique colors
Light
#f9f9f9
Background· 27.5%
#ffefd5
Primary· 34.2%
#dfdcd2
Secondary· 16.1%
#c0b6aa
Border· 9.4%
#7c6d58
Secondary· 8.3%

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

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Scripts & Styles

20 Resources

20
Scripts
0
Styles
2
Async
0
Defer

Top Script Sources

nbuv.gov.ua(18)cse.google.com(1)ssl.google-analytics.com(1)

Website Identity

nbuv.gov.ua

service@nbuv.gov.ua

Контактна інформація БібліотекиУкраїна, 03039, м. Київ, Голосіївський пр., 3Корпус по вул. ВолодимирськійДля читачів / к

Location detected: 🇺🇦 Ukrainevia tld

Social Profiles

Facebook

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Last analyzed: 28 Apr 2026 at 20:11

Historical Analysis & Change Tracking