xn--90ax2c.xn--p1ai

https://xn--90ax2c.xn--p1ai· First analyzed 16 May 2026· Updated 16 May 2026

Export

xn--90ax2c.xn--p1ai

Mobile

Sponsored

Hosting Provider

Russian State Library

IP Address

195.74.82.25

Site Location

🇷🇺 Russiavia ip

Server Location

🇷🇺 Moscow, Russia

ASN

AS41892

Organization

Russian State Library

Nameservers

ns1.xn--90ax2c.xn--p1ai.ns0.xn--90ax2c.xn--p1ai.

Performance

Core Web Vitals

Weight

First Contentful Paint

780 ms10%

Speed Index

1.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

11.2 MB

104 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Russian State Library

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

UI Components

Other

CSS Frameworks

Customer Support

SEO Analysis

C63/100

Meta Tags8/15

Content3/12

Headings6/8

Technical22/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

xn--90ax2c.xn--p1aixn--90ax2c.xn--p1ai

НЭБ — Национальная электронная библиотека — скачать и читать онлайн...

Национальная электронная библиотека РФ — крупнейшее собрание книг, диссертаций, музыкальных нот, карт и прочих материалов. ✔ Читайте онлайн ✔ Скачивайте ➤ Ru...

Title truncated. Description truncated.

Title Length103 chars

Recommended: 50-60 chars (~634px / 580px)

Description Length165 chars

Recommended: 120-160 chars

Issues (3)

• Title is too long (103 chars, ~634px). Will be truncated in search results.
• Very thin content (14 words). Search engines need substantial content for ranking.
• Most images missing alt text (66/66) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

622 URLs

622 sub-sitemaps

robots.txt

78 rules

Sitemap reference found

Local SEO

Local Search Readiness

12/100

Poor

3 14

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

Sponsored

AI & LLM Readiness

D41/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

7/25

Citation

7/25

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:2%

Words:795

Token eff.:Optimal

Structured Data

3 JSON-LD

Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

63/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

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.

3 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.

20/100

1.42 g

CO₂e / view

11.2 MB

Page Weight

Cleaner Than

New Visitor

1.63 g

Returning (cached)

813 mg

Annual (10K/mo)

170.8 kg

Emission Segments

Data Center

318 mg

Network

342 mg

Device

764 mg

Resource Breakdown

JavaScript

2.4 MB

Images

8.4 MB

CSS

431.0 KB

HTML

15.8 KB

Green Hosting Not Verified

Russian State Library

8 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

61%Fair

Interactive

HTTPS

No WAF

138d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

17.03.2026

Valid Until

02.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.rusneb.rurusneb.ru

SHA-256 Fingerprint

95:B4:3C:BB:38:01:71:81:42:BE:D6:2F:F9:54:28:BF:BF:9A:4D:37...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔵 1 Days(max-age=108000, must-revalidate)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self' https://metrika.yandex.ru https://met...

content-type

text/html; charset=UTF-8

date

Sat, 16 May 2026 18:16:52 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

xn--90ax2c.xn--p1ai

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.

53/100

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, maximum-scale=1

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG AAA

82/100

Readability

/30

22/30

22px · LH 1.50

Hierarchy

/20

15/20

1.05x ratio · ✓ H1→H6

WCAG

/25

23/25

17.64:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

-apple-system

Sans23px

Body Font

-apple-system

Sans22px

Contrast Ratio

17.64:1

WCAG AAA (≥7:1)

Reading Comfort

~37 CPL

Narrow lines

23px

44px

28px

22px

Major Third

Scale

✅ Excellent readability: 22px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 17.6:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

6 unique colors

Light

#ffffff

Primary· 70.3%

#12479e

Accent· 8%

#d3dcdd

Secondary· 6.4%

#d29653

Accent· 5.2%

#a8473c

Secondary· 5.2%

#698593

Secondary· 4.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)mc.yandex.ru(2)bitrix.info(1)culturaltracking.ru(1)

Website Identity

Национальная электронная библиотека

Organization

rusneb.ru/

Location detected: 🇷🇺 Russiavia ip

Social Profiles

Sponsored

Last analyzed: 16 May 2026 at 18:17

Historical Analysis & Change Tracking