cnshb.ru

https://cnshb.ru· First analyzed 19 May 2026· Updated 19 May 2026

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cnshb.ru

Mobile

Sponsored

Hosting Provider

SDK Ltd

IP Address

89.20.35.54

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Moscow, Russia

ASN

AS41475

Organization

SDK Ltd

Server

Nginx

Nameservers

ns2.masterhost.ru.ns.masterhost.ru.ns1.masterhost.ru.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.8 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.6 MB

54 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

SDK Ltd

Technology Stack

4 Technologies Detected

Libraries

CSS Frameworks

Web Servers

Frameworks

SEO Analysis

D53/100

Meta Tags14/15

Content12/12

Headings0/8

Technical12/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

cnshb.rucnshb.ru

Центральная Научная Сельскохозяйственная Библиотека

ФГБНУ ЦНСХБ - одна из крупнейших сельскохозяйственных библиотек мира, выполняющая функции отраслевой национальной библиотеки России по сельскому хозяйству и ...

Description truncated.

Title Length51 chars

Recommended: 50-60 chars (~316px / 580px)

Description Length171 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (328/336) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

43 URLs

43 sub-sitemaps

robots.txt

59 rules

Sitemap reference found

Local SEO

Local Search Readiness

0/100

Poor

15 2

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

Sponsored

AI & LLM Readiness

F26/100

Bot Access

20/25

Machine Read.

2/25

Schema Data

0/25

Citation

4/25

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:24%

Words:4,269

Token eff.:Poor Structure

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

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...

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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.

35/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

3/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

2/15

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.

5 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.

17/100

327 mg

CO₂e / view

2.6 MB

Page Weight

30%

Cleaner Than

New Visitor

373 mg

Returning (cached)

187 mg

Annual (10K/mo)

39.2 kg

Emission Segments

Data Center

73 mg

Network

78 mg

Device

175 mg

Resource Breakdown

JavaScript

323.7 KB

Images

1.9 MB

CSS

308.8 KB

HTML

26.3 KB

Green Hosting Not Verified

SDK Ltd

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

21%Critical

Interactive

HTTPS

No WAF

18d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

08.03.2026

Valid Until

06.06.2026

Subject Alternative Names (2)

*.cnshb.rucnshb.ru

SHA-256 Fingerprint

95:6A:DD:3B:69:3F:F1:81:1A:54:D6:5C:CD:3A:71:7F:85:B1:51:66...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Tue, 19 May 2026 05:26:40 GMT

server

nginx

x-powered-by

ASP.NET

x-xss-protection

1; mode=block

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mx1.masterhost.ru

Domain Information

cnshb.ru

Domain Age

28 years

Created

30.04.1998

Expires

31.05.2026

Registrar

MASTERHOST-RU

DNSSEC

Not Enabled

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.

56/100

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

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Verdana

WCAG AA

55/100

Readability

/30

16/30

12px · LH 1.50

Hierarchy

/20

10/20

WCAG

/25

15/25

6.82:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Verdana

Body Font

Verdana

Sans12px

Contrast Ratio

6.82:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Family

left aligned

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.8:1).

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

7 unique colors

Light

#ffffff

Background· 61.99999999999999%

#e5ebe4

Primary· 7.4%

#8da28c

Secondary· 6.7%

#c2ccbf

Secondary· 6.5%

#cedecf

Secondary· 6.4%

#a3c1a5

Secondary· 6%

#2c6b29

Secondary· 5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Quora PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

..(3)top-fwz1.mail.ru(2)mc.yandex.ru(1)code.jivo.ru(1)ssi(1)

Website Identity

cnshb.ru

28 years old

Location detected: 🇷🇺 Russiavia tld

MASTERHOST-RU

Social Profiles

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Last analyzed: 19 May 2026 at 05:27

Historical Analysis & Change Tracking