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znanium.com

https://znanium.com· First analyzed 11 May 2026· Updated 11 May 2026
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znanium.com
Desktop screenshot of znanium.com
Mobile screenshot of znanium.com
Mobile

Sponsored

Hosting Provider

Mastertel

IP Address

195.133.242.133

Site Location

🇷🇺 Russiavia ip

Server Location

🇷🇺 Moscow, Russia

ASN

AS29226

Organization

Mastertel

Server

Nginx

Nameservers

ns1.selectel.ru.ns3.selectel.ru.ns2.selectel.ru.ns4.selectel.ru.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
866 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.2 MB
125 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Mastertel

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

9 Technologies Detected

Libraries

3
jQuery
jQuery UI
Moment.js

UI Components

2
SwiperOwl Carousel

CSS Frameworks

2
Bootstrap
Tailwind CSS

Fonts

1
Google Fonts

Web Servers

1
Nginx

SEO Analysis

B74/100
20
8
0
Meta Tags10/15
Content10/12
Headings8/8
Technical22/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
Z
znanium.comznanium.com

Электронно-библиотечная система Znanium

Электронная библиотечная система Znanium — цифровая коллекция современных образовательных и научных изданий, доступная учащимся и преподавателям учебных заве...

Description truncated.
Title Length39 chars

Recommended: 50-60 chars (~242px / 580px)

Description Length417 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    19 URLs

    19 sub-sitemaps

    robots.txt

    192 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    10/100
    Poor
    3 13 1

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

    Sponsored

    AI & LLM Readiness

    F39/100
    Bot Access
    20/25
    Machine Read.
    3/25
    Schema Data
    2/25
    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
    Text ratio:9%
    Words:4,170
    Token eff.:Poor Structure
    Sections/1K:0.7

    Structured Data

    1 JSON-LD
    Organization×1.1

    Citation Readiness

    Opening Summary127w
    Descriptive Headingsavg 3w
    Canonical URL
    Open Graph3/3
    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

    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.
    C
    62/100
    8
    Passed
    6
    Critical
    2
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    9/20
    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
    6/15
    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.
    5 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.
    18/100
    F
    401 mg
    CO₂e / view
    3.2 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    458 mg
    vs
    Returning (cached)
    229 mg
    Annual (10K/mo)
    48.1 kg
    Emission Segments
    Data Center
    90 mg
    Network
    96 mg
    Device
    215 mg
    Resource Breakdown
    JavaScript
    500.5 KB
    Images
    2.1 MB
    CSS
    549.1 KB
    Fonts
    1.9 KB
    HTML
    68.2 KB
    Green Hosting Not Verified
    Mastertel
    8 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    25%Critical
    Critical / Transactional

    HTTPS

    No WAF

    82d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/2

    Valid From

    03.05.2026

    Valid Until

    01.08.2026

    Subject Alternative Names (1)

    znanium.ru

    SHA-256 Fingerprint

    BC:3C:4E:41:2A:85:62:6D:35:63:9B:48:73:F3:D9:9C:6C:E1:D3:93...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-store, no-cache, must-revalidate)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=UTF-8
    date
    Mon, 11 May 2026 10:17:39 GMT
    expires
    Thu, 19 Nov 1981 08:52:00 GMT
    pragma
    no-cache
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    imail.znanium.com

    Domain Information

    znanium.com

    Domain Age
    15y 6m

    Created

    19.10.2010

    Expires

    19.10.2026

    Last Updated

    18.10.2025

    Registrar

    Regional Network Information Center, JSC dba RU-CENTER

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected

    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.
    C
    68/100
    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...
    Upgrade to view recommendations

    Typography & Readability

    Gotham Pro Bold + Gotham Pro Regular

    WCAG Partial
    64/100
    Readability
    /30
    26/30

    16px · LH 1.50

    Hierarchy
    /20
    13/20

    1.25x ratio · ✓ H1→H6

    WCAG
    /25
    15/25

    1:1 min contrast

    Performance
    /25
    10/25

    3 fonts · 7 req

    Heading Font

    Gotham Pro Bold

    Sans20px

    Body Font

    Gotham Pro Regular

    Sans16px

    Contrast Ratio

    1:1

    42 issues

    Reading Comfort

    ~51 CPL

    Optimal (45–75)
    20px
    h1
    26px
    h2
    20px
    h3
    20px
    h4
    16px
    p
    Minor Second
    Scale

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

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

    ✅ Optimal line length: ~51 chars/line (ideal 45–75 CPL).

    ⚠️ Partial contrast: 42 elements below WCAG AA threshold (min 1.0:1).

    ✅ 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.

    GGoogle FontsBuy on MyFonts

    Color Palette

    11 unique colors
    Light
    #ffffff
    Background· 35.8%
    #128be9
    Accent· 12.899999999999999%
    #166af1
    Accent· 9.5%
    #1aa7e1
    Accent· 8.6%
    #3c7cb9
    Primary· 7.7%
    #27cdc1
    Accent· 7.5%
    #e9eeee
    Border· 4.7%
    #5f9cdf
    Accent· 4.6%

    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

    30 Resources

    20
    Scripts
    10
    Styles
    2
    Async
    0
    Defer

    Top Script Sources

    local(18)mc.yandex.ru(1)vk.com(1)

    Website Identity

    znanium.com

    15 years old
    Location detected: 🇷🇺 Russiavia ip
    Regional Network Information Center, JSC dba RU-CENTERru-RU

    Social Profiles

    YouTubeTelegram

    Sponsored

    Last analyzed: 11 May 2026 at 10:17

    Historical Analysis & Change Tracking