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nlr.ru

https://nlr.ru· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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nlr.ru
Desktop screenshot of nlr.ru
Mobile screenshot of nlr.ru
Mobile

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Hosting Provider

NLR Office LAN

IP Address

45.155.105.30

Site Location

🇷🇺 Russiavia phone

Server Location

🇷🇺 Moscow, Russia

ASN

AS208178

Organization

NLR Office LAN

Server

Apache

Nameservers

ns1.segmenta.ru.ns.runnet.ru.ns.nlr.ru.

Performance

73

Core Web Vitals

Weight

First Contentful Paint
12.0 s10%
Speed Index
15.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.5 MB
63 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
NLR Office LAN

Technology Stack

4 Technologies Detected

CSS Frameworks

3
Bootstrapv5.3.3
Tailwind CSS
Normalize.css

Web Servers

1
Apache

SEO Analysis

C64/100
17
10
0
Meta Tags11/15
Content10/12
Headings7/8
Technical14/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nlr.runlr.ru

Российская национальная библиотека, Санкт-Петербург

Официальный сайт Российской национальной библиотеки (Санкт-Петербург)

Title Length51 chars

Recommended: 50-60 chars (~314px / 580px)

Description Length69 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    19,686 URLs

    robots.txt

    190 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    16/100
    Poor
    5 11 2

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

    Sponsored

    AI & LLM Readiness

    F22/100
    Bot Access
    3/25
    Machine Read.
    11/25
    Schema Data
    0/25
    Citation
    8/25

    AI Bot Access

    0/14 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
    navheader/footer
    Text ratio:6%
    Words:364
    Token eff.:Optimal
    Sections/1K:8.2
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary16w
    Descriptive Headingsavg 1.3w
    Canonical URL
    Open Graph0/3
    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.
    C
    63/100
    8
    Passed
    4
    Critical
    1
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    5/15
    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
    7/15
    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.
    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.
    4/100
    F
    573 mg
    CO₂e / view
    4.5 MB
    Page Weight
    15%
    Cleaner Than
    New Visitor
    655 mg
    vs
    Returning (cached)
    327 mg
    Annual (10K/mo)
    68.8 kg
    Emission Segments
    Data Center
    128 mg
    Network
    138 mg
    Device
    308 mg
    Resource Breakdown
    JavaScript
    114.9 KB
    Images
    3.3 MB
    CSS
    1.0 MB
    HTML
    48.6 KB
    Green Hosting Not Verified
    NLR Office LAN
    9 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    31%Critical
    Interactive

    HTTPS

    No WAF

    226d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    GlobalSign nv-sa

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    06.11.2025

    Valid Until

    08.12.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.nlr.runlr.ru

    SHA-256 Fingerprint

    BD:AA:BA:AC:6E:56:D7:B8:FC:39:A0:6F:94:3E:2E:ED:DC:B3:73:FA...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    content-type
    text/html; charset=UTF-8
    date
    Sat, 25 Apr 2026 23:34:38 GMT
    server
    Apache
    transfer-encoding
    chunked
    x-content-type-options
    nosniff
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (1)

    m.nlr.ru

    Domain Information

    nlr.ru

    Domain Age
    28y 7m

    Created

    30.09.1997

    Expires

    30.09.2026

    Registrar

    RU-CENTER-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.
    D
    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, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0
    3 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Golos-text-Bold + Golos-text-Reg

    WCAG AA
    70/100
    Readability
    /30
    24/30

    16px · LH 1.50

    Hierarchy
    /20
    14/20

    2x ratio

    WCAG
    /25
    17/25

    5.59:1 min contrast

    Performance
    /25
    15/25

    2 fonts · 2 req

    Heading Font

    Golos-text-Bold

    Sans32px

    Body Font

    Golos-text-Reg

    Sans16px

    Contrast Ratio

    5.59:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~37 CPL

    Narrow lines
    32px
    h1
    40px
    h2
    16px
    p

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

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

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.6:1).

    ❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

    ✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

    Buy on MyFonts

    Color Palette

    13 unique colors
    Dark
    #6e666c
    Other· 5.1%
    #b92531
    Accent· 26.7%
    #d3b785
    Secondary· 10%
    #3a7696
    Secondary· 8.9%
    #952125
    Primary· 7.9%
    #cd6b48
    Accent· 6.8%
    #273c48
    Secondary· 6.5%
    #32627e
    Secondary· 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

    9 Resources

    6
    Scripts
    3
    Styles
    2
    Async
    0
    Defer

    Top Script Sources

    local(3)mc.yandex.com(1)mc.yandex.ru(1)culturaltracking.ru(1)

    Website Identity

    nlr.ru

    ref.service@nlr.ru&cc=office@nlr.ru
    +78001000196
    28 years old
    Location detected: 🇷🇺 Russiavia phone
    RU-CENTER-RUru

    Social Profiles

    Telegram

    Sponsored

    Last analyzed: 25 Apr 2026 at 23:35

    Historical Analysis & Change Tracking