modernlib.net

https://modernlib.net· First analyzed 10 May 2026· Updated 10 May 2026

Export

modernlib.net

Mobile

Sponsored

Hosting Provider

Firstbyte Hosting

IP Address

45.9.73.94

Site Location

🇷🇺 Russiavia ip

Server Location

🇷🇺 Moscow, Russia

ASN

AS205090

Organization

Firstbyte Hosting

Server

Nginx

Nameservers

ns-usa.topdns.com.ns-uk.topdns.com.ns-canada.topdns.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

658 ms10%

Speed Index

855 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

663 KB

65 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Firstbyte Hosting

Technology Stack

4 Technologies Detected

Advertising

Google Ads Google AdSense

Web Servers

Nginxv1.20.2

Languages

PHPv5.4.16

SEO Analysis

D54/100

Meta Tags10/15

Content11/12

Headings6/8

Technical6/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

modernlib.netmodernlib.net

ModernLib.net - бесплатная электронная библиотека

Title Length49 chars

Recommended: 50-60 chars (~302px / 580px)

Description Length49 chars

Recommended: 120-160 chars

Issues (1)

• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

12 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

3 rules

Allows all crawlers

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

F37/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

Citation

6/25

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:21%

Words:985

Token eff.:Optimal

Sections/1K:4.1

Structured Data

No Schema

Citation Readiness

Opening Summary33w

Descriptive Headingsavg 2.8w

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.

67/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

9/15

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.

32/100

82 mg

CO₂e / view

663.5 KB

Page Weight

80%

Cleaner Than

New Visitor

94 mg

Returning (cached)

47 mg

Annual (10K/mo)

9.9 kg

Emission Segments

Data Center

18 mg

Network

20 mg

Device

44 mg

Resource Breakdown

JavaScript

367.7 KB

Images

248.9 KB

CSS

4.8 KB

HTML

23.4 KB

Other

18.6 KB

Green Hosting Not Verified

Firstbyte Hosting

6 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

36%Critical

Interactive

HTTPS

No WAF

42d

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/1.1

Valid From

24.03.2026

Valid Until

22.06.2026

Subject Alternative Names (2)

modernlib.netwww.modernlib.net

SHA-256 Fingerprint

F4:C6:58:F0:CC:A0:44:58:3F:73:1B:61:3D:28:9F:53:6D:4B:BC:F7...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

connection

keep-alive

content-language

content-type

text/html; charset=cp1251

date

Sun, 10 May 2026 08:49:05 GMT

server

nginx/1.20.2

strict-transport-security

max-age=31536000;

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

modernlib.net

Domain Age

14y 9m

Created

01.08.2011

Expires

01.08.2026

Last Updated

19.02.2026

Registrar

Internet Domain Service BS Corp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

31/100

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.

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

monotype corsiva + Verdana

WCAG Partial

60/100

Readability

/30

11/30

12px · LH 1.33

Hierarchy

/20

17/20

2x ratio

WCAG

/25

18/25

3.27:1 min contrast

Performance

/25

14/25

3 fonts · 1 req

Heading Font

monotype corsiva

Mono24px

Body Font

Verdana

Sans12px

Contrast Ratio

3.27:1

2 issues

Reading Comfort

Monospace Pairing

left aligned

24px

13px

15px

12px

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

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 3.3:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

Buy on MyFonts

Color Palette

6 unique colors

2.38:1 Fail Light

#ffffff

Background· 56.8%

#a2a9ae

Other· 6.3%

#dfefff

Primary· 19.1%

#6a5a57

Secondary· 4.4%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

7 Resources

Scripts

Styles

Async

Defer

Top Script Sources

pagead2.googlesyndication.com(2)yandex.ru(2)ads.digitalcaramel.com(1)yastatic.net(1)

Website Identity

modernlib.net

14 years old

Location detected: 🇷🇺 Russiavia ip

Internet Domain Service BS Corp

Sponsored

Last analyzed: 10 May 2026 at 08:49

Historical Analysis & Change Tracking