lihachev.ru

https://lihachev.ru· First analyzed 31 May 2026· Updated 31 May 2026

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lihachev.ru

Mobile

Sponsored

Hosting Provider

JSC PeterStar

IP Address

195.144.251.22

Site Location

🇷🇺 Russiavia phone

Server Location

🇷🇺 St Petersburg, Russia

ASN

AS20632

Organization

JSC PeterStar

Server

Nginx

Nameservers

dns2.yandex.net.dns1.yandex.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.6 s10%

Speed Index

2.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3 MB

150 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

JSC PeterStar

Technology Stack

7 Technologies Detected

UI Components

Slick Carousel Fancybox

CSS Frameworks

Libraries

Icon Libraries

Web Servers

SEO Analysis

D57/100

Meta Tags8/15

Content12/12

Headings6/8

Technical15/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

lihachev.rulihachev.ru

Площадь Лихачева

Научный портал о наследии Дмитрия Сергеевича Лихачева, истории русского языка и российской культуре.

Title Length16 chars

Recommended: 50-60 chars (~99px / 580px)

Description Length101 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (92/100) — critical for accessibility and SEO

10 issues found

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Crawlability

Sitemap

Type: standard

5,169 URLs

robots.txt

72 rules

Sitemap reference found

Local SEO

Local Search Readiness

11/100

Poor

3 13 2

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

Sponsored

AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

0/25

Citation

9/25

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

nav

Text ratio:15%

Words:2,787

Token eff.:Optimal

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary20w

Descriptive Headingsavg 4.2w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

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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.

70/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

14/15

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.

4 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.

26/100

379 mg

CO₂e / view

3.0 MB

Page Weight

30%

Cleaner Than

New Visitor

433 mg

Returning (cached)

217 mg

Annual (10K/mo)

45.5 kg

Emission Segments

Data Center

85 mg

Network

91 mg

Device

203 mg

Resource Breakdown

JavaScript

464.1 KB

Images

1.6 MB

CSS

848.8 KB

HTML

27.0 KB

Other

97.7 KB

Green Hosting Not Verified

JSC PeterStar

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%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/2

Valid From

14.04.2026

Valid Until

13.07.2026

Subject Alternative Names (2)

lihachev.ruwww.lihachev.ru

SHA-256 Fingerprint

D4:19:1F:38:56:B3:A7:7A:47:19:CA:ED:82:83:24:3A:2E:27:78:AE...

Top Recommendations

Security recommendation preview

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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

Sun, 31 May 2026 08:40:22 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

p3p

policyref="/bitrix/p3p.xml", CP="NON DSP COR CUR ADM DEV PSA...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.gup.ru

Domain Information

lihachev.ru

Domain Age

20y 9m

Created

22.08.2005

Expires

22.08.2026

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.

67/100

Mobile Friendly21 breakpoints

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Merriweather + SFProDisplay

WCAG Partial

69/100

Readability

/30

26/30

23px · LH 1.30

Hierarchy

/20

9/20

1.83x ratio

WCAG

/25

16/25

3.19:1 min contrast

Performance

/25

18/25

2 fonts · 6 req

Heading Font

Merriweather

Serif42px

Body Font

SFProDisplay

Sans23px

Contrast Ratio

3.19:1

1 issue

Reading Comfort

~37 CPL

Narrow lines

42px

52px

23px

Major Third

Scale

✅ Excellent readability: 23px body text is ideal for all devices.

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 3.2:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 2 font families keeps load times fast.

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

Buy on MyFontsFlesch 67

Color Palette

14 unique colors

3.91:1 AA Large Light

#fafaf9

Secondary· 13.2%

#757f86

Other· 2.1%

#1383c5

Primary· 14.2%

#b88871

Secondary· 9%

#553b42

Secondary· 7.9%

#b5c2d1

Secondary· 6.9%

#2c1f28

Secondary· 6.9%

#c4d2df

Secondary· 6.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(18)mc.yandex.ru(1)bitrix.info(1)

Website Identity

lihachev.ru

+78122695758

20 years old

Location detected: 🇷🇺 Russiavia phone

RU-CENTER-RUru

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Last analyzed: 31 May 2026 at 08:40

Historical Analysis & Change Tracking