cuso-edu.ru

https://cuso-edu.ru· First analyzed 20 May 2026· Updated 20 May 2026

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cuso-edu.ru

Mobile

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Hosting Provider

Varnoff Ltd

IP Address

195.62.70.8

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Samara, Russia

ASN

AS47257

Organization

Varnoff Ltd

Server

Apache

Nameservers

ns25.varnoff.net.ns15.varnoff.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

583 ms10%

Speed Index

758 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.2 MB

53 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Varnoff Ltd

Technology Stack

5 Technologies Detected

CSS Frameworks

Icon Libraries

Web Servers

Customer Support

SEO Analysis

D43/100

Meta Tags9/15

Content12/12

Headings0/8

Technical4/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

cuso-edu.rucuso-edu.ru

Центральное Управление Министерства Образования Самарской области

No description available for this page.

Title Length65 chars

Recommended: 50-60 chars (~403px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (4)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (40/40) — critical for accessibility and SEO

13 issues found

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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.

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AI & LLM Readiness

F36/100

Bot Access

20/25

Machine Read.

10/25

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:26%

Words:1,182

Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary98w

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 (11)

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.

40/100

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

7/15

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.

36/100

148 mg

CO₂e / view

1.2 MB

Page Weight

70%

Cleaner Than

New Visitor

169 mg

Returning (cached)

84 mg

Annual (10K/mo)

17.7 kg

Emission Segments

Data Center

33 mg

Network

35 mg

Device

79 mg

Resource Breakdown

JavaScript

10.2 KB

Images

1.1 MB

CSS

91.0 KB

HTML

8.7 KB

Green Hosting Not Verified

Varnoff Ltd

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

84d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

14.05.2026

Valid Until

12.08.2026

Subject Alternative Names (2)

cuso-edu.ruwww.cuso-edu.ru

SHA-256 Fingerprint

7F:53:66:9C:F9:09:29:0D:FD:B0:78:A8:19:E7:F7:EB:F2:3B:06:7F...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

8621

content-type

text/html; charset=WINDOWS-1251

date

Wed, 20 May 2026 02:45:18 GMT

keep-alive

timeout=5, max=100

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mail.cuso-edu.ru

Domain Information

cuso-edu.ru

Domain Age

17 years

Created

26.04.2009

Expires

26.04.2027

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.

34/100

Not 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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Tahoma

WCAG Partial

55/100

Readability

/30

19/30

16px · LH --

Hierarchy

/20

6/20

WCAG

/25

17/25

3.95:1 min contrast

Performance

/25

13/25

1 font · 3 req

Heading Font

Tahoma

Body Font

Tahoma

Sans16px

Contrast Ratio

3.95:1

9 issues

Reading Comfort

~107 CPL

Too wide

16px

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

❌ Very long lines: ~107 chars/line causes eye strain. Add max-width constraint.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 4.0:1).

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

✅ 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

8 unique colors

2.14:1 Fail Light

#eeeeee

Background· 61.699999999999996%

#a4a3b2

Secondary· 8.6%

#527fb1

Primary· 5.9%

#b0c6d7

Secondary· 5.8%

#3e6298

Secondary· 4.4%

#fdfdfc

Secondary· 4.4%

#6a9cc1

Secondary· 4.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.jsdelivr.net(1)local(1)pos.gosuslugi.ru(1)vk.com(1)

Website Identity

cuso-edu.ru

17 years old

Location detected: 🇷🇺 Russiavia tld

RU-CENTER-RU

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Last analyzed: 20 May 2026 at 02:45

Historical Analysis & Change Tracking