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openedu.ru

https://openedu.ru· First analyzed 03 May 2026· Updated 03 May 2026
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openedu.ru
Desktop screenshot of openedu.ru
Mobile screenshot of openedu.ru
Mobile

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Hosting Provider

"HLL" LLC

IP Address

178.248.235.109

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Moscow, Russia

ASN

AS51115

Server

QRATOR

Nameservers

a.ns.selectel.ru.b.ns.selectel.ru.c.ns.selectel.ru.d.ns.selectel.ru.

Performance

83

Core Web Vitals

Weight

First Contentful Paint
2.0 s10%
Speed Index
2.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
161 KB
108 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Infrastructure
Hosting
"HLL" LLC

Technology Stack

3 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Security

1
reCAPTCHA

SEO Analysis

D55/100
15
10
1
Meta Tags5/15
Content10/12
Headings5/8
Technical11/21
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
O
openedu.ruopenedu.ru

Open Education - Main page

Free online courses from leading Russian universities

Title Length26 chars

Recommended: 50-60 chars (~162px / 580px)

Description Length53 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (36/66) — critical for accessibility and SEO

11 issues found

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Local SEO

Local Search Readiness

7/100
Poor
3 13 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

D45/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
0/25
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
navheader/footer
Text ratio:2%
Words:496
Token eff.:Optimal
Sections/1K:6
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary33w
Descriptive Headingsavg 5.7w
Canonical URL
Open Graph2/3
Twitter Card3/3
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.
C
69/100
8
Passed
3
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
0/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
3 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.
70/100
A+
20 mg
CO₂e / view
160.9 KB
Page Weight
95%
Cleaner Than
New Visitor
23 mg
vs
Returning (cached)
11 mg
Annual (10K/mo)
2.4 kg
Emission Segments
Data Center
4 mg
Network
5 mg
Device
11 mg
Resource Breakdown
JavaScript
85.4 KB
Images
1.0 KB
HTML
36.8 KB
Other
37.6 KB
Green Hosting Not Verified
"HLL" LLC
3 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

51%Poor
Interactive

HTTPS

No WAF

57d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1+H3

Valid From

31.03.2026

Valid Until

29.06.2026

Subject Alternative Names (1)

openedu.ru

SHA-256 Fingerprint

7E:D0:CE:49:8A:B9:00:5A:BA:E5:BD:04:29:9B:74:F1:2E:19:40:F4...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection
keep-alive
content-type
text/html; charset=utf-8
date
Sun, 03 May 2026 02:29:39 GMT
keep-alive
timeout=15
server
QRATOR
transfer-encoding
chunked
Good Warning Issue

Email Infrastructure

Yandex Mail

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mx.yandex.net

Domain Information

openedu.ru

Domain Age
25y 6m

Created

08.11.2000

Expires

10.11.2026

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.
B
72/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

PFBeauSansPro

WCAG Partial
71/100
Readability
/30
23/30

16px · LH 1.38

Hierarchy
/20
15/20

4x ratio

WCAG
/25
17/25

1.05:1 min contrast

Performance
/25
16/25

1 font

Heading Font

PFBeauSansPro

Sans64px

Body Font

PFBeauSansPro

Sans16px

Contrast Ratio

1.05:1

14 issues

Reading Comfort

~42 CPL

Narrow lines
64px
h1
32px
h2
16px
p

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

⚠️ Tight line spacing (1.38). Increase to 1.4–1.6 for better readability.

❌ Very complex text: Flesch score 25/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 14 elements below WCAG AA threshold (min 1.1:1).

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

✅ Strong hierarchy: Headlines are 4.0x larger than body text.

Buy on MyFontsFlesch 25

Color Palette

6 unique colors
5.07:1 AA Light
#ffffff
Text· 13.9%
#6f6d7a
Other· 10%
#193a4d
Primary· 36.3%
#e6ebef
Background· 26.9%
#b6c4ca
Secondary· 6.8%
#2c4960
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

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Scripts & Styles

26 Resources

20
Scripts
6
Styles
17
Async
0
Defer

Top Script Sources

cdn.openedu.ru(19)mc.yandex.ru(1)

Website Identity

openedu.ru

25 years old
Location detected: 🇷🇺 Russiavia tld
RU-CENTER-RU📧 Yandex Mailen

Social Profiles

Telegram

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Last analyzed: 03 May 2026 at 02:30

Historical Analysis & Change Tracking

openedu.ru Technology Stack - Built With Next.js, Tailwind CSS, reCAPTCHA | StackOptic | StackOptic