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universarium.org

https://universarium.org· First analyzed 16 May 2026· Updated 16 May 2026
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universarium.org
Desktop screenshot of universarium.org
Mobile screenshot of universarium.org
Mobile

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Hosting Provider

JSC Selectel

IP Address

195.43.94.146

Site Location

🇷🇺 Russiavia phone

Server Location

🇷🇺 St Petersburg, Russia

ASN

AS49505

Server

Nginx

Nameservers

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

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.6 MB
24 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
JSC Selectel

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginxv1.21.6

SEO Analysis

D46/100
11
11
2
Meta Tags4/15
Content10/12
Headings6/8
Technical9/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
U
universarium.orguniversarium.org

Главная | Универсариум

No description available for this page.

Title Length22 chars

Recommended: 50-60 chars (~134px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (10/13) — critical for accessibility and SEO

13 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

Local SEO

Local Search Readiness

9/100
Poor
3 12 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

D48/100
Bot Access
20/25
Machine Read.
16/25
Schema Data
0/25
Citation
12/25

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.txtinvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:2%
Words:563
Token eff.:Optimal
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary74w
Descriptive Headingsavg 8.8w
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.
D
48/100
9
Passed
7
Critical
1
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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
12/15
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
8/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
14/100
F
585 mg
CO₂e / view
4.6 MB
Page Weight
15%
Cleaner Than
New Visitor
669 mg
vs
Returning (cached)
335 mg
Annual (10K/mo)
70.2 kg
Emission Segments
Data Center
131 mg
Network
141 mg
Device
314 mg
Resource Breakdown
JavaScript
3.6 MB
Images
354.5 KB
CSS
667.0 KB
HTML
2.2 KB
Green Hosting Not Verified
JSC Selectel
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

66d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.04.2026

Valid Until

21.07.2026

Subject Alternative Names (2)

universarium.orgwww.universarium.org

SHA-256 Fingerprint

B7:D1:C2:5E:79:8D:5F:4A:C1:A1:31:BD:35:9E:AE:D6:CD:EB:43:5D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
content-length
1946
content-type
text/html
date
Sat, 16 May 2026 03:52:24 GMT
etag
"69bbb8a8-79a"
last-modified
Thu, 19 Mar 2026 08:49:44 GMT
Good Warning Issue

Email Infrastructure

Yandex Mail

Score

70

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mx.yandex.ru

Domain Information

universarium.org

Domain Age
13y 1m

Created

23.03.2013

Expires

23.03.2027

Last Updated

24.03.2026

Registrar

Regional Network Information Center, JSC dba RU-CENTER

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
71/100
Mobile Friendly9 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,shrink-to-fit=no
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Rothek + Inter

WCAG Partial
73/100
Readability
/30
25/30

20px · LH 1.35

Hierarchy
/20
16/20

3.2x ratio

WCAG
/25
17/25

1.95:1 min contrast

Performance
/25
15/25

2 fonts · 3 req

Heading Font

Rothek

Sans64px

Body Font

Inter

Sans20px

Contrast Ratio

1.95:1

11 issues

Reading Comfort

~34 CPL

Narrow lines
64px
h1
48px
h2
36px
h3
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

⚠️ Tight line spacing (1.35). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.9:1).

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

✅ Strong hierarchy: Headlines are 3.2x larger than body text.

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

Buy on MyFonts

Color Palette

6 unique colors
Light
#ffffff
Background· 91.2%
#ba916b
Primary· 3%
#b5c7e0
Secondary· 2.1%
#603436
Secondary· 1.8%
#eed6c3
Accent· 1.1%

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

5 Resources

3
Scripts
2
Styles
1
Async
0
Defer

Top Script Sources

local(2)mc.yandex.ru(1)

Website Identity

universarium.org

info@edu-oko.ru
+7 (495) 720-55-84
13 years old
Location detected: 🇷🇺 Russiavia phone
Regional Network Information Center, JSC dba RU-CENTER📧 Yandex Mail

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Last analyzed: 16 May 2026 at 03:52

Historical Analysis & Change Tracking