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arzamas.academy

https://arzamas.academy· First analyzed 27 Apr 2026· Updated 27 Apr 2026
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arzamas.academy
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Mobile

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Hosting Provider

Yandex.Cloud LLC

IP Address

89.169.182.246

Site Location

🇷🇺 Russiavia ip

Server Location

🇷🇺 Moscow, Russia

ASN

AS200350

Organization

Yandex.Cloud LLC

Server

OpenResty

Nameservers

ns3-l2.nic.ru.ns4-l2.nic.ru.ns8-l2.nic.ru.ns4-cloud.nic.ru.+1 more

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
196 KB
155 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Yandex.Cloud LLC

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Web Servers

1
OpenResty

SEO Analysis

D56/100
18
8
2
Meta Tags5/15
Content9/12
Headings1/8
Technical17/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile1/4
Indexability3/3
A
arzamas.academyarzamas.academy

Arzamas

История культуры в лекциях, подкастах и текстах

Title Length7 chars

Recommended: 50-60 chars (~46px / 580px)

Description Length47 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (64/90) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

32 rules

Sitemap reference found

Local SEO

Local Search Readiness

15/100
Poor
4 13

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.
1/25
Schema Data
7/25
Citation
8/25

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:7%
Words:6,748
Token eff.:Excessive
Depth:1/5

Structured Data

2 JSON-LD
Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
Upgrade to view recommendations

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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
56/100
9
Passed
4
Critical
2
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
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
11/15
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.
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.
54/100
A+
24 mg
CO₂e / view
196.0 KB
Page Weight
95%
Cleaner Than
New Visitor
28 mg
vs
Returning (cached)
14 mg
Annual (10K/mo)
2.9 kg
Emission Segments
Data Center
5 mg
Network
6 mg
Device
13 mg
Resource Breakdown
JavaScript
128.7 KB
Images
2.1 KB
HTML
65.2 KB
Green Hosting Not Verified
Yandex.Cloud LLC
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

47d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

15.03.2026

Valid Until

13.06.2026

Subject Alternative Names (4)

arzamas-academy.ruarzamas.academycors.arzamas.academygoosegoose.academy

SHA-256 Fingerprint

F5:A0:E1:10:09:A0:24:21:E0:E4:08:1E:99:32:A3:63:7A:06:68:88...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(public, no-cache)
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=utf-8
date
Mon, 27 Apr 2026 16:53:35 GMT
server
openresty
Good Warning Issue

Email Infrastructure

Yandex Mail

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mx.yandex.net

Domain Information

arzamas.academy

Domain Age
11y 8m

Created

24.08.2014

Expires

24.08.2026

Last Updated

28.08.2025

Registrar

Regional Network Information Center, JSC dba RU-CENTER

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked

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.
C
61/100
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.
Viewport
width=device-width, initial-scale=1.0
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Formular

WCAG Partial
52/100
Readability
/30
14/30

11px · LH 1.36

Hierarchy
/20
7/20
WCAG
/25
17/25

1:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Formular

Body Font

Formular

Sans11px

Contrast Ratio

1:1

12 issues

Reading Comfort

~57 CPL

Optimal (45–75)
11px
p

❌ Critical: 11px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.36). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~57 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.0:1).

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

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 54

Color Palette

11 unique colors
Dark
#464c40
Text· 6.7%
#13191c
Secondary· 25.9%
#ffffff
Primary· 0%
#080a0e
Background· 17.8%
#efdd36
Accent· 10.3%
#2b3e37
Secondary· 7.2%
#9f9a69
Secondary· 5.7%
#403229
Secondary· 5.6%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Social Media

1
Facebook SDKFree

Social widgets and sharing tools

2

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

9 Resources

8
Scripts
1
Styles
6
Async
1
Defer

Top Script Sources

top-fwz1.mail.ru(2)cdn-s-assets.arzamas.academy(2)cdn.jsdelivr.net(1)vk.com(1)accounts.google.com(1)

Website Identity

Arzamas

Arzamas

Organization

История культуры в лекциях, подкастах и текстах.

11 years old
Location detected: 🇷🇺 Russiavia ip
Regional Network Information Center, JSC dba RU-CENTER📧 Yandex Mailru-ru

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Last analyzed: 27 Apr 2026 at 16:54

Historical Analysis & Change Tracking