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sejf-2-klassa.ru

https://sejf-2-klassa.ru· First analyzed 15 May 2026· Updated 15 May 2026
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sejf-2-klassa.ru
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Mobile

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Hosting Provider

cloudflare.com

IP Address

104.21.84.137

Site Location

🇷🇺 Russiavia phone

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

nucum.ns.cloudflare.com.ivan.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
540 ms10%
Speed Index
702 ms10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
705 KB
92 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Libraries

1

CSS Frameworks

1

Web Servers

1

Languages

1

SEO Analysis

C67/100
21
6
1
Meta Tags8/15
Content10/12
Headings6/8
Technical22/25
E-E-A-T0/7
Images4/7
Links3/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
S
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Title truncated. Description truncated.
Title Length107 chars

Recommended: 50-60 chars (~663px / 580px)

Description Length172 chars

Recommended: 120-160 chars

Issues (1)

  • Title is too long (107 chars, ~663px). Will be truncated in search results.

Crawlability

Sitemap

Type: index

16 URLs

16 sub-sitemaps

robots.txt

321 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

22/100
Needs Work
6 10 2

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AI & LLM Readiness

D48/100
Bot Access
20/25
Machine Read.
17/25
Schema Data
0/25
Citation
11/25

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
Text ratio:3%
Words:2,298
Token eff.:Optimal

Structured Data

Microdata

Citation Readiness

Opening Summary10w
Descriptive Headings
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
62/100
9
Passed
3
Critical
2
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
5/15
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
5/15
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...

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.
76/100
A
71 mg
CO₂e / view
704.8 KB
Page Weight
80%
Cleaner Than
New Visitor
81 mg
vs
Returning (cached)
41 mg
Annual (10K/mo)
8.5 kg
Emission Segments
Data Center
4 mg
Network
21 mg
Device
47 mg
Resource Breakdown
JavaScript
442.8 KB
Images
147.0 KB
CSS
61.6 KB
Fonts
1.3 KB
HTML
46.0 KB
Other
6.1 KB
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

64d

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/2

Valid From

20.04.2026

Valid Until

19.07.2026

Subject Alternative Names (10)

2.mirseifov.rudev.mirseifov.rukazan.mirseifov.rumirseifov.ruspb.mirseifov.ruwww.2.mirseifov.ruwww.dev.mirseifov.ruwww.kazan.mirseifov.ru+2 more

SHA-256 Fingerprint

82:1C:D3:03:B8:1B:B3:C8:CA:3C:B4:5E:35:F3:17:0E:12:4C:A8:FE...

Top Recommendations

Security recommendation preview

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
Fri, 15 May 2026 17:55:31 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
pragma
no-cache
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

sejf-2-klassa.ru

Domain Age
1y 7m

Created

19.09.2024

Expires

19.09.2026

Registrar

REGRU-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
76/100
Mobile Friendly3 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
initial-scale=1.0, width=device-width
1 recommendation
  • Mobile compatibility recommendation preview...

Typography & Readability

Montserrat

WCAG Partial
69/100
Readability
/30
16/30

12px · LH 1.40

Hierarchy
/20
20/20

2.5x ratio · ✓ H1→H6

WCAG
/25
13/25

2.86:1 min contrast

Performance
/25
20/25

1 font · 1 req

Heading Font

Montserrat

Sans30px

Body Font

Montserrat

Sans12px

Contrast Ratio

2.86:1

3 issues

Reading Comfort

Single Font Family

left aligned
30px
h1
12px
p

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 2.9:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

Color Palette

5 unique colors
7.24:1 AAA Light
#ffffff
Background· 32.3%
#5b5653
Other· 13.8%
#000000
Primary· 0%
#f1f0f3
Background· 15.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

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

30 Resources

20
Scripts
10
Styles
1
Async
0
Defer

Top Script Sources

local(19)mc.yandex.ru(1)

Website Identity

sejf-2-klassa.ru

+74951981066
1 year old
Location detected: 🇷🇺 Russiavia phone
REGRU-RUru

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Last analyzed: 15 May 2026 at 17:55

Historical Analysis & Change Tracking