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kostyor.ru

https://kostyor.ru· First analyzed 19 May 2026· Updated 19 May 2026
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kostyor.ru
Desktop screenshot of kostyor.ru
Mobile screenshot of kostyor.ru
Mobile

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Hosting Provider

Selectel Ltd.

IP Address

92.53.65.149

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 St Petersburg, Russia

ASN

AS49505

Organization

Selectel Ltd.

Server

Nginx

Nameservers

dns4.fastdns24.link.dns.fastdns24.com.dns2.fastdns24.org.dns3.fastdns24.eu.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
424 ms10%
Speed Index
551 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1 MB
44 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Selectel Ltd.

Technology Stack

2 Technologies Detected

Libraries

1
jQueryv3.4.1

Web Servers

1
Nginx

SEO Analysis

D57/100
15
10
1
Meta Tags7/15
Content10/12
Headings6/8
Technical13/25
E-E-A-T3/7
Images2/7
Links4/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
K
kostyor.rukostyor.ru

Костер - образовательный портал. Рассказы для детей школьного возра...

Костер - портал для детей школьного возраста и их родителей. Читайте стихи и рассказы, познавательные статьи об истории, писателях, художниках, о Санкт-Петер...

Title truncated. Description truncated.
Title Length185 chars

Recommended: 50-60 chars (~1125px / 580px)

Description Length207 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (185 chars, ~1125px). Will be truncated in search results.

11 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

22 rules

Local SEO

Local Search Readiness

3/100
Poor
1 14 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.
11/25
Schema Data
0/25
Citation
5/25

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:25%
Words:791
Token eff.:Optimal
Sections/1K:6.3

Structured Data

No Schema

Citation Readiness

Opening Summary11w
Descriptive Headingsavg 2.4w
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...
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.
C
67/100
8
Passed
4
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
12/20
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
41/100
B
132 mg
CO₂e / view
1.0 MB
Page Weight
70%
Cleaner Than
New Visitor
151 mg
vs
Returning (cached)
75 mg
Annual (10K/mo)
15.8 kg
Emission Segments
Data Center
30 mg
Network
32 mg
Device
71 mg
Resource Breakdown
JavaScript
216.0 KB
Images
816.7 KB
CSS
4.7 KB
HTML
7.3 KB
Other
22.3 KB
Green Hosting Not Verified
Selectel Ltd.
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

68d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

27.04.2026

Valid Until

26.07.2026

Subject Alternative Names (4)

kostyor.rushop.kostyor.ruwww.kostyor.ruwww.shop.kostyor.ru

SHA-256 Fingerprint

89:E5:B6:13:DC:D7:B4:4B:20:63:8D:68:5F:2E:C3:71:26:ED:39:74...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Tue, 19 May 2026 06:32:16 GMT
server
nginx
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Yandex Mail

Score

45

SPF
DKIM
DMARC

MX Records (1)

mx.yandex.net

Domain Information

kostyor.ru

Domain Age
24y 4m

Created

12.01.2002

Expires

14.01.2027

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.
C
62/100
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
width=device-width, initial-scale=1
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Arial + sans-serif

WCAG Partial
65/100
Readability
/30
22/30

18px · LH --

Hierarchy
/20
6/20

1.33x ratio

WCAG
/25
17/25

2.1:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Arial

Sans24px

Body Font

sans-serif

Sans18px

Contrast Ratio

2.1:1

11 issues

Reading Comfort

~33 CPL

Narrow lines
24px
h1
22px
h2
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 2.1:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

8 unique colors
3.98:1 AA Large Light
#ffffff
Background· 76.1%
#7f8170
Other· 2.4%
#dbf5f2
Primary· 5.6%
#eae4c2
Secondary· 5.3%
#bdd2cd
Secondary· 3.5%
#73af91
Secondary· 3.3%
#cead73
Secondary· 2.4%

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

9 Resources

7
Scripts
2
Styles
5
Async
0
Defer

Top Script Sources

an.yandex.ru(3)mc.yandex.ru(1)ajax.googleapis.com(1)local(1)yastatic.net(1)

Website Identity

kostyor.ru

24 years old
Location detected: 🇷🇺 Russiavia tld
RU-CENTER-RU📧 Yandex Mailru

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Last analyzed: 19 May 2026 at 06:32

Historical Analysis & Change Tracking