kobayashi-kyo-ballet.com

https://kobayashi-kyo-ballet.com· First analyzed 19 May 2026· Updated 19 May 2026

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Hosting Provider

SAKURA

IP Address

112.78.112.69

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Osaka, Japan

ASN

AS9371

Organization

SAKURA

Server

Nginx

Nameservers

ns2.dns.ne.jp.ns1.dns.ne.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

642 KB

25 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

SAKURA

Technology Stack

3 Technologies Detected

Libraries

jQueryv1.3.2

Analytics

Google Analytics

Web Servers

Nginx

SEO Analysis

F34/100

Meta Tags5/15

Content0/12

Headings6/8

Technical5/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

kobayashi-kyo-ballet.comkobayashi-kyo-ballet.com

小林恭バレエ団

小林恭バレエ団公式WEBサイトです。新規生徒募集中！東京都北区、十条、王子。栃木県野木。子どもクラス、大人クラス

Title Length7 chars

Recommended: 50-60 chars (~43px / 580px)

Description Length57 chars

Recommended: 120-160 chars

Issues (3)

• Very thin content (18 words). Search engines need substantial content for ranking.
• Most images missing alt text (7/8) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

13 issues found

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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.

Sponsored

AI & LLM Readiness

F25/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

1/25

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:2%

Words:17

Token eff.:Too Short

Sections/1K:60

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

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Sponsored

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.

69/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

9/20

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

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...

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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.

37/100

79 mg

CO₂e / view

642.2 KB

Page Weight

80%

Cleaner Than

New Visitor

91 mg

Returning (cached)

45 mg

Annual (10K/mo)

9.5 kg

Emission Segments

Data Center

18 mg

Network

19 mg

Device

43 mg

Resource Breakdown

Images

445.4 KB

CSS

186.7 KB

HTML

10.2 KB

Green Hosting Not Verified

SAKURA

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

62d

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

22.04.2026

Valid Until

21.07.2026

Subject Alternative Names (2)

kobayashi-kyo-ballet.comwww.kobayashi-kyo-ballet.com

SHA-256 Fingerprint

17:31:E1:E1:A2:B3:EF:18:5F:30:C2:D3:FD:F9:4F:B5:FF:3C:E7:49...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-length

10131

content-type

text/html

date

Tue, 19 May 2026 11:29:28 GMT

etag

"2793-612e81cfca3d2"

last-modified

Tue, 05 Mar 2024 11:26:28 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

kobayashi-kyo-ballet.com

Domain Information

kobayashi-kyo-ballet.com

Domain Age

24y 11m

Created

31.05.2001

Expires

31.05.2026

Last Updated

10.03.2025

Registrar

Japan Registry Services Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

30/100

Not 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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

trebuchet ms

WCAG AA

62/100

Readability

/30

13/30

12px · LH --

Hierarchy

/20

14/20

2x ratio

WCAG

/25

21/25

6.25:1 min contrast

Performance

/25

14/25

1 font

Heading Font

trebuchet ms

Sans24px

Body Font

trebuchet ms

Sans12px

Contrast Ratio

6.25:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Font Family

left aligned

24px

12px

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.2:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

6 unique colors

Dark

#000000

Background· 79.4%

#17130e

Primary· 8.200000000000001%

#352910

Accent· 5%

#625e3a

Secondary· 2.9%

#3c402e

Secondary· 2.9%

#93906f

Secondary· 1.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

ajax.googleapis.com(1)ssl.google-analytics.com(1)

Website Identity