red-hot.ne.jp

https://red-hot.ne.jp· First analyzed 13 May 2026· Updated 13 May 2026

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red-hot.ne.jp

Mobile

Sponsored

Hosting Provider

KAGOYA JAPAN Inc.

IP Address

133.18.78.79

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS24282

Server

Nginx

Nameservers

ns1.kagoya.net.ns0.kagoya.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

955 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.8 MB

62 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

KAGOYA JAPAN Inc.

Technology Stack

8 Technologies Detected

Analytics

Libraries

UI Components

Other

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

C63/100

Meta Tags13/15

Content11/12

Headings1/8

Technical16/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

red-hot.ne.jpred-hot.ne.jp

HOT STUFF PROMOTION（ホットスタッフ・プロモーション）- ライブ・コンサート情報、チケット販売情報、当日券情報

HOT STUFF PROMOTION（ホットスタッフ・プロモーション）は、首都圏で行われるライブ・コンサートの企画・制作・運営を行う会社です。弊社が取り扱うライブ・コンサートのチケット販売情報、当日券情報をご案内しています。

Title Length64 chars

Recommended: 50-60 chars (~408px / 580px)

Description Length113 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (22/36) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

41 rules

Local SEO

Local Search Readiness

15/100

Poor

4 11 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F22/100

Bot Access

3/25

Machine Read.

8/25

Schema Data

0/25

Citation

11/25

AI Bot Access

0/14 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

navheader/footer

Text ratio:8%

Words:815

Token eff.:Optimal

Sections/1K:6.1

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 2.6w

Canonical URL

Open Graph3/3

Twitter Card1/3

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.

66/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

13/20

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

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

9/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 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.

16/100

476 mg

CO₂e / view

3.8 MB

Page Weight

15%

Cleaner Than

New Visitor

544 mg

Returning (cached)

272 mg

Annual (10K/mo)

57.1 kg

Emission Segments

Data Center

106 mg

Network

114 mg

Device

256 mg

Resource Breakdown

JavaScript

68.8 KB

Images

3.4 MB

CSS

307.4 KB

HTML

13.3 KB

Green Hosting Not Verified

KAGOYA JAPAN Inc.

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

119d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Cybertrust Japan Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

29.08.2025

Valid Until

10.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.red-hot.ne.jpred-hot.ne.jp

SHA-256 Fingerprint

E4:E1:D3:C1:8A:F6:16:5D:5D:DC:0B:DA:72:00:E8:FC:54:8B:71:A2...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-encoding

📦 Gzip(gzip)

content-length

13360

content-type

text/html

date

Wed, 13 May 2026 22:39:31 GMT

etag

"11101-651ba88de7e7d-gzip"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

dmail.kagoya.net

Domain Information

red-hot.ne.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

52/100

Mobile Friendly1 breakpoint

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,minimum-scale=1.0

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

fontello

WCAG Partial

43/100

Readability

/30

10/30

13px · LH 1.00

Hierarchy

/20

6/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

13/25

2 fonts · 3 req

Heading Font

fontello

Sans

Body Font

fontello

Sans13px

Contrast Ratio

1:1

30 issues

Reading Comfort

Single Font Family

left aligned

22px

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.00). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 47/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 30 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: 2 font families keeps load times fast.

Buy on MyFontsFlesch 47

Color Palette

13 unique colors

15.07:1 AAA Dark

#242627

Other· 15.3%

#fefefe

Text· 7.4%

#3b3f6b

Primary· 12.6%

#6c837e

Border· 7.5%

#333048

Secondary· 3.3%

#3e4e57

Secondary· 2.9%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)googletagmanager.com(2)ajax.googleapis.com(1)cdnjs.cloudflare.com(1)

Website Identity

red-hot.ne.jp

05052116077

Location detected: 🇯🇵 Japanvia tld

Social Profiles

X (Twitter)Instagram

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Last analyzed: 13 May 2026 at 22:40

Historical Analysis & Change Tracking