dragons.jp

https://dragons.jp· First analyzed 15 May 2026· Updated 15 May 2026

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dragons.jp

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.113.111.45

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Server

Apache

Nameservers

ns-523.awsdns-01.net.ns-1275.awsdns-31.org.ns-1899.awsdns-45.co.uk.ns-397.awsdns-49.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.5 s10%

Speed Index

3.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

22.2 MB

250 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

11 Technologies Detected

CSS Frameworks

Tailwind CSS

Foundation

Icon Libraries

Font Awesome Material Icons

Analytics

Libraries

UI Components

Fonts

Tag Managers

Web Servers

SEO Analysis

D51/100

Meta Tags5/15

Content11/12

Headings3/8

Technical8/21

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

dragons.jpdragons.jp

中日ドラゴンズオフィシャルウェブサイト

中日ドラゴンズのオフィシャルウェブサイト。試合速報やチームデータ、チケット情報やイベント情報など。

Title Length20 chars

Recommended: 50-60 chars (~124px / 580px)

Description Length49 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

10 issues found

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Local SEO

Local Search Readiness

6/100

Poor

2 13 2

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

Sponsored

AI & LLM Readiness

F39/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

9/25

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:6%

Words:1,709

Token eff.:Optimal

Sections/1K:2.3

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.2w

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...

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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

10/20

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

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

4/15

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.

19/100

2.30 g

CO₂e / view

22.2 MB

Page Weight

Cleaner Than

New Visitor

2.62 g

Returning (cached)

1.31 g

Annual (10K/mo)

275.5 kg

Emission Segments

Data Center

113 mg

Network

675 mg

Device

1.51 g

Resource Breakdown

JavaScript

200.9 KB

Images

21.2 MB

CSS

706.4 KB

Fonts

921 B

HTML

134.9 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

176d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

09.10.2025

Valid Until

07.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.dragons.jpdragons.jp

SHA-256 Fingerprint

34:F1:23:1E:FE:A4:FC:28:23:3F:9A:4E:A4:8B:06:F8:CD:6F:2A:80...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

connection

keep-alive

content-type

text/html; charset=UTF-8

date

Fri, 15 May 2026 08:46:52 GMT

server

Apache/2

transfer-encoding

chunked

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

mx.dragons.jp

mtp.dragons.jp

mtc.dragons.jp

Domain Information

dragons.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.

51/100

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,minimum-scale=1, maximum-scale=1, user-scalable=yes

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

メイリオ

WCAG Partial

53/100

Readability

/30

23/30

16px · LH 1.80

Hierarchy

/20

7/20

WCAG

/25

12/25

1:1 min contrast

Performance

/25

11/25

1 font · 5 req

Heading Font

メイリオ

Sans

Body Font

メイリオ

Sans16px

Contrast Ratio

1:1

9 issues

Reading Comfort

Single Font Family

center aligned

30px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

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

GGoogle Fonts Buy on MyFontsFlesch 66

Color Palette

9 unique colors

6.34:1 AA Light

#ffffff

Background· 27.299999999999997%

#645d69

Other· 6.9%

#013b8f

Primary· 19.5%

#08152b

Accent· 9.5%

#8c9d87

Border· 9%

#1e457e

Accent· 8.4%

#202536

Secondary· 6.4%

#d4b29f

Secondary· 6.3%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)googletagmanager.com(2)ajax.googleapis.com(1)

Website Identity

dragons.jp

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 15 May 2026 at 08:47

Historical Analysis & Change Tracking

dragons.jp

中日ドラゴンズ オフィシャルウェブサイト

Accessibility

Carbon Footprint

Mobile Compatibility

Color Palette

dragons.jp

中日ドラゴンズオフィシャルウェブサイト