countdownjapan.jp

https://countdownjapan.jp· First analyzed 31 May 2026· Updated 31 May 2026

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countdownjapan.jp

Mobile

Sponsored

Hosting Provider

Akamai Technologies

IP Address

2.16.238.7

Site Location

🇯🇵 Japanvia tld

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS20940

Server

Apache

CDN

Varnish

Nameservers

a2-65.akam.net.a26-66.akam.net.a9-67.akam.net.a1-244.akam.net.+2 more

Performance

Core Web Vitals

Weight

First Contentful Paint

2.2 s10%

Speed Index

2.9 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

281 KB

82 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

cdj2526Custom

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

6 Technologies Detected

Analytics

CSS Frameworks

Fonts

Tag Managers

Web Servers

SEO Analysis

C64/100

Meta Tags5/15

Content8/12

Headings3/8

Technical23/25

E-E-A-T2/7

Images1/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

countdownjapan.jpcountdownjapan.jp

COUNTDOWN JAPAN 25/26

国内最大の年越しフェス、12月27日・28日・29日・30日・31日、幕張メッセにて開催！

Title Length21 chars

Recommended: 50-60 chars (~138px / 580px)

Description Length45 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (55/83) — critical for accessibility and SEO

7 issues found

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Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

27 rules

Sitemap reference found

Local SEO

Local Search Readiness

14/100

Poor

4 13

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

D47/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

6/25

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

nav

Text ratio:2%

Words:165

Token eff.:Too Short

Sections/1K:163.6

Depth:1/5

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbList

Citation Readiness

Opening Summary239w

Descriptive Headingsavg 1.6w

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.

72/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

Semantic Structure

17/20

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

11/15

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.

3 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.

71/100

A+

28 mg

CO₂e / view

280.8 KB

Page Weight

90%

Cleaner Than

New Visitor

32 mg

Returning (cached)

16 mg

Annual (10K/mo)

3.4 kg

Emission Segments

Data Center

1 mg

Network

8 mg

Device

19 mg

Resource Breakdown

JavaScript

67.0 KB

Images

49.2 KB

CSS

148.8 KB

HTML

15.8 KB

Green Hosting Verified

Akamai Technologies

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

218d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.01.2026

Valid Until

04.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (17)

rockinon.co.jpcountdownjapan.jphitachinaka-rijfes.jpjapanjam.jpjapanonlinefes.jpjapansnext.jplukirock.commanpaku.jp+9 more

SHA-256 Fingerprint

F6:34:0A:A8:5F:D7:F4:41:02:57:79:74:30:6D:FC:37:63:92:B9:6B...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

content-encoding

📦 Gzip(gzip)

content-length

15902

content-type

text/html; charset=UTF-8

date

Sun, 31 May 2026 09:45:31 GMT

link

<https://countdownjapan.jp/wp-json/>; rel="https://api.w.org...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

countdownjapan.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.

78/100

Mobile Friendly5 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...

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Typography & Readability

YakuHanJP_Noto

WCAG Partial

57/100

Readability

/30

17/30

15px · LH 1.40

Hierarchy

/20

12/20

0.93x ratio · ✓ H1→H6

WCAG

/25

13/25

1:1 min contrast

Performance

/25

15/25

2 fonts · 1 req

Heading Font

YakuHanJP_Noto

Sans14px

Body Font

YakuHanJP_Noto

Sans15px

Contrast Ratio

1:1

11 issues

Reading Comfort

~41 CPL

Narrow lines

14px

30px

15px

Golden Ratio

Scale

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

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

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

Buy on MyFontsFlesch 41

Color Palette

9 unique colors

21:1 AAA Dark

#000000

Background· 23.3%

#ffffff

Background· 16.8%

#081539

Accent· 19.700000000000003%

#dee4f2

Secondary· 8.1%

#070919

Primary· 7.1%

#1f305a

Secondary· 7.1%

#ada2b6

Secondary· 6.5%

#54374e

Secondary· 5.8%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)google-analytics.com(1)fesapp.jp(1)local(1)

Website Identity

JAPAN JAM 2023

Organization

国内最大の年越しフェス、12月27日・28日・29日・30日・31日、幕張メッセにて開催！

countdownjapan.jp/

Location detected: 🇯🇵 Japanvia tld

Social Profiles

X (Twitter)Instagram YouTube TikTok

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Last analyzed: 31 May 2026 at 09:45

Historical Analysis & Change Tracking