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japan.go.jp

https://japan.go.jp· First analyzed 29 Apr 2026· Updated 29 Apr 2026
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japan.go.jp
Desktop screenshot of japan.go.jp
Mobile screenshot of japan.go.jp
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

3.164.68.84

Site Location

🇯🇵 Japanvia tld

Server Location

🇫🇮 Helsinki, Finland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

AmazonS3

CDN

CloudFront

Nameservers

ns-440.awsdns-55.com.ns-885.awsdns-46.net.ns-1336.awsdns-39.org.ns-1598.awsdns-07.co.uk.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
487 ms10%
Speed Index
633 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
111 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Technology Stack

6 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Microsoft Clarity

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

SEO Analysis

B71/100
19
7
1
Meta Tags11/15
Content10/12
Headings3/8
Technical21/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile3/4
Indexability3/3
J
japan.go.jpjapan.go.jp

The Government of Japan - JapanGov

The official website of the Government of Japan, provides a wealth of information on important policies and efforts to spread fruit of innovation and technol...

Description truncated.
Title Length34 chars

Recommended: 50-60 chars (~219px / 580px)

Description Length161 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

17 URLs

17 sub-sitemaps

robots.txt

Local SEO

Local Search Readiness

14/100
Poor
4 14

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.
1/25
Schema Data
6/25
Citation
12/25

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:7%
Words:3,316
Token eff.:Poor Structure

Structured Data

2 JSON-LD
Organization×1.1WebSite
sameAs entity links

Citation Readiness

Opening Summary336w
Descriptive Headingsavg 1.7w
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...
Upgrade to view recommendations

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.
A+
95/100
16
Passed
0
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
15/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
10/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
66/100
B
121 mg
CO₂e / view
1.2 MB
Page Weight
70%
Cleaner Than
New Visitor
138 mg
vs
Returning (cached)
69 mg
Annual (10K/mo)
14.5 kg
Emission Segments
Data Center
6 mg
Network
35 mg
Device
79 mg
Resource Breakdown
JavaScript
185.0 KB
Images
872.8 KB
CSS
111.5 KB
Fonts
10.7 KB
HTML
12.4 KB
Other
2.0 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

26%Critical
Interactive

HTTPS

WAF

228d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.11.2025

Valid Until

13.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.japan.go.jpjapan.go.jp

SHA-256 Fingerprint

AC:AE:3D:57:DB:D0:31:7E:8E:5F:85:39:EE:F1:A6:C9:41:F4:F9:3D...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age
79658
cache-control
🔵 1 Days(max-age=86400)
content-encoding
⚡ Brotli(br)
content-type
text/html
date
Tue, 28 Apr 2026 01:58:57 GMT
etag
W/"bbe41dd44a09f5393bfd597241d0596e"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

30

SPF
DKIM
DMARC

Domain Information

japan.go.jp

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
Legitimate interest basis mentioned

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.
A
80/100
Mobile Friendly26 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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica Neue + Verdana

WCAG AA
54/100
Readability
/30
8/30

13px · LH 1.84

Hierarchy
/20
14/20

1.08x ratio · ✓ H1→H6

WCAG
/25
20/25

4.54:1 min contrast

Performance
/25
12/25

System fonts

Heading Font

Helvetica Neue

Sans14px

Body Font

Verdana

Sans13px

Contrast Ratio

4.54:1

WCAG AA (≥4.5:1)

Reading Comfort

~43 CPL

Narrow lines
14px
h1
34px
h2
30px
h3
24px
h4
13px
p
Minor Third
Scale

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

⚠️ Wide line spacing (1.84). 1.4–1.6 is optimal for body text.

❌ Very complex text: Flesch score 6/100. Consider shorter sentences and simpler words.

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

✅ 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.

GGoogle FontsFluid TypeFlesch 6

Color Palette

11 unique colors
17.32:1 AAA Light
#ffffff
Background· 48.5%
#181b1c
Text· 5.8%
#5c302f
Secondary· 8.9%
#b6dcf7
Accent· 7%
#c8b0b5
Secondary· 6%
#9aa3b3
Border· 4.9%
#dff6fd
Primary· 3.8%
#8a7276
Secondary· 3.5%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
Microsoft ClarityFree

User behavior and product analytics

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

Social Media

1
Twitter/X WidgetsFree

Social widgets and sharing tools

3

Categories

5

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Sponsored

Scripts & Styles

29 Resources

19
Scripts
10
Styles
7
Async
6
Defer

Top Script Sources

_userdata(3)googletagmanager.com(2)consent.cookiebot.com(2)youtube.com(2)local(2)

Website Identity

The Government of Japan

The Government of Japan

Organization

The official website of the Government of Japan,provides a wealth of information on important policies and efforts to spread fruit of innovation and technology.

www.japan.go.jp/
Location detected: 🇯🇵 Japanvia tld
en

Sponsored

Last analyzed: 29 Apr 2026 at 00:06

Historical Analysis & Change Tracking