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jas-audio.or.jp

https://jas-audio.or.jp· First analyzed 31 May 2026· Updated 31 May 2026
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jas-audio.or.jp
Desktop screenshot of jas-audio.or.jp
Mobile screenshot of jas-audio.or.jp
Mobile

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Hosting Provider

KDDI Web Communications Inc.

IP Address

103.197.14.166

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Minato, Japan

ASN

AS9597

Organization

KDDI Web Communications Inc.

Server

Apache

Nameservers

04.dnsv.jp.01.dnsv.jp.02.dnsv.jp.03.dnsv.jp.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
274 ms10%
Speed Index
356 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6 KB
56 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
jas2022Custom

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

D50/100
14
10
2
Meta Tags7/15
Content7/12
Headings3/8
Technical16/25
E-E-A-T0/7
Images3/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
J
jas-audio.or.jpjas-audio.or.jp

一般社団法人 日本オーディオ協会

オーディオの普及に向けた活動や情報提供を行い、オーディオ展示会「OTOTEN」等のイベントの開催など、オーディオに関わるイベントを主宰する日本オーディオ協会の公式WEBサイト

Title Length16 chars

Recommended: 50-60 chars (~99px / 580px)

Description Length87 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (32/52) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

32 URLs

32 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

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

F26/100
Bot Access
20/25
Machine Read.
3/25
Schema Data
0/25
Citation
3/25

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
def. listsnavheader/footer
Text ratio:4%
Words:110
Token eff.:Too Short
Sections/1K:45.5
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1w
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...
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.
C
68/100
8
Passed
4
Critical
1
Warnings
Images & Alt Text
20/20
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
10/15
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.
3 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
56/100
A+
<0.001 g
CO₂e / view
6.3 KB
Page Weight
95%
Cleaner Than
New Visitor
<0.001 g
vs
Returning (cached)
<0.001 g
Annual (10K/mo)
96 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
<0.001 g
Resource Breakdown
JavaScript
300 B
HTML
6.0 KB
Green Hosting Not Verified
KDDI Web Communications Inc.
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

83d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Japan Registry Services Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

24.05.2026

Valid Until

23.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.jas-audio.or.jpjas-audio.or.jp

SHA-256 Fingerprint

E6:73:65:A0:98:62:E6:EE:20:BD:20:76:A9:74:FC:FB:90:F3:57:CB...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-length
5834
content-type
text/html; charset=UTF-8
date
Sun, 31 May 2026 17:38:25 GMT
link
<https://www.jas-audio.or.jp/wp-json/>; rel="https://api.w.o...
server
Apache
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

50

SPF
DKIM
DMARC

MX Records (1)

jasaudio-or-jp0i.mail.protection.outlook.com

Domain Information

jas-audio.or.jp

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
C
61/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Yu Gothic Medium

WCAG Partial
48/100
Readability
/30
14/30

14px · LH 1.00

Hierarchy
/20
8/20
WCAG
/25
10/25

1.69:1 min contrast

Performance
/25
16/25

1 font

Heading Font

Yu Gothic Medium

Sans

Body Font

Yu Gothic Medium

Sans14px

Contrast Ratio

1.69:1

4 issues

Reading Comfort

~62 CPL

Optimal (45–75)
24px
h2
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

✅ Optimal line length: ~62 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.7:1).

❌ 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).

Buy on MyFonts

Color Palette

5 unique colors
8.52:1 AAA Light
#e9e7e7
Other· 0%
#473d3c
Secondary· 0%
#231816
Primary· 99.8%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

9 Resources

6
Scripts
3
Styles
3
Async
0
Defer

Top Script Sources

googletagmanager.com(2)jas-audio.or.jp(2)google-analytics.com(1)extend.vimeocdn.com(1)

Website Identity

jas-audio.or.jp

Location detected: 🇯🇵 Japanvia tld
📧 Microsoft 365ja

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Last analyzed: 31 May 2026 at 17:39

Historical Analysis & Change Tracking

jas-audio.or.jp Technology Stack - Built With jQuery, Tailwind CSS, Google Analytics, Google Analytics 4, Google Tag Manager | StackOptic | StackOptic