japias.jp

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

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japias.jp

Mobile

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Hosting Provider

SAKURA-ISHIKARI

IP Address

153.125.146.162

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Ishikari, Japan

ASN

AS7684

Organization

SAKURA-ISHIKARI

Server

Nginx

Nameservers

ns2.gslb8.sakura.ne.jp.ns1.gslb8.sakura.ne.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.5 s10%

Speed Index

2.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

164 KB

12 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

SAKURA-ISHIKARI

Technology Stack

1 Technologies Detected

Web Servers

Nginxv1.28.0

SEO Analysis

D50/100

Meta Tags7/15

Content7/12

Headings8/8

Technical10/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

japias.jpjapias.jp

特定非営利活動法人学校インターネット教育推進協会のWebサイトです

No description available for this page.

Title Length33 chars

Recommended: 50-60 chars (~207px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Most images missing alt text (2/3) — critical for accessibility and SEO

10 issues found

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Local SEO

Local Search Readiness

8/100

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

F29/100

Bot Access

20/25

Machine Read.

6/25

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

navheader/footer

Text ratio:13%

Words:49

Token eff.:Too Short

Sections/1K:20

Depth:2/5

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 (10)

AI readiness recommendation preview...

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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.

62/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

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.

2 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.

53/100

A+

20 mg

CO₂e / view

163.8 KB

Page Weight

95%

Cleaner Than

New Visitor

23 mg

Returning (cached)

12 mg

Annual (10K/mo)

2.4 kg

Emission Segments

Data Center

5 mg

Network

5 mg

Device

11 mg

Resource Breakdown

JavaScript

93.3 KB

Images

47.1 KB

CSS

13.9 KB

HTML

9.5 KB

Green Hosting Not Verified

SAKURA-ISHIKARI

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

71d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

13.05.2026

Valid Until

11.08.2026

Subject Alternative Names (1)

japias.jp

SHA-256 Fingerprint

A8:A3:3D:AB:9F:60:0A:16:C3:BC:EE:37:D3:3E:B7:B1:09:32:49:B4...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

keep-alive

content-length

9379

content-type

text/html

date

Sun, 31 May 2026 23:31:41 GMT

etag

"6a0515a9-24a3"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

new.japias.jp

Domain Information

japias.jp

DNSSEC

Not Enabled

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.

46/100

Not Mobile Friendly

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, user-scalable=yes, maximum-scale=1.0, minimum-scale=1.0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

verdana

WCAG Partial

60/100

Readability

/30

18/30

14px · LH 1.70

Hierarchy

/20

11/20

0.71x ratio · ✓ H1→H6

WCAG

/25

17/25

2.25:1 min contrast

Performance

/25

14/25

1 font

Heading Font

verdana

Sans10px

Body Font

verdana

Sans14px

Contrast Ratio

2.25:1

4 issues

Reading Comfort

~46 CPL

Optimal (45–75)

10px

28px

14px

Major Sixth

Scale

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

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 2.2:1).

✅ 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.

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

Buy on MyFonts

Color Palette

9 unique colors

2.11:1 Fail Light

#ffffff

Background· 84.2%

#b5b2b1

Other· 2.5%

#b8cac6

Primary· 2.6%

#e5ede9

Secondary· 2.4%

#385289

Secondary· 1.7%

#7f8ca2

Secondary· 1.5%

#d5cfbf

Secondary· 1.3%

#8ca7a2

Secondary· 1.3%

Business & Marketing Stack

1 Tools Detected

Basic

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

5 Resources

Scripts

Styles

Async

Defer

Top Script Sources

platform.twitter.com(2)js(2)

Website Identity

japias.jp

Location detected: 🇯🇵 Japanvia tld

Social Profiles

X (Twitter)

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Last analyzed: 31 May 2026 at 23:32

Historical Analysis & Change Tracking