j-server.com

https://j-server.com· First analyzed 29 Apr 2026· Updated 29 Apr 2026

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j-server.com

Mobile

Sponsored

Hosting Provider

SAKURA-ISHIKARI

IP Address

153.125.144.77

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Ishikari, Japan

ASN

AS7684

Organization

SAKURA-ISHIKARI

Server

Apache

Nameservers

ns2.dns.ne.jp.ns1.dns.ne.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.0 s10%

Speed Index

2.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.1 MB

71 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

kodenshaCustom

Technology Stack

14 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

CSS Frameworks

Tailwind CSS

Bootstrap

Plugins

Announcer Wp Pagenavi

Libraries

Icon Libraries

Fonts

Tag Managers

Marketing

Web Servers

SEO Analysis

D56/100

Meta Tags4/15

Content9/12

Headings0/8

Technical23/25

E-E-A-T2/7

Images1/7

Links2/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

j-server.comj-server.com

サービス・製品 | 中国語・韓国語翻訳・音声合成なら高電社

No description available for this page.

Title Length29 chars

Recommended: 50-60 chars (~177px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (15/17) — critical for accessibility and SEO

8 issues found

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Crawlability

Sitemap

Type: standard

151 URLs

robots.txt

5 rules

Local SEO

Local Search Readiness

17/100

Poor

5 12

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

Sponsored

AI & LLM Readiness

F37/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

6/25

Citation

7/25

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:3%

Words:201

Token eff.:Too Short

Depth:2/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbList

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph1/3

Twitter Card2/3

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.

66/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

12/20

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

0/15

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.

35/100

139 mg

CO₂e / view

1.1 MB

Page Weight

70%

Cleaner Than

New Visitor

159 mg

Returning (cached)

79 mg

Annual (10K/mo)

16.6 kg

Emission Segments

Data Center

31 mg

Network

33 mg

Device

74 mg

Resource Breakdown

JavaScript

230.2 KB

Images

663.1 KB

CSS

179.6 KB

Fonts

963 B

HTML

47.2 KB

Green Hosting Not Verified

SAKURA-ISHIKARI

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

88d

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/1.1

Valid From

25.06.2025

Valid Until

27.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.kodensha.jpkodensha.jp

SHA-256 Fingerprint

1F:52:30:22:30:0D:6A:51:64:7B:7F:CB:6C:08:0E:10:66:C3:2D:51...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

Keep-Alive

content-type

text/html; charset=UTF-8

date

Wed, 29 Apr 2026 08:39:58 GMT

keep-alive

timeout=5, max=100

link

<https://www.kodensha.jp/index/wp-json/>; rel="https://api.w...

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mxz.j-server.com

Domain Information

j-server.com

Domain Age

26y 1m

Created

23.03.2000

Expires

22.03.2029

Last Updated

05.09.2019

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

52/100

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, user-scalable=1.0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

ヒラギノ角ゴシック Pro

WCAG AAA

65/100

Readability

/30

18/30

14px · LH 1.76

Hierarchy

/20

10/20

WCAG

/25

24/25

14:1 min contrast

Performance

/25

13/25

1 font · 1 req

Heading Font

ヒラギノ角ゴシック Pro

Body Font

ヒラギノ角ゴシック Pro

Sans14px

Contrast Ratio

14:1

WCAG AAA (≥7:1)

Reading Comfort

Single Family

left aligned

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

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 14.0:1).

✅ 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 MyFonts

Color Palette

8 unique colors

2.6:1 Fail Light

#ffffff

Background· 19.1%

#9fa19f

Other· 7.1%

#ebf2f8

Background· 26.900000000000002%

#002d55

Primary· 21.700000000000003%

#002043

Primary· 8.5%

#45788b

Secondary· 7.4%

#123961

Accent· 6.5%

#b2d0b9

Secondary· 2.5%

Business & Marketing Stack

8 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Social Media

Facebook SDKFree

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

27 Resources

Scripts

Styles

Async

Defer

Top Script Sources

apis.google.com(3)kodensha.jp(3)connect.facebook.net(2)googletagmanager.com(2)cdnjs.cloudflare.com(2)

Website Identity

中国語・韓国語翻訳・音声合成なら高電社

Organization

機械翻訳サービス

www.kodensha.jp/index/

26 years old

Location detected: 🇯🇵 Japanvia ip

Network Solutions, LLCja

Social Profiles

X (Twitter)

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Last analyzed: 29 Apr 2026 at 08:40

Historical Analysis & Change Tracking