asakura.co.jp

https://asakura.co.jp· First analyzed 18 May 2026· Updated 18 May 2026

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asakura.co.jp

Mobile

Sponsored

Hosting Provider

GCTR

IP Address

124.147.11.78

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS9607

Organization

GCTR

Server

Nginx

Nameservers

ns-171.awsdns-21.com.ns-1894.awsdns-44.co.uk.ns-722.awsdns-26.net.ns-1046.awsdns-02.org.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.9 s10%

Speed Index

2.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

28 MB

141 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

GCTR

Technology Stack

9 Technologies Detected

UI Components

Swiper Slick Carousel

Analytics

Libraries

Fonts

Tag Managers

Web Servers

Languages

SEO Analysis

D51/100

Meta Tags7/15

Content11/12

Headings3/8

Technical9/21

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

asakura.co.jpasakura.co.jp

朝倉書店

「出版社の朝倉書店です。創業1929年。理学・工学・医学・農学・人文科学・家政学などの学術専門書，および事典・辞典・ハンドブック，大学教科書などの書籍をご案内します。」

Title Length4 chars

Recommended: 50-60 chars (~24px / 580px)

Description Length84 chars

Recommended: 120-160 chars

Issues (1)

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

11 issues found

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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

F37/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

0/25

Citation

4/25

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:12%

Words:826

Token eff.:Optimal

Sections/1K:147.7

Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary10w

Descriptive Headingsavg 1.3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

72/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

14/20

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

9/15

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.

6/100

3.55 g

CO₂e / view

28.0 MB

Page Weight

Cleaner Than

New Visitor

4.06 g

Returning (cached)

2.03 g

Annual (10K/mo)

426.0 kg

Emission Segments

Data Center

793 mg

Network

852 mg

Device

1.91 g

Resource Breakdown

JavaScript

295.9 KB

Images

27.4 MB

CSS

190.7 KB

Fonts

89.2 KB

HTML

59.0 KB

Green Hosting Not Verified

GCTR

9 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

No SSL

No WAF

N/A

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

connection

keep-alive

content-type

text/html; charset=UTF-8

date

Mon, 18 May 2026 00:17:05 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

v1300-169.mailsecure.jp

Domain Information

asakura.co.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.

50/100

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=1.0,minimum-scale=0.2,maximum-scale=2.0,user-scalable=yes

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

游ゴシック体 + Noto Sans JP

WCAG Partial

62/100

Readability

/30

15/30

10px · LH 1.80

Hierarchy

/20

11/20

1.41x ratio · ✓ H1→H6

WCAG

/25

16/25

1:1 min contrast

Performance

/25

20/25

2 fonts · 3 req

Heading Font

游ゴシック体

Sans14px

Body Font

Noto Sans JP

Sans10px

Contrast Ratio

1:1

1 issue

Reading Comfort

~73 CPL

Optimal (45–75)

14px

24px

17px

14px

10px

Minor Second

Scale

❌ Critical: 10px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line length: ~73 chars/line (ideal 45–75 CPL).

✅ Easy to read: Flesch score 76/100 — accessible to general audiences.

⚠️ Partial contrast: 1 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.

GGoogle Fonts Buy on MyFontsFlesch 76

Color Palette

7 unique colors

Light

#ffffff

Background· 73.19999999999999%

#edf4f3

Primary· 7.2%

#384a6a

Secondary· 5.6%

#ccd9db

Secondary· 4.8%

#7e9e95

Secondary· 4.7%

#afcac2

Secondary· 3.5%

#e1dbbb

Secondary· 1%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js(5)googletagmanager.com(4)platform.twitter.com(2)google-analytics.com(1)seal.atlas.globalsign.com(1)

Website Identity

asakura.co.jp

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Facebook X (Twitter)

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Last analyzed: 18 May 2026 at 00:17

Historical Analysis & Change Tracking