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benesse.co.jp

https://benesse.co.jp· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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benesse.co.jp
Desktop screenshot of benesse.co.jp
Mobile screenshot of benesse.co.jp
Mobile

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Hosting Provider

Incapsula Inc

IP Address

45.60.20.38

Site Location

🇯🇵 Japanvia tld

Server Location

🇬🇧 London, United Kingdom

ASN

AS19551

Organization

Incapsula Inc

Server

Apache

CDN

CDN

Nameservers

ns1-03.azure-dns.com.ns2-03.azure-dns.net.ns3-03.azure-dns.org.ns4-03.azure-dns.info.

Performance

75

Core Web Vitals

Weight

First Contentful Paint
3.2 s10%
Speed Index
4.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
9.6 MB
70 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Incapsula Inc
CDN
CDN

Technology Stack

10 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Libraries

1
jQueryv3.7.1

UI Components

1
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Payments

1
Square

Web Servers

1
Apache

SEO Analysis

D55/100
15
6
2
Meta Tags8/15
Content7/12
Headings3/8
Technical16/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
B
benesse.co.jpbenesse.co.jp

Benesse | ベネッセコーポレーション

ベネッセコーポレーションのコーポレートサイトです。企業哲学やパーパス、4つの学びのフィールド（お子さまの学び、大学・社会人の学び、学校での学びの支援、企業での学びの支援）で展開する多様な商品・サービス、社員インタビューなどをご紹介します。

Title Length22 chars

Recommended: 50-60 chars (~134px / 580px)

Description Length119 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (6/10) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

500 URLs

robots.txt

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

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

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AI & LLM Readiness

F37/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
10/25

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:143
Token eff.:Too Short
Sections/1K:28
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.2w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
A
83/100
12
Passed
1
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
18/100
F
1.21 g
CO₂e / view
9.6 MB
Page Weight
5%
Cleaner Than
New Visitor
1.38 g
vs
Returning (cached)
692 mg
Annual (10K/mo)
145.2 kg
Emission Segments
Data Center
270 mg
Network
291 mg
Device
650 mg
Resource Breakdown
JavaScript
70.4 KB
Images
6.3 MB
CSS
3.2 MB
Fonts
1.9 KB
HTML
5.6 KB
Green Hosting Not Verified
Incapsula Inc
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

WAF

245d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Cybertrust Japan Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

01.12.2025

Valid Until

31.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.benesse.co.jpbenesse.co.jp

SHA-256 Fingerprint

D8:23:BC:86:35:20:95:C7:C6:0D:C7:07:18:85:C8:50:31:89:FB:F8...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-type
text/html
date
Thu, 30 Apr 2026 09:45:21 GMT
server
Apache
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

benesse-co-jp.mail.protection.outlook.com

Domain Information

benesse.co.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.
D
59/100
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Hiragino Kaku Gothic Pro

WCAG Partial
67/100
Readability
/30
20/30

18px · LH 1.89

Hierarchy
/20
12/20

0.89x ratio · ✓ H1→H6

WCAG
/25
15/25

1.09:1 min contrast

Performance
/25
20/25

2 fonts · 2 req

Heading Font

Hiragino Kaku Gothic Pro

Sans16px

Body Font

Hiragino Kaku Gothic Pro

Sans18px

Contrast Ratio

1.09:1

9 issues

Reading Comfort

~40 CPL

Narrow lines
16px
h1
64px
h2
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Wide line spacing (1.89). 1.4–1.6 is optimal for body text.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.1:1).

✅ 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.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

GGoogle FontsBuy on MyFontsFluid Type (rem)

Color Palette

9 unique colors
11.93:1 AAA Light
#ffffff
Background· 97.70000000000002%
#35373b
Other· 0.4%
#e4e2db
Primary· 0.3%
#c0b9ab
Secondary· 0.2%
#9ea8af
Secondary· 0.2%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Facebook PixelMid-Market

Ad platforms and retargeting pixels

2

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

24 Resources

19
Scripts
5
Styles
13
Async
1
Defer

Top Script Sources

googletagmanager.com(6)local(5)s.yimg.jp(2)tags.tiqcdn.com(2)connect.facebook.net(1)

Website Identity

benesse.co.jp

Location detected: 🇯🇵 Japanvia tld
📧 Microsoft 365ja

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Last analyzed: 30 Apr 2026 at 09:45

Historical Analysis & Change Tracking