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benesse.co.jp

Benesse | ベネッセコーポレーション

Last scanned Jul 29, 2026, 10:00 PM · 10 views

84

Overall score

Great

Summary

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… This website uses Apache. SEO is good (75/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

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。

Top issues to fix

10 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • 5 cookies without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

+4 more issues — details in the sections below.

75

SEO

4 issue(s) found

100

Performance

137 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-1 overall since Jul 22, 2026

Overall
84
SEO
75
Security
65
Performance
100
Accessibility
100

Organization

Company details published in this site's own structured data.

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。

Meta tags

Title
Benesse | ベネッセコーポレーション
Description
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。
Canonical
https://www.benesse.co.jp/
Language
ja
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Benesse | ベネッセコーポレーション
og:description
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。
og:type
website
og:url
https://www.benesse.co.jp/

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

jQueryApache

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Cybertrust Japan Co., Ltd.
Subject
www.benesse.co.jp
Valid from
Dec 1, 2025
Valid to
Dec 31, 2026
Days until expiry
154
SAN domains
www.benesse.co.jp, benesse.co.jp

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 5 cookie(s) observed

Content & assets

Headings

H1 1 · H2 4 · H3 0

Links

40 internal · 5 external · 20 broken

Images

14 total · 0 missing alt

Scripts / Styles

11 scripts · 5 stylesheets

JS / CSS size

581 B · 0 B

Page size

24.9 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Meta description longer than 160 characters
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://benesse.co.jp
Final URL
https://benesse.co.jp
HTTP status
200
HTTP version
HTTP/1.1
Response time
137 ms
HTML size
24.9 KB
Redirect chain
https://benesse.co.jp

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does benesse.co.jp use?
benesse.co.jp is built with jQuery, Apache.
Is benesse.co.jp secure (HTTPS)?
Yes. benesse.co.jp uses TLS 1.3 with a certificate issued by Cybertrust Japan Co., Ltd., valid until Dec 31, 2026.
Who hosts benesse.co.jp?
Hosting provider information for benesse.co.jp is not available yet.
What is benesse.co.jp's SEO score?
benesse.co.jp scored 75/100 for SEO in the latest analysis (fair).
What is benesse.co.jp's overall website score?
benesse.co.jp has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
Has benesse.co.jp's score changed over time?
benesse.co.jp's overall score has declined by 1 point (from 85 to 84) since Jul 22, 2026.