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zyuken.net

高校受験ナビ - 高校偏差値・掲示板（全国高校入試）

Last scanned Jul 26, 2026, 5:18 AM

77

Overall score

Fair

Summary

高校受験ナビは高校偏差値などの情報を一覧や検索から探せる高校案内サイトです。全国の高校の掲示板や高校受験の勉強法、模試や面接の対策、塾や家庭教師の�… This website uses Apache hosted on So-net - Sony Network Communications Inc., JP. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

高校受験ナビは高校偏差値などの情報を一覧や検索から探せる高校案内サイトです。全国の高校の掲示板や高校受験の勉強法、模試や面接の対策、塾や家庭教師の情報など。

Japan
Hosted on So-net - Sony Network Communications Inc., JP

Top issues to fix

10 issues found · 3 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.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • 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.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

+4 more issues — details in the sections below.

60

SEO

6 issue(s) found

100

Performance

434 ms

65

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

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

高校受験ナビは高校偏差値などの情報を一覧や検索から探せる高校案内サイトです。全国の高校の掲示板や高校受験の勉強法、模試や面接の対策、塾や家庭教師の情報など。

Contact

Email, phone, and address published on this site's own pages.

Source: https://www.zyuken.net/help

Meta tags

Title
高校受験ナビ - 高校偏差値・掲示板（全国高校入試）
Description
高校受験ナビは高校偏差値などの情報を一覧や検索から探せる高校案内サイトです。全国の高校の掲示板や高校受験の勉強法、模試や面接の対策、塾や家庭教師の情報など。
Canonical
https://www.zyuken.net/
Language
ja
Charset
euc-jp
Viewport
width=device-width, initial-scale=1, maximum-scale=5
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

jQueryGoogle AnalyticsApache

Hosting & CDN

CDN provider
—
IP address
159.28.220.139
ASN
AS2527 (So-net - Sony Network Communications Inc., JP)

DNS records

TypeValue
A
  • 159.28.220.139
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Sectigo Limited
Subject
*.zyuken.net
Valid from
Jun 3, 2026
Valid to
Dec 18, 2026
Days until expiry
143
SAN domains
*.zyuken.net, zyuken.net

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 12 · H3 0

Links

117 internal · 0 external · 0 broken

Images

1 total · 0 missing alt

Scripts / Styles

9 scripts · 3 stylesheets

JS / CSS size

86.4 KB · 30.9 KB

Page size

46.1 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
1
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Title longer than 60 characters
  • Meta description longer than 160 characters
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://zyuken.net
Final URL
https://www.zyuken.net/
HTTP status
200
HTTP version
HTTP/2
Response time
434 ms
HTML size
46.1 KB
Redirect chain
https://zyuken.net → https://www.zyuken.net/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does zyuken.net use?
zyuken.net is built with jQuery, Google Analytics, Apache.
Is zyuken.net secure (HTTPS)?
Yes. zyuken.net uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Dec 18, 2026.
Who hosts zyuken.net?
zyuken.net is hosted on So-net - Sony Network Communications Inc., JP.
What is zyuken.net's SEO score?
zyuken.net scored 60/100 for SEO in the latest analysis (fair).
What is zyuken.net's overall website score?
zyuken.net has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.