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SGSiteGraph

schoo.jp

ERROR: The request could not be satisfied

Last scanned Aug 24, 2026, 1:22 PM · 3 views

79

Overall score

Fair

Summary

This website uses Nginx hosted on AWS behind CloudFront CDN. SEO is fair (70/100) and accessibility is good (85/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.

United States
Hosted on AWS

Top issues to fix

11 issues found · 4 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 meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • 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 more issues — details in the sections below.

70

SEO

4 issue(s) found

100

Performance

888 ms

65

Security

HTTPS & header checks

85

Accessibility

2 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.

Contact

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

Source: https://schoo.jp/contact

Meta tags

Title
ERROR: The request could not be satisfied
Description
Canonical
Language
Charset
iso-8859-1
Viewport
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.

Nginx

Hosting & CDN

Hosting provider
AWS
CDN provider
CloudFront
IP address
108.158.61.99
ASN
AS16509 (AMAZON-02 - Amazon.com, Inc., US)

DNS records

TypeValue
A
  • 108.158.61.99
  • 108.158.61.71
  • 108.158.61.119
  • 108.158.61.89
AAAA—
MX
  • alt3.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • aspmx.l.google.com
TXT—
NS
  • ns-985.awsdns-59.net
  • ns-1196.awsdns-21.org
  • ns-119.awsdns-14.com
  • ns-1808.awsdns-34.co.uk
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
schoo.jp
Valid from
Oct 26, 2025
Valid to
Nov 24, 2026
Days until expiry
91
SAN domains
schoo.jp, *.schoo.jp

Security headers

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

Compression: none · 6 cookie(s) observed

Content & assets

Headings

H1 1 · H2 1 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

0 scripts · 0 stylesheets

JS / CSS size

0 B · 0 B

Page size

176 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
6
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Missing meta description
  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags

Accessibility issues

  • Missing <html lang> attribute
  • Missing viewport meta tag

Scan details

Requested URL
https://schoo.jp
Final URL
https://schoo.jp
HTTP status
200
HTTP version
HTTP/2
Response time
885 ms
HTML size
176 KB
Redirect chain
https://schoo.jp

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does schoo.jp use?
schoo.jp is built with Nginx.
Is schoo.jp secure (HTTPS)?
Yes. schoo.jp uses TLS 1.3 with a certificate issued by Amazon, valid until Nov 24, 2026.
Who hosts schoo.jp?
schoo.jp is hosted on AWS, behind CloudFront CDN.
What is schoo.jp's SEO score?
schoo.jp scored 70/100 for SEO in the latest analysis (fair).
What is schoo.jp's overall website score?
schoo.jp has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.