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SGSiteGraph

bluesphere.jp

BLUE Sphere

Last scanned Aug 24, 2026, 1:21 PM · 1 view

70

Overall score

Fair

Summary

This website uses Google Analytics behind CloudFront CDN. SEO is fair (60/100) and accessibility is fair (70/100). Security scores fair (65/100) and performance good (85/100). Top issue: Missing meta description.

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.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • 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.

60

SEO

6 issue(s) found

85

Performance

161 ms

65

Security

HTTPS & header checks

70

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.

Meta tags

Title
BLUE Sphere
Description
Canonical
Language
ja
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
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 AnalyticsGoogle Ads

Hosting & CDN

Hosting provider
—
CDN provider
CloudFront
IP address
3.175.86.104
ASN
—

DNS records

TypeValue
A
  • 3.175.86.104
  • 3.175.86.63
  • 3.175.86.42
  • 3.175.86.96
AAAA—
MX
  • aspmx3.googlemail.com
  • alt2.aspmx.l.google.com
  • aspmx2.googlemail.com
  • aspmx.l.google.com
  • alt1.aspmx.l.google.com
TXT
  • google-site-verification=PwXlHIihv4DnrAmuLB-mEHSaMOmQqRJ4UTx9TzidXck
  • v=spf1 ip4:203.141.155.242 ip4:183.182.45.254 ip4:183.182.49.20 include:_spf.google.com include:amazonses.com include:spf.am.arara.com include:_spf.activegate-ss.jp ~all
NS
  • ns-964.awsdns-56.net
  • ns-440.awsdns-55.com
  • ns-1652.awsdns-14.co.uk
  • ns-1311.awsdns-35.org
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Sectigo Limited
Subject
*.bluesphere.jp
Valid from
Sep 3, 2025
Valid to
Oct 3, 2026
Days until expiry
40
SAN domains
*.bluesphere.jp, bluesphere.jp

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 13 · H3 31

Links

17 internal · 6 external · 0 broken

Images

64 total · 34 missing alt

Scripts / Styles

16 scripts · 6 stylesheets

JS / CSS size

2.1 MB · 93.1 KB

Page size

45.6 KB

Robots.txt & Sitemap

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

SEO issues

  • Missing meta description
  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text

Scan details

Requested URL
https://bluesphere.jp
Final URL
https://bluesphere.jp
HTTP status
200
HTTP version
HTTP/2
Response time
161 ms
HTML size
45.6 KB
Redirect chain
https://bluesphere.jp

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Frequently asked questions

What technology does bluesphere.jp use?
bluesphere.jp is built with jQuery, Google Analytics, Google Ads.
Is bluesphere.jp secure (HTTPS)?
Yes. bluesphere.jp uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Oct 3, 2026.
Who hosts bluesphere.jp?
Hosting provider information for bluesphere.jp is not available yet.
What is bluesphere.jp's SEO score?
bluesphere.jp scored 60/100 for SEO in the latest analysis (fair).
What is bluesphere.jp's overall website score?
bluesphere.jp has an overall SiteGraph score of 70/100, combining SEO, performance, security, and accessibility.