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SGSiteGraph

kantei.go.jp

Page Not Found - お探しのページが見つかりませんでした。 | 首相官邸ホームページ

Last scanned Jul 22, 2026, 8:12 PM · 2 views

84

Overall score

Great

Summary

This website is hosted on AWS. SEO is fair (55/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

United States
Hosted on AWS

Top issues to fix

8 issues found · 2 high priority

  • 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.

  • Title longer than 60 characters

    SEO

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

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

+2 more issues — details in the sections below.

55

SEO

7 issue(s) found

100

Performance

460 ms

90

Security

HTTPS & header checks

100

Accessibility

0 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
Page Not Found - お探しのページが見つかりませんでした。 | 首相官邸ホームページ
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.

No technologies detected.

Hosting & CDN

Hosting provider
AWS
CDN provider
CloudFront
IP address
108.159.80.125
ASN
AS16509 (AMAZON-02 - Amazon.com, Inc., US)

DNS records

TypeValue
A
  • 108.159.80.125
  • 108.159.80.53
  • 108.159.80.66
  • 108.159.80.44
AAAA
  • 2600:9000:238c:a200:f:58f3:8fc0:93a1
  • 2600:9000:238c:9c00:f:58f3:8fc0:93a1
  • 2600:9000:238c:9000:f:58f3:8fc0:93a1
  • 2600:9000:238c:8200:f:58f3:8fc0:93a1
  • 2600:9000:238c:e00:f:58f3:8fc0:93a1
  • 2600:9000:238c:b200:f:58f3:8fc0:93a1
  • 2600:9000:238c:5000:f:58f3:8fc0:93a1
  • 2600:9000:238c:3200:f:58f3:8fc0:93a1
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
*.kantei.go.jp
Valid from
Mar 13, 2026
Valid to
Sep 26, 2026
Days until expiry
66
SAN domains
*.kantei.go.jp

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 2 · H3 0

Links

2 internal · 3 external · 0 broken

Images

1 total · 0 missing alt

Scripts / Styles

0 scripts · 2 stylesheets

JS / CSS size

0 B · 144 KB

Page size

18.2 KB

Robots.txt & Sitemap

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

SEO issues

  • Title longer than 60 characters
  • 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

No accessibility issues detected.

Scan details

Requested URL
https://kantei.go.jp
Final URL
https://www.kantei.go.jp/
HTTP status
200
HTTP version
HTTP/2
Response time
460 ms
HTML size
18.2 KB
Redirect chain
https://kantei.go.jp → https://www.kantei.go.jp/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does kantei.go.jp use?
We did not detect any specific technologies for kantei.go.jp in the latest scan.
Is kantei.go.jp secure (HTTPS)?
Yes. kantei.go.jp uses TLS 1.3 with a certificate issued by Amazon, valid until Sep 26, 2026.
Who hosts kantei.go.jp?
kantei.go.jp is hosted on AWS, behind CloudFront CDN.
What is kantei.go.jp's SEO score?
kantei.go.jp scored 55/100 for SEO in the latest analysis (fair).
What is kantei.go.jp's overall website score?
kantei.go.jp has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.