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SGSiteGraph

itmedia.co.jp

IT���������|�[�^���uITmedia�vHome

Last scanned Jul 30, 2026, 11:00 AM · 10 views

90

Overall score

Excellent

Summary

�e�N�m���W�[�֘A�̃j���[�X�y�ё����𒆐S�ɁA���r���[�����W�L�����f�ځB. This website uses Nginx behind CloudFront CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.

�e�N�m���W�[�֘A�̃j���[�X�y�ё����𒆐S�ɁA���r���[�����W�L�����f�ځB

Top issues to fix

6 issues found · 1 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 X-Content-Type-Options header

    Security

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

  • No structured data (JSON-LD) found

    SEO

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

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 20 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

80

SEO

3 issue(s) found

100

Performance

269 ms

85

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 21, 2026

Overall
90
SEO
80
Security
85
Performance
100
Accessibility
100

Organization

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

�e�N�m���W�[�֘A�̃j���[�X�y�ё����𒆐S�ɁA���r���[�����W�L�����f�ځB

Meta tags

Title
IT���������|�[�^���uITmedia�vHome
Description
�e�N�m���W�[�֘A�̃j���[�X�y�ё����𒆐S�ɁA���r���[�����W�L�����f�ځB
Canonical
https://www.itmedia.co.jp/
Language
ja
Charset
shift_jis
Viewport
width=device-width
Robots meta
noydir
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
IT���������|�[�^���uITmedia�vHome
og:description
�e�N�m���W�[�֘A�̃j���[�X�y�ё����𒆐S�ɁA���r���[�����W�L�����f�ځB
og:type
website
og:url
https://www.itmedia.co.jp/

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

Google AnalyticsMeta PixelNginx

Hosting & CDN

Hosting provider
—
CDN provider
CloudFront
IP address
—
ASN
—

DNS records

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

TLS / SSL certificate

Version
TLS 1.3
Issuer
Amazon
Subject
itmedia.co.jp
Valid from
May 18, 2026
Valid to
Dec 1, 2026
Days until expiry
124
SAN domains
itmedia.co.jp, *.itmedia.co.jp, *.atmarkit.itmedia.co.jp, *.sys.itmedia.co.jp, *.ips.itmedia.co.jp, *.techfactory.itmedia.co.jp, *.office.itmedia.co.jp, *.kn.itmedia.co.jp, *.executive.itmedia.co.jp, *.marketing.itmedia.co.jp, *.cms.itmedia.co.jp, *.techtarget.itmedia.co.jp, *.api.itmedia.co.jp, *.ips.sys.itmedia.co.jp

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 4 · H3 140

Links

177 internal · 61 external · 20 broken

Images

16 total · 0 missing alt

Scripts / Styles

48 scripts · 3 stylesheets

JS / CSS size

15.0 KB · 0 B

Page size

102 KB

Robots.txt & Sitemap

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

SEO issues

  • 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://itmedia.co.jp
Final URL
https://www.itmedia.co.jp/
HTTP status
200
HTTP version
HTTP/2
Response time
267 ms
HTML size
102 KB
Redirect chain
https://itmedia.co.jp → https://www.itmedia.co.jp/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does itmedia.co.jp use?
itmedia.co.jp is built with Google Analytics, Meta Pixel, Nginx.
Is itmedia.co.jp secure (HTTPS)?
Yes. itmedia.co.jp uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 1, 2026.
Who hosts itmedia.co.jp?
Hosting provider information for itmedia.co.jp is not available yet.
What is itmedia.co.jp's SEO score?
itmedia.co.jp scored 80/100 for SEO in the latest analysis (great).
What is itmedia.co.jp's overall website score?
itmedia.co.jp has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
Has itmedia.co.jp's score changed over time?
itmedia.co.jp's overall score has declined by 3 points (from 93 to 90) since Jul 21, 2026.