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SGSiteGraph

nact.jp

国立新美術館 THE NATIONAL ART CENTER, TOKYO

Last scanned Aug 5, 2026, 4:00 AM · 20 views

90

Overall score

Excellent

Summary

This website uses Apache hosted on IIJ - Internet Initiative Japan Inc., JP. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing meta description.

Japan
Hosted on IIJ - Internet Initiative Japan Inc., JP

Top issues to fix

4 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.

  • 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.

75

SEO

3 issue(s) found

100

Performance

138 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+5 overall since Jul 27, 2026

Overall
90
SEO
75
Security
90
Performance
100
Accessibility
100

Organization

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

X (Twitter)InstagramFacebookYouTube

Meta tags

Title
国立新美術館 THE NATIONAL ART CENTER, TOKYO
Description
Canonical
Language
ja
Charset
utf-8
Viewport
width=device-width,initial-scale=1.0,minimum-scale=1.0,user-scalable=yes
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
国立新美術館 THE NATIONAL ART CENTER, TOKYO
og:description
—
og:type
website
og:url
https://www.nact.jp/

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

jQueryApache

Hosting & CDN

CDN provider
—
IP address
210.149.81.177
ASN
AS2497 (IIJ - Internet Initiative Japan Inc., JP)

DNS records

TypeValue
A
  • 210.149.81.177
AAAA—
MX
  • mx.securemx.jp
TXT
  • v=spf1 include:spf.securemx.jp include:asp.cuenote.jp ip4:202.222.215.7 ~all
  • MS=ms14621020
  • MS=FEFDFB688E533C06E6022F129A32E7EB74F76DD7
NS
  • ns013-0dr07ibqf2kh5pes.0.d-53.net
  • ns013-0dr07ibqf2kh5pes.0.d-53.info
  • ns013-0dr07ibqf2kh5pes.0.d-53.jp
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
GlobalSign nv-sa
Subject
*.nact.jp
Valid from
Mar 19, 2026
Valid to
Oct 4, 2026
Days until expiry
60
SAN domains
*.nact.jp, nact.jp

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 39 · H3 0

Links

81 internal · 12 external · 0 broken

Images

58 total · 0 missing alt

Scripts / Styles

10 scripts · 1 stylesheets

JS / CSS size

791 KB · 155 KB

Page size

44.4 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
157

SEO issues

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

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://nact.jp
Final URL
https://nact.jp
HTTP status
200
HTTP version
HTTP/2
Response time
138 ms
HTML size
44.4 KB
Redirect chain
https://nact.jp

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does nact.jp use?
nact.jp is built with jQuery, Apache.
Is nact.jp secure (HTTPS)?
Yes. nact.jp uses TLS 1.3 with a certificate issued by GlobalSign nv-sa, valid until Oct 4, 2026.
Who hosts nact.jp?
nact.jp is hosted on IIJ - Internet Initiative Japan Inc., JP.
What is nact.jp's SEO score?
nact.jp scored 75/100 for SEO in the latest analysis (fair).
What is nact.jp's overall website score?
nact.jp has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
Has nact.jp's score changed over time?
nact.jp's overall score has improved by 5 points (from 85 to 90) since Jul 27, 2026.