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SGSiteGraph

kotobank.jp

コトバンク [ 辞書・百科事典・各種データベースを一度に検索 ]

Last scanned Aug 2, 2026, 1:00 PM · 7 views

85

Overall score

Great

Summary

無料ウェブ百科事典。株式会社ビジネスアーキテクトが運営。出典が明確なコンテンツを収録し、信憑性の高さを重視する。. This website uses Nginx behind CloudFront CDN. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

無料ウェブ百科事典。株式会社ビジネスアーキテクトが運営。出典が明確なコンテンツを収録し、信憑性の高さを重視する。

Top issues to fix

9 issues found · 2 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 X-Content-Type-Options header

    Security

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

  • Title longer than 60 characters

    SEO

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

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

  • No structured data (JSON-LD) found

    SEO

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

+3 more issues — details in the sections below.

70

SEO

5 issue(s) found

100

Performance

293 ms

75

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 26, 2026

Overall
85
SEO
70
Security
75
Performance
100
Accessibility
100

Organization

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

無料ウェブ百科事典。株式会社ビジネスアーキテクトが運営。出典が明確なコンテンツを収録し、信憑性の高さを重視する。

Meta tags

Title
コトバンク [ 辞書・百科事典・各種データベースを一度に検索 ]
Description
無料ウェブ百科事典。株式会社ビジネスアーキテクトが運営。出典が明確なコンテンツを収録し、信憑性の高さを重視する。
Canonical
https://kotobank.jp/
Language
ja
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
コトバンク [ 辞書・百科事典・各種データベースを一度に検索 ]
og:description
無料ウェブ百科事典。株式会社ビジネスアーキテクトが運営。出典が明確なコンテンツを収録し、信憑性の高さを重視する。
og:type
website
og:url
https://kotobank.jp/

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

Nginx

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
kotobank.jp
Valid from
Oct 26, 2025
Valid to
Nov 24, 2026
Days until expiry
114
SAN domains
kotobank.jp, *.kotobank.jp

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

13 internal · 0 external · 13 broken

Images

0 total · 0 missing alt

Scripts / Styles

6 scripts · 2 stylesheets

JS / CSS size

95.1 KB · 0 B

Page size

101 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
  • Meta description longer than 160 characters
  • 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://kotobank.jp
Final URL
https://kotobank.jp
HTTP status
200
HTTP version
HTTP/2
Response time
291 ms
HTML size
101 KB
Redirect chain
https://kotobank.jp

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does kotobank.jp use?
kotobank.jp is built with Nginx.
Is kotobank.jp secure (HTTPS)?
Yes. kotobank.jp uses TLS 1.3 with a certificate issued by Amazon, valid until Nov 24, 2026.
Who hosts kotobank.jp?
Hosting provider information for kotobank.jp is not available yet.
What is kotobank.jp's SEO score?
kotobank.jp scored 70/100 for SEO in the latest analysis (fair).
What is kotobank.jp's overall website score?
kotobank.jp has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
Has kotobank.jp's score changed over time?
kotobank.jp's overall score has declined by 3 points (from 88 to 85) since Jul 26, 2026.