j-cast.com
J-CAST ニュース
Last scanned Aug 5, 2026, 10:00 AM · 7 views
Overall score
Great
Summary
ビジネスとメディアを独自の視点でウォッチ、日刊でニュースを提供。速報、特集、トピックス、新商品、読者コメントなど。. This website uses Google Ads. SEO is good (75/100) and accessibility is good (85/100). Security scores fair (70/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
ビジネスとメディアを独自の視点でウォッチ、日刊でニュースを提供。速報、特集、トピックス、新商品、読者コメントなど。
Top issues to fix
10 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
+4 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
850 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Score history
+1 overall since Jul 26, 2026
- Overall
- 82
- SEO
- 75
- Security
- 70
- Performance
- 100
- Accessibility
- 85
Organization
Company details published in this site's own structured data.
ビジネスとメディアを独自の視点でウォッチ、日刊でニュースを提供。速報、特集、トピックス、新商品、読者コメントなど。
Meta tags
- Title
- J-CAST ニュース
- Description
- ビジネスとメディアを独自の視点でウォッチ、日刊でニュースを提供。速報、特集、トピックス、新商品、読者コメントなど。
- Canonical
- https://www.j-cast.com/
- Language
- ja
- Charset
- UTF-8
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- GlobalSign nv-sa
- Subject
- *.j-cast.com
- Valid from
- Mar 11, 2026
- Valid to
- Apr 12, 2027
- Days until expiry
- 249
- SAN domains
- *.j-cast.com, j-cast.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 0 · H2 11 · H3 14
Links
62 internal · 20 external · 20 broken
Images
48 total · 1 missing alt
Scripts / Styles
33 scripts · 4 stylesheets
JS / CSS size
15.6 KB · 43.4 KB
Page size
135 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
- Missing viewport meta tag
Scan details
- Requested URL
- https://j-cast.com
- Final URL
- https://www.j-cast.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 848 ms
- HTML size
- 135 KB
- Redirect chain
- https://j-cast.com → https://www.j-cast.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does j-cast.com use?
- j-cast.com is built with jQuery, Google Ads.
- Is j-cast.com secure (HTTPS)?
- Yes. j-cast.com uses TLS 1.3 with a certificate issued by GlobalSign nv-sa, valid until Apr 12, 2027.
- Who hosts j-cast.com?
- Hosting provider information for j-cast.com is not available yet.
- What is j-cast.com's SEO score?
- j-cast.com scored 75/100 for SEO in the latest analysis (fair).
- What is j-cast.com's overall website score?
- j-cast.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
- Has j-cast.com's score changed over time?
- j-cast.com's overall score has improved by 1 point (from 81 to 82) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card