sega-mj.com
セガNET麻雀 MJ | SEGA
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Great
Summary
『セガNET麻雀 MJ』はセガが運営するネットワーク対戦麻雀ゲームです。PCとiPhoneとAndroidで、いつでもどこでも手軽に対局可能！登録不要ですぐに遊べます。. This website uses Apache hosted on AWS. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
『セガNET麻雀 MJ』はセガが運営するネットワーク対戦麻雀ゲームです。PCとiPhoneとAndroidで、いつでもどこでも手軽に対局可能！登録不要ですぐに遊べます。
- United States
- Hosted on AWS
Top issues to fix
12 issues found · 2 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.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
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.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
+6 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
153 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
『セガNET麻雀 MJ』はセガが運営するネットワーク対戦麻雀ゲームです。PCとiPhoneとAndroidで、いつでもどこでも手軽に対局可能！登録不要ですぐに遊べます。
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- セガNET麻雀 MJ | SEGA
- Description
- 『セガNET麻雀 MJ』はセガが運営するネットワーク対戦麻雀ゲームです。PCとiPhoneとAndroidで、いつでもどこでも手軽に対局可能！登録不要ですぐに遊べます。
- Canonical
- Language
- ja
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- —
- IP address
- 35.76.78.49
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Amazon
- Subject
- *.sega-mj.com
- Valid from
- Nov 24, 2025
- Valid to
- Dec 22, 2026
- Days until expiry
- 119
- SAN domains
- *.sega-mj.com, sega-mj.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 2 cookie(s) observed
Content & assets
Headings
H1 2 · H2 7 · H3 0
Links
7 internal · 20 external · 3 broken
Images
64 total · 11 missing alt
Scripts / Styles
32 scripts · 6 stylesheets
JS / CSS size
300 KB · 44.4 KB
Page size
17.0 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
- Missing canonical link
- Multiple H1 headings found
- 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://sega-mj.com
- Final URL
- https://sega-mj.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 153 ms
- HTML size
- 17.0 KB
- Redirect chain
- https://sega-mj.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does sega-mj.com use?
- sega-mj.com is built with jQuery, Google Analytics, Google Ads, Apache.
- Is sega-mj.com secure (HTTPS)?
- Yes. sega-mj.com uses TLS 1.2 with a certificate issued by Amazon, valid until Dec 22, 2026.
- Who hosts sega-mj.com?
- sega-mj.com is hosted on AWS.
- What is sega-mj.com's SEO score?
- sega-mj.com scored 65/100 for SEO in the latest analysis (fair).
- What is sega-mj.com's overall website score?
- sega-mj.com has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card