syosetu.com
小説家になろう - みんなのための小説投稿サイト
Last scanned Jul 18, 2026, 8:49 PM
Overall score
Fair
Top issues to fix
11 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.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
+5 more issues — details in the sections below.
Summary
日本最大級のWeb小説投稿サイト「小説家になろう」。作品数100万以上、登録者数240万人以上、小説閲覧数月間25億PV以上。パソコン・スマートフォンのどれでも使え… This website uses Apache hosted on IDCF - IDC Frontier Inc., JP. SEO is fair (65/100) and accessibility is good (85/100). Security scores good (75/100) and performance good (85/100). Top issue: Title longer than 60 characters.
SEO
6 issue(s) found
Performance
408 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- 小説家になろう - みんなのための小説投稿サイト
- Description
- 日本最大級のWeb小説投稿サイト「小説家になろう」。作品数100万以上、登録者数240万人以上、小説閲覧数月間25億PV以上。パソコン・スマートフォンのどれでも使えて完全無料！
- Canonical
- Language
- ja
- Charset
- UTF-8
- Viewport
- width=1088, maximum-scale=1.0, user-scalable=yes
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- IDCF - IDC Frontier Inc., JP
- CDN provider
- —
- IP address
- 203.137.167.53
- ASN
- AS4694 (IDCF - IDC Frontier Inc., JP)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Cybertrust Japan Co., Ltd.
- Subject
- *.syosetu.com
- Valid from
- Oct 3, 2025
- Valid to
- Oct 21, 2026
- Days until expiry
- 94
- SAN domains
- *.syosetu.com, syosetu.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 10 · H3 47
Links
37 internal · 364 external · 0 broken
Images
45 total · 11 missing alt
Scripts / Styles
28 scripts · 3 stylesheets
JS / CSS size
2.1 MB · 114 KB
Page size
296 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 2
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Meta description longer than 160 characters
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- More than 20% of images are missing alt text
Scan details
- Requested URL
- https://syosetu.com
- Final URL
- https://syosetu.com
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 402 ms
- HTML size
- 296 KB
- Redirect chain
- https://syosetu.com
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Frequently asked questions
- What technology does syosetu.com use?
- syosetu.com is built with jQuery, Google Analytics, Apache.
- Is syosetu.com secure (HTTPS)?
- Yes. syosetu.com uses TLS 1.3 with a certificate issued by Cybertrust Japan Co., Ltd., valid until Oct 21, 2026.
- Who hosts syosetu.com?
- syosetu.com is hosted on IDCF - IDC Frontier Inc., JP.
- What is syosetu.com's SEO score?
- syosetu.com scored 65/100 for SEO in the latest analysis (fair).
- What is syosetu.com's overall website score?
- syosetu.com has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card