5ch.net
５ちゃんねる
Last scanned Jul 26, 2026, 5:17 AM · 2 views
Overall score
Fair
Summary
This website uses PHP hosted on Cloudflare behind Cloudflare CDN. SEO is fair (65/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
- United States
- Hosted on Cloudflare
Top issues to fix
10 issues found · 5 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 meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
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.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
+4 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
531 ms
Security
HTTPS & header checks
Accessibility
2 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.
Source: https://5ch.io/contact
Meta tags
- Title
- ５ちゃんねる
- Description
- Canonical
- https://5ch.io/
- Language
- ja
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, shrink-to-fit=no
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 172.67.70.191
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- 5ch.io
- Valid from
- Jul 2, 2026
- Valid to
- Sep 30, 2026
- Days until expiry
- 66
- SAN domains
- 5ch.io, *.5ch.io
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 1
Links
5 internal · 46 external · 7 broken
Images
19 total · 18 missing alt
Scripts / Styles
29 scripts · 3 stylesheets
JS / CSS size
396 KB · 213 KB
Page size
82.9 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 9
- sitemap.xml
- Found
- URLs in sitemap
- 38
SEO issues
- Missing meta description
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
Accessibility issues
- Over half of images are missing alt text
- No H1 heading found
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://5ch.net
- Final URL
- https://5ch.io/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 530 ms
- HTML size
- 82.9 KB
- Redirect chain
- https://5ch.net → https://5ch.io/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does 5ch.net use?
- 5ch.net is built with PHP, Bootstrap, jQuery, Google Analytics.
- Is 5ch.net secure (HTTPS)?
- Yes. 5ch.net uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 30, 2026.
- Who hosts 5ch.net?
- 5ch.net is hosted on Cloudflare, behind Cloudflare CDN.
- What is 5ch.net's SEO score?
- 5ch.net scored 65/100 for SEO in the latest analysis (fair).
- What is 5ch.net's overall website score?
- 5ch.net has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.
- Is 5ch.net hiring?
- 5ch.net has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card