ruby-doc.org
Ruby-Doc.org: Documenting the Ruby Language
Last scanned Jul 26, 2026, 5:47 AM
Overall score
Great
Summary
Fast, searchable Ruby documentation for core and standard libraries. This website uses WordPress hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.
Fast, searchable Ruby documentation for core and standard libraries. Plus, links to tutorials, guides, books, and related sites.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
Top issues to fix
7 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.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
+1 more issue — details in the sections below.
SEO
3 issue(s) found
Performance
150 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Fast, searchable Ruby documentation for core and standard libraries. Plus, links to tutorials, guides, books, and related sites.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Ruby-Doc.org: Documenting the Ruby Language
- Description
- Fast, searchable Ruby documentation for core and standard libraries. Plus, links to tutorials, guides, books, and related sites.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- NOODP
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 65.109.142.99
- ASN
- AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- ruby-doc.org
- Valid from
- Jun 29, 2026
- Valid to
- Sep 27, 2026
- Days until expiry
- 62
- SAN domains
- ruby-doc.org, www.ruby-doc.org
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 1 · H2 3 · H3 0
Links
195 internal · 2 external · 0 broken
Images
1 total · 0 missing alt
Scripts / Styles
10 scripts · 7 stylesheets
JS / CSS size
222 KB · 48.4 KB
Page size
23.1 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 90
- sitemap.xml
- Found
- URLs in sitemap
- 1727
SEO issues
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://ruby-doc.org
- Final URL
- https://ruby-doc.org
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 150 ms
- HTML size
- 23.1 KB
- Redirect chain
- https://ruby-doc.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does ruby-doc.org use?
- ruby-doc.org is built with WordPress, jQuery, Google Analytics, Apache.
- Is ruby-doc.org secure (HTTPS)?
- Yes. ruby-doc.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 27, 2026.
- Who hosts ruby-doc.org?
- ruby-doc.org is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is ruby-doc.org's SEO score?
- ruby-doc.org scored 80/100 for SEO in the latest analysis (great).
- What is ruby-doc.org's overall website score?
- ruby-doc.org has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card