nixos.org
Nix & NixOS | Declarative builds and deployments
Last scanned Jul 26, 2026, 4:25 AM · 2 views
Overall score
Excellent
Summary
Nix is a tool that takes a unique approach to package management and system configuration. This website uses Astro hosted on AWS behind Netlify CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Nix is a tool that takes a unique approach to package management and system configuration. Learn how to make reproducible, declarative and reliable systems.
- United States
- Hosted on AWS
Top issues to fix
4 issues found · 1 high priority
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.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
SEO
1 issue(s) found
Performance
66 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Nix is a tool that takes a unique approach to package management and system configuration. Learn how to make reproducible, declarative and reliable systems.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Nix & NixOS | Declarative builds and deployments
- Description
- Nix is a tool that takes a unique approach to package management and system configuration. Learn how to make reproducible, declarative and reliable systems.
- Canonical
- https://nixos.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width
- Robots meta
- index, follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA |
|
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- nixos.org
- Valid from
- Jul 4, 2026
- Valid to
- Oct 2, 2026
- Days until expiry
- 68
- SAN domains
- nixos.org, www.nixos.org
Security headers
- Strict-Transport-SecurityEnabled
- 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 10
Links
19 internal · 16 external · 0 broken
Images
2 total · 0 missing alt
Scripts / Styles
4 scripts · 3 stylesheets
JS / CSS size
186 KB · 86.0 KB
Page size
54.7 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://nixos.org
- Final URL
- https://nixos.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 65 ms
- HTML size
- 54.7 KB
- Redirect chain
- https://nixos.org
See something wrong on this report? Request a correction
Related websites
Same technology stack
hone.gg
Hone - Optimize Your PC For Gaming - FPS Booster
egsd.com
Ever Green Septic Design - Complete, Cutting Edge Solutions
atlan.com
Atlan - The Context Layer for AI
kinescope.io
Kinescope — Video Hosting & Streaming Platform | Business
vozpopuli.com
Vozpópuli - Noticias de última hora y actualidad
videoscribe.co
Explainer Videos That Hold Attention | Videoscribe
Same hosting provider
chronoseconds.com
Chronoseconds | Buy & Sell Pre-Owned Luxury Watches
taronga.org.au
Taronga Conservation Society Australia | Taronga Zoo
secureauth.com
SecureAuth | Continuous Identity Authority
highereducation.com
Home - Higher Education
byside.com
Composable Digital Experience Platform | CoreMedia CMS
surveyplanet.com
Free Online Survey Maker | Unlimited Surveys | Surveyplanet
Frequently asked questions
- What technology does nixos.org use?
- nixos.org is built with Astro.
- Is nixos.org secure (HTTPS)?
- Yes. nixos.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 2, 2026.
- Who hosts nixos.org?
- nixos.org is hosted on AWS, behind Netlify CDN.
- What is nixos.org's SEO score?
- nixos.org scored 90/100 for SEO in the latest analysis (excellent).
- What is nixos.org's overall website score?
- nixos.org has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card