thalheim.io
Jörg Thalheim - NixOS Consulting
Last scanned Aug 24, 2026, 1:21 PM · 1 view
Overall score
Great
Summary
Expert NixOS consulting services by Dr. This website uses Nginx hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Expert NixOS consulting services by Dr. Jörg Thalheim (PhD). Specializing in Nix/NixOS infrastructure, DevOps automation, virtualization, and reproducible builds.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
Top issues to fix
8 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.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
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.
+2 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
155 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Expert NixOS consulting services by Dr. Jörg Thalheim (PhD). Specializing in Nix/NixOS infrastructure, DevOps automation, virtualization, and reproducible builds.
Contact
Email, phone, and address published on this site's own pages.
- joerg@thalheim.io
Meta tags
- Title
- Jörg Thalheim - NixOS Consulting
- Description
- Expert NixOS consulting services by Dr. Jörg Thalheim (PhD). Specializing in Nix/NixOS infrastructure, DevOps automation, virtualization, and reproducible builds.
- Canonical
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 135.181.61.171
- 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
- thalheim.io
- Valid from
- Aug 19, 2026
- Valid to
- Nov 17, 2026
- Days until expiry
- 84
- SAN domains
- *.devkid.net, *.lekwati.com, *.thalheim.io, devkid.net, lekwati.com, thalheim.io
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 4 · H3 22
Links
1 internal · 12 external · 0 broken
Images
1 total · 0 missing alt
Scripts / Styles
2 scripts · 1 stylesheets
JS / CSS size
1.8 KB · 12.0 KB
Page size
23.4 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 3
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://thalheim.io
- Final URL
- https://thalheim.io
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 155 ms
- HTML size
- 23.4 KB
- Redirect chain
- https://thalheim.io
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Frequently asked questions
- What technology does thalheim.io use?
- thalheim.io is built with Nginx.
- Is thalheim.io secure (HTTPS)?
- Yes. thalheim.io uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Nov 17, 2026.
- Who hosts thalheim.io?
- thalheim.io is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is thalheim.io's SEO score?
- thalheim.io scored 70/100 for SEO in the latest analysis (fair).
- What is thalheim.io's overall website score?
- thalheim.io has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card