skewed.de
Inverse Complexity Lab – Inverse Complexity Lab
Last scanned Jul 26, 2026, 11:19 AM
Overall score
Fair
Summary
This website uses Apache hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is fair (70/100) and accessibility is fair (70/100). Security scores good (75/100) and performance fair (60/100). Top issue: Missing meta description.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
Top issues to fix
9 issues found · 3 high priority
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.
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.
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.
+3 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
363 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
- Inverse Complexity Lab – Inverse Complexity Lab
- Description
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0, user-scalable=yes
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 49.12.93.194
- ASN
- AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
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
- skewed.de
- Valid from
- Jul 11, 2026
- Valid to
- Oct 9, 2026
- Days until expiry
- 72
- SAN domains
- *.skewed.de, skewed.de
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 2 · H2 2 · H3 4
Links
19 internal · 71 external · 0 broken
Images
10 total · 8 missing alt
Scripts / Styles
19 scripts · 14 stylesheets
JS / CSS size
4.7 MB · 1.4 MB
Page size
56.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- Multiple H1 headings found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://skewed.de
- Final URL
- https://skewed.de/lab/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 362 ms
- HTML size
- 56.5 KB
- Redirect chain
- https://skewed.de → https://skewed.de/lab → https://skewed.de/lab/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does skewed.de use?
- skewed.de is built with Apache.
- Is skewed.de secure (HTTPS)?
- Yes. skewed.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 9, 2026.
- Who hosts skewed.de?
- skewed.de is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is skewed.de's SEO score?
- skewed.de scored 70/100 for SEO in the latest analysis (fair).
- What is skewed.de's overall website score?
- skewed.de has an overall SiteGraph score of 69/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card