rechenkraft.net
Rechenkraft.net
Last scanned Aug 24, 2026, 1:21 PM
Overall score
Fair
Summary
This website uses Apache hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is fair (65/100) and accessibility is good (80/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing meta description.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
Top issues to fix
10 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.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
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.
+4 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
246 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Rechenkraft.net
- Description
- Canonical
- Language
- de
- Charset
- UTF-8
- Viewport
- Robots meta
- all
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 116.203.62.4
- 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
- rechenkraft.net
- Valid from
- Jul 26, 2026
- Valid to
- Oct 24, 2026
- Days until expiry
- 60
- SAN domains
- rechenkraft.net, www.rechenkraft.net
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 1 · H3 11
Links
29 internal · 6 external · 0 broken
Images
9 total · 2 missing alt
Scripts / Styles
2 scripts · 0 stylesheets
JS / CSS size
89.8 KB · 23 B
Page size
19.4 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 25
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- More than 20% of images are missing alt text
- Missing viewport meta tag
Scan details
- Requested URL
- https://rechenkraft.net
- Final URL
- https://www.rechenkraft.net/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 246 ms
- HTML size
- 19.4 KB
- Redirect chain
- https://rechenkraft.net → https://www.rechenkraft.net/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does rechenkraft.net use?
- rechenkraft.net is built with Apache.
- Is rechenkraft.net secure (HTTPS)?
- Yes. rechenkraft.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 24, 2026.
- Who hosts rechenkraft.net?
- rechenkraft.net is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is rechenkraft.net's SEO score?
- rechenkraft.net scored 65/100 for SEO in the latest analysis (fair).
- What is rechenkraft.net's overall website score?
- rechenkraft.net has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card