pro-linux.de
Pro-Linux
Last scanned Aug 24, 2026, 1:21 PM · 1 view
Overall score
Fair
Summary
Magazin mit Schwerpunkten auf Open Source, Android und Linux. This website uses Apache hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is fair (70/100) and accessibility is good (85/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.
Magazin mit Schwerpunkten auf Open Source, Android und Linux. Angebote wie News, Artikel, Berichte, Workshops, Tipps, Kalender, Newsletter sowie ein Hilfeforum.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
Top issues to fix
11 issues found · 4 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.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
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.
+5 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
322 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
Magazin mit Schwerpunkten auf Open Source, Android und Linux. Angebote wie News, Artikel, Berichte, Workshops, Tipps, Kalender, Newsletter sowie ein Hilfeforum.
Contact
Email, phone, and address published on this site's own pages.
Source: https://www.pro-linux.de/contact
Meta tags
- Title
- Pro-Linux
- Description
- Magazin mit Schwerpunkten auf Open Source, Android und Linux. Angebote wie News, Artikel, Berichte, Workshops, Tipps, Kalender, Newsletter sowie ein Hilfeforum.
- Canonical
- Language
- de
- Charset
- utf-8
- Viewport
- Robots meta
- index, follow, noarchive
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 148.251.87.233
- 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
- pro-linux.de
- Valid from
- Jun 29, 2026
- Valid to
- Sep 27, 2026
- Days until expiry
- 34
- SAN domains
- dns.pro-linux.de, hjbaader.de, lindners.eu, mail.pro-linux.de, meet.pro-linux.de, plgpt.lindners.eu, pro-linux.de, prolinux.de, www.hjbaader.de, www.lindners.eu, www.pro-linux.de, www.prolinux.de
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 1
Links
95 internal · 2 external · 1 broken
Images
17 total · 0 missing alt
Scripts / Styles
10 scripts · 2 stylesheets
JS / CSS size
921 KB · 60.8 KB
Page size
45.0 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 82
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
Accessibility issues
- No H1 heading found
- Missing viewport meta tag
Careers
Scan details
- Requested URL
- https://pro-linux.de
- Final URL
- https://www.pro-linux.de/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 322 ms
- HTML size
- 45.0 KB
- Redirect chain
- https://pro-linux.de → https://www.pro-linux.de/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does pro-linux.de use?
- pro-linux.de is built with Google Ads, Apache.
- Is pro-linux.de secure (HTTPS)?
- Yes. pro-linux.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 27, 2026.
- Who hosts pro-linux.de?
- pro-linux.de is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is pro-linux.de's SEO score?
- pro-linux.de scored 70/100 for SEO in the latest analysis (fair).
- What is pro-linux.de's overall website score?
- pro-linux.de has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.
- Is pro-linux.de hiring?
- Yes. pro-linux.de has 5 open roles listed on their careers page.
OpenGraph & Twitter Card
OpenGraph
Twitter Card