deutsche-biographie.de
Deutsche Biographie
Last scanned Jul 26, 2026, 1:49 PM · 1 view
Overall score
Great
Summary
Zertifiziertes Wissen zu mehr als 1.000.000 Persönlichkeiten des deutschen Sprachraums vom frühen Mittelalter bis zur Gegenwart. This website uses jQuery. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (90/100). Top issue: Missing canonical link.
Zertifiziertes Wissen zu mehr als 1.000.000 Persönlichkeiten des deutschen Sprachraums vom frühen Mittelalter bis zur Gegenwart.
Top issues to fix
7 issues found · 2 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.
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.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+1 more issue — details in the sections below.
SEO
5 issue(s) found
Performance
529 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Zertifiziertes Wissen zu mehr als 1.000.000 Persönlichkeiten des deutschen Sprachraums vom frühen Mittelalter bis zur Gegenwart.
Meta tags
- Title
- Deutsche Biographie
- Description
- Zertifiziertes Wissen zu mehr als 1.000.000 Persönlichkeiten des deutschen Sprachraums vom frühen Mittelalter bis zur Gegenwart.
- Canonical
- Language
- de
- Charset
- UTF-8
- Viewport
- width=device-width
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- 138.246.102.22
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Hellenic Academic and Research Institutions CA
- Subject
- www.deutsche-biographie.de
- Valid from
- Oct 14, 2025
- Valid to
- Oct 14, 2026
- Days until expiry
- 77
- SAN domains
- www.deutsche-biographie.de, www.allgemeine-deutsche-biographie.de, deutsche-biographie.de, www.neue-deutsche-biographie.de, allgemeine-deutsche-biographie.de, www.deutsche-biografie.de, neue-deutsche-biographie.de, deutsche-biografie.de
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 0
Links
31 internal · 1 external · 0 broken
Images
8 total · 0 missing alt
Scripts / Styles
17 scripts · 15 stylesheets
JS / CSS size
671 KB · 342 KB
Page size
21.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://deutsche-biographie.de
- Final URL
- https://www.deutsche-biographie.de/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 529 ms
- HTML size
- 21.5 KB
- Redirect chain
- https://deutsche-biographie.de → https://www.deutsche-biographie.de/
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Frequently asked questions
- What technology does deutsche-biographie.de use?
- deutsche-biographie.de is built with Bootstrap, jQuery.
- Is deutsche-biographie.de secure (HTTPS)?
- Yes. deutsche-biographie.de uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Oct 14, 2026.
- Who hosts deutsche-biographie.de?
- Hosting provider information for deutsche-biographie.de is not available yet.
- What is deutsche-biographie.de's SEO score?
- deutsche-biographie.de scored 70/100 for SEO in the latest analysis (fair).
- What is deutsche-biographie.de's overall website score?
- deutsche-biographie.de has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card