deutsche-digitale-bibliothek.de
Deutsche Digitale Bibliothek - Kultur und Wissen online
Last scanned Aug 2, 2026, 2:00 PM · 8 views
Overall score
Excellent
Summary
Die Deutsche Digitale Bibliothek ist das zentrale Portal für Kultur und Wissen. This website uses Drupal. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Die Deutsche Digitale Bibliothek ist das zentrale Portal für Kultur und Wissen. Sie macht das kulturelle Erbe der Bundesrepublik über das Internet zugänglich.
Top issues to fix
7 issues found
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
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.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+1 more issue — details in the sections below.
SEO
5 issue(s) found
Performance
268 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-1 overall since Jul 26, 2026
- Overall
- 91
- SEO
- 70
- Security
- 100
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Deutsche Digitale Bibliothek - Kultur und Wissen online
- Description
- Die Deutsche Digitale Bibliothek ist das zentrale Portal für Kultur und Wissen. Sie macht das kulturelle Erbe der Bundesrepublik über das Internet zugänglich.
- Canonical
- https://www.deutsche-digitale-bibliothek.de/
- Language
- de
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://www.deutsche-digitale-bibliothek.de/assets/favicon/ddb/ddb-a244b2bc5a91ee88ce2ac4aa946b9cc1.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- 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
- *.deutsche-digitale-bibliothek.de
- Valid from
- Jul 21, 2026
- Valid to
- Feb 5, 2027
- Days until expiry
- 186
- SAN domains
- *.deutsche-digitale-bibliothek.de, deutsche-digitale-bibliothek.de
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 18 · H3 33
Links
66 internal · 10 external · 20 broken
Images
45 total · 0 missing alt
Scripts / Styles
9 scripts · 3 stylesheets
JS / CSS size
3.2 KB · 0 B
Page size
121 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- 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-digitale-bibliothek.de
- Final URL
- https://www.deutsche-digitale-bibliothek.de/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 266 ms
- HTML size
- 121 KB
- Redirect chain
- https://deutsche-digitale-bibliothek.de → https://www.deutsche-digitale-bibliothek.de/
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Frequently asked questions
- What technology does deutsche-digitale-bibliothek.de use?
- deutsche-digitale-bibliothek.de is built with Drupal, Bootstrap.
- Is deutsche-digitale-bibliothek.de secure (HTTPS)?
- Yes. deutsche-digitale-bibliothek.de uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 5, 2027.
- Who hosts deutsche-digitale-bibliothek.de?
- Hosting provider information for deutsche-digitale-bibliothek.de is not available yet.
- What is deutsche-digitale-bibliothek.de's SEO score?
- deutsche-digitale-bibliothek.de scored 70/100 for SEO in the latest analysis (fair).
- What is deutsche-digitale-bibliothek.de's overall website score?
- deutsche-digitale-bibliothek.de has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
- Has deutsche-digitale-bibliothek.de's score changed over time?
- deutsche-digitale-bibliothek.de's overall score has declined by 1 point (from 92 to 91) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card