d-nb.info
Oh noes!
Last scanned Jul 26, 2026, 5:17 AM · 2 views
Overall score
Great
Summary
This website uses Apache hosted on DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE. SEO is fair (65/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance good (80/100). Top issue: Missing meta description.
- Germany
- Hosted on DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
Top issues to fix
10 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.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Slow estimated load (4.4s)
PerformanceUse a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.
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.
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
4.45 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Meta tags
- Title
- Oh noes!
- Description
- Canonical
- Language
- en
- Charset
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- noindex,nofollow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- CDN provider
- —
- IP address
- 193.175.100.221
- ASN
- AS680 (DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE)
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
- portal.dnb.de
- Valid from
- Jul 22, 2026
- Valid to
- Feb 6, 2027
- Days until expiry
- 195
- SAN domains
- portal.dnb.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
1 internal · 3 external · 1 broken
Images
1 total · 0 missing alt
Scripts / Styles
5 scripts · 1 stylesheets
JS / CSS size
133 B · 191 KB
Page size
164 B
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 3
- 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
No accessibility issues detected.
Scan details
- Requested URL
- https://d-nb.info
- Final URL
- https://portal.dnb.de/index.htm
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 4.45 s
- HTML size
- 164 B
- Redirect chain
- https://d-nb.info → https://portal.dnb.de → http://portal.dnb.de/index.htm → https://portal.dnb.de/index.htm
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does d-nb.info use?
- d-nb.info is built with Apache.
- Is d-nb.info secure (HTTPS)?
- Yes. d-nb.info uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 6, 2027.
- Who hosts d-nb.info?
- d-nb.info is hosted on DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE.
- What is d-nb.info's SEO score?
- d-nb.info scored 65/100 for SEO in the latest analysis (fair).
- What is d-nb.info's overall website score?
- d-nb.info has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card