uni-due.de
Willkommen an der Universität Duisburg-Essen
Last scanned Jul 25, 2026, 12:25 PM · 2 views
Overall score
Great
Summary
This website uses PHP 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 (85/100) and performance excellent (90/100). Top issue: Missing meta description.
- Germany
- Hosted on DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE
Top issues to fix
9 issues found · 2 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 X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
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.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
+3 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
512 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Willkommen an der Universität Duisburg-Essen
- Description
- Canonical
- Language
- de-1996
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, shrink-to-fit=no
- Robots meta
- index,follow
- Manifest
- https://www.uni-due.de/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- CDN provider
- —
- IP address
- 134.91.197.147
- 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 1.2
- Issuer
- Hellenic Academic and Research Institutions CA
- Subject
- uni-due.de
- Valid from
- Nov 14, 2025
- Valid to
- Nov 14, 2026
- Days until expiry
- 111
- SAN domains
- uni-due.de, www.uni-due.de, www-restart.uni-duisburg-essen.de, uni-duisburg-essen.de, www.uni-duisburg-essen.de, www-restart.uni-due.de
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 5 · H2 19 · H3 0
Links
91 internal · 28 external · 3 broken
Images
42 total · 0 missing alt
Scripts / Styles
4 scripts · 3 stylesheets
JS / CSS size
710 KB · 825 KB
Page size
69.2 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 1
- sitemap.xml
- Found
- URLs in sitemap
- 5000
SEO issues
- Missing meta description
- Missing canonical link
- Multiple H1 headings found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
Accessibility issues
No accessibility issues detected.
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://uni-due.de
- Final URL
- https://www.uni-due.de/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 511 ms
- HTML size
- 69.2 KB
- Redirect chain
- https://uni-due.de → https://www.uni-due.de/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does uni-due.de use?
- uni-due.de is built with PHP, jQuery, Apache.
- Is uni-due.de secure (HTTPS)?
- Yes. uni-due.de uses TLS 1.2 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Nov 14, 2026.
- Who hosts uni-due.de?
- uni-due.de is hosted on DFN - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V., DE.
- What is uni-due.de's SEO score?
- uni-due.de scored 65/100 for SEO in the latest analysis (fair).
- What is uni-due.de's overall website score?
- uni-due.de has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
- Is uni-due.de hiring?
- uni-due.de has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card