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Security report for uni-hamburg.de

Universität Hamburg · Education · Germany

Medium risk. 4 critical or high findings in GDPR outside view and Security headers.

Security score

65/100

Risk levelMedium

0–100, higher is better. How it is calculated

Universität Hamburg is a large, well-established public university in Germany, recognized as the largest research and education institution in Northern Germany with a strong excellence status. The website reflects a comprehensive digital presence with extensive content targeting students, researchers, faculty, and alumni. Technically, the site uses Apache on Ubuntu with Phusion Passenger and includes modern web technologies such as CSS3 and jQuery. However, the security posture is weakened by the lack of a valid SSL/TLS certificate and disabled TLS protocols, which exposes the site to risks and reduces trust. Privacy compliance is good with a comprehensive privacy policy, but no cookie consent mechanism was detected. Overall, the site is professional and trustworthy but requires urgent improvements in SSL configuration to enhance security and user trust.

Scanned

This is an earlier scan of uni-hamburg.de. View the latest report

NIS2 and GDPR posture

GDPR outside view
18/ 100 · Critical
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

4 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  2. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
50
Security headers
65
Email security
70
DNS health
85
Network security
100
GDPR outside view
18
Average
65

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The university operates in the education sector, offering a wide range of academic programs, research projects, and community services. It maintains partnerships with various research clusters and institutions, reflecting a strong collaborative ecosystem. The business model is public education and research funding, with a large target audience including students, researchers, and the public. The website supports this with detailed navigation, event information, and service links. The presence of multiple audits and certifications indicates a commitment to quality and compliance. Social media integration supports outreach and engagement. The university's market position is strong in Germany, especially in Northern Germany.

Security posture

The current security maturity level is moderate but compromised by critical issues such as the absence of a valid SSL certificate and disabled TLS protocols, which are fundamental for secure communications. Security headers are well implemented, including X-Frame-Options, X-Content-Type-Options, and Referrer-Policy, but the lack of HTTPS severely impacts the overall security posture. No incident response or vulnerability disclosure information is publicly available, indicating potential gaps in transparency and readiness. The site uses HttpOnly and SameSite cookie flags, which is positive. Overall, the security culture appears to be partially implemented but requires urgent attention to encryption and certificate management.

Recommendations

  1. Obtain and properly configure a valid SSL/TLS certificate to enable HTTPS across the entire site.
  2. Enable modern TLS protocols (TLS 1.2 and TLS 1.3) and disable all insecure protocols to protect data in transit.
  3. Implement a cookie consent mechanism to comply with privacy regulations and improve user trust.
  4. Publish a clear security policy and incident response contact information to enhance transparency and readiness.
  5. Regularly audit and update security headers and enable OCSP stapling and session resumption for improved security and performance.
Technical notes

Notes

The website is hosted on Apache 2.4.41 running on Ubuntu, using Phusion Passenger for application serving. It employs modern CSS and JavaScript, including jQuery, and uses web fonts loaded via WOFF2 and WOFF formats. The site is mobile responsive with good accessibility features and clear navigation. Performance metrics are not available, but the site appears moderately optimized. DNS records are properly configured with multiple MX and NS records and a valid SPF record, though DNSSEC and CAA are not enabled. The hosting is managed by the university's regional computing center. The lack of SSL/TLS is a significant technical risk. The site uses tracking pixels from etracker and piwik, indicating moderate user tracking.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

Earlier scans of this domain

  1. 65/100Medium32 findingsView report
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