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Security report for deutsche-telekom.com

Deutsche Telekom AG · Telecommunications · Germany

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

Security score

73/100

Risk levelMedium

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

Deutsche Telekom AG operates a comprehensive corporate website providing detailed information about its integrated telecommunications services, corporate responsibility, investor relations, and innovation initiatives. The company is positioned as a leading global telecommunications provider with a strong focus on transparency and stakeholder engagement. The website infrastructure is built on modern web technologies with a custom CMS, leveraging nginx and Varnish caching, and hosted on AWS. While the site is well-structured, mobile-optimized, and rich in content, the current SSL certificate is invalid or missing, which significantly impacts the security posture. Security headers are properly configured, but the lack of valid HTTPS and modern TLS protocols is a critical vulnerability. Privacy and cookie policies are comprehensive and GDPR compliant, reflecting a mature privacy stance. Overall, the site demonstrates high professionalism and trustworthiness but requires urgent remediation of SSL issues to ensure secure user interactions.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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.

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

    • High

      Third-party services without privacy policy

      Detected services: LinkedIn, YouTube

      What to do: Document all third-party data sharing in your privacy policy

Need hands-on remediation? Email guard@offseq.com

Keep watching deutsche-telekom.com

This scan found 12 issues across 5 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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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
100
Security headers
80
Email security
50
DNS health
85
Network security
100
GDPR outside view
25
Average
73

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

Deutsche Telekom AG is a major player in the telecommunications sector, serving a global audience including investors, customers, and partners. The business model focuses on integrated telecom services, network infrastructure, and digital innovation. The company maintains a strong brand presence with consistent messaging and extensive corporate responsibility reporting. The website supports investor relations with detailed financial and governance information, indicating a transparent and well-governed enterprise. The presence of multiple social media channels and external partner links highlights a broad partnership ecosystem. The domain registration and WHOIS data confirm the legitimacy and consistency of the business identity.

Security posture

The website exhibits a mixed security posture. Positive aspects include the presence of key security headers such as X-Content-Type-Options, X-XSS-Protection, HSTS (though not fully enabled), and X-Frame-Options set to DENY. However, the SSL certificate is invalid or missing, and no modern TLS protocols are enabled, which is a critical security flaw. Cipher suites are not configured with strong algorithms, and OCSP stapling and session resumption are disabled. There is no evidence of a published vulnerability disclosure or incident response contact, which could be improved to enhance security transparency. Overall, the site requires immediate SSL remediation and enhancement of TLS configurations to meet modern security standards.

Recommendations

  1. Obtain and deploy a valid SSL/TLS certificate to enable HTTPS and secure communications.
  2. Enable TLS 1.2 and TLS 1.3 protocols and configure strong cipher suites to improve encryption strength.
  3. Fully enable HSTS with includeSubDomains and preload directives to enforce HTTPS usage.
  4. Implement OCSP stapling and session resumption to improve SSL performance and security.
  5. Publish a vulnerability disclosure policy and provide clear incident response contact information.
  6. Maintain and regularly audit security headers and privacy compliance to uphold trust.
Technical notes

Notes

The website uses a modern technology stack including nginx web server, Varnish caching, and a custom CMS platform. It employs JavaScript for dynamic content loading and uses WOFF fonts for typography. Hosting is on AWS as indicated by AWS load balancer cookies. The site is mobile-optimized and accessible with good SEO practices including meta tags and Open Graph data. Performance data is not available, but the use of caching and preloading fonts suggests optimization efforts. The site integrates third-party marketing and analytics tools such as Tealium. Technical risks include the invalid SSL certificate and lack of modern TLS support, which could impact user trust and search engine ranking.
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

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