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Security report for telekom.com

Deutsche Telekom AG · Telecommunications · Germany

Low risk. 2 critical or high findings in GDPR outside view and SSL/TLS.

Security score

85/100

Risk levelLow

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

Deutsche Telekom AG is a leading global integrated telecommunications company headquartered in Germany, with a strong market position and a comprehensive portfolio of telecommunications and digital services. The corporate website provides extensive information about the company, including investor relations, corporate responsibility, compliance, and innovation initiatives such as AI projects. The site demonstrates a high level of digital maturity with modern web technologies, responsive design, and good SEO and accessibility practices. Security posture is strong, with HTTPS enforcement, security headers, and privacy compliance including GDPR adherence and cookie consent mechanisms. However, the absence of WHOIS registration data for the domain raises questions about domain registration transparency, though the website content and branding strongly support legitimacy. Overall, the site is professional, trustworthy, and well-maintained, serving a broad audience including customers, investors, and partners.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 100 · Low
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

2 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 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. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching telekom.com

This scan found 13 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • 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
80
Security headers
80
Email security
85
DNS health
85
Network security
100
GDPR outside view
80
Average
85

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 operates in the telecommunications sector as an essential enterprise entity, offering integrated telecom services including mobile, fixed networks, IT, and digital solutions. The company has a significant global presence with subsidiaries such as T-Systems and OTE. Its business model focuses on providing comprehensive telecom infrastructure and services to consumers and businesses. The website reflects a mature digital presence with strong branding consistency, extensive corporate and investor information, and active communication channels. Partnerships and subsidiaries are clearly referenced, supporting a robust ecosystem. The company emphasizes compliance, sustainability, and innovation, positioning itself as a market leader with a focus on AI and digital transformation.

Security posture

The website exhibits a mature security posture with HTTPS enforced, multiple security headers implemented, and no visible vulnerabilities or exposed sensitive data. Privacy compliance is well-managed with clear privacy and cookie policies and consent management tools. The presence of ISO 27001 certification indicates adherence to recognized security standards. However, the lack of explicit incident response contact information and absence of a security.txt file are areas for improvement. Overall, the security culture appears strong, but transparency in incident response and vulnerability disclosure could be enhanced.

Recommendations

  1. Publish explicit incident response and security contact information on the website.
  2. Implement and publish a security.txt file to facilitate vulnerability disclosures.
  3. Enhance transparency regarding the Data Protection Officer contact details.
  4. Regularly audit and update third-party scripts and tracking technologies to mitigate risks.
  5. Maintain and update compliance documentation to reflect evolving regulations and standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Deutsche Telekom AG
Description
Deutsche Telekom is one of the world's leading integrated telecommunications companies. Find information about the Group on our corporate website.
Key services
Telecommunications services, Mobile and fixed networks, IT services, Digital solutions
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, XMLHttpRequest, Web fonts (WOFF), Responsive images, Flickity carousel
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Security headers present
  • No exposed sensitive data in HTML
  • Consent management for cookies

Analytics and tracking

Services
Tealium
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Tealium
Marketing tools
Tealium Tag Management
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with rich content and multimedia
  2. Strong corporate branding and consistent messaging
  3. Comprehensive corporate responsibility and investor relations sections
  4. Good privacy and cookie compliance with consent management
  5. No signs of phishing, malware, or suspicious content
  6. WHOIS data missing or not found, which is unusual for a major corporate domain
Technical notes

Notes

The website uses modern web technologies including JavaScript, responsive images, web fonts, and a carousel library (Flickity). It appears to be built on a proprietary or custom CMS platform, with no common CMS detected. Performance is moderate with good mobile optimization and accessibility features. SEO is well-implemented with comprehensive meta tags and Open Graph data. The site integrates third-party services such as Tealium for tag management and analytics. Technical risks are minimal, but continuous monitoring of third-party dependencies is recommended to avoid vulnerabilities.
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. 77/100Low20 findingsView report
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