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Security report for telekom.de

Deutsche Telekom AG · Telecommunications · Germany

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

61/100

Risk levelMedium

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

Deutsche Telekom AG operates the website www.telekom.de, providing a comprehensive range of telecommunications services including mobile telephony, fixed-line internet, fiber optic connections, and TV offerings under the MagentaTV brand. The website targets both private and business customers in Germany, positioning itself as a leading telecommunications provider with a strong market presence. The content is professionally presented, with clear navigation and a focus on current offers and customer services. Technically, the site employs modern web technologies such as React, uses advanced analytics and tag management tools like Dynatrace and Tealium, and demonstrates good mobile optimization and accessibility. Security posture is strong with HTTPS enforced and consent mechanisms for GDPR compliance implemented, although explicit privacy and security policies are not prominently linked. Overall, the domain registration data aligns well with the business identity, indicating a legitimate and trustworthy online presence.

Scanned

NIS2 and GDPR posture

GDPR outside view
45/ 100 · High
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

8 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

  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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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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Keep watching telekom.de

This scan found 23 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.

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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
57
Security headers
20
Email security
73
DNS health
70
Network security
100
GDPR outside view
45
Average
61

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention telekom.de, from OffSeq Breach.

Total records
603,434
Employees
428
Customers
26,843
Third parties
576,163
Weak passwords
31%

Latest record dated 2026-06-15 · 500 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for telekom.de.

Select it in the checkout above.

Masked preview

  • –www.telekom.de2026-06-15
  • –teltec.telekom.de2026-06-15
  • –fed.telekom.de2026-06-13
  • –teltec.telekom.de2026-06-12
  • –www.telekom.de2026-06-08

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

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

Business context

Business profile

The company holds a dominant position in the German telecommunications market, offering bundled services that include mobile, fixed-line, internet, and TV. The business model focuses on subscription-based revenue streams with targeted offers for different customer segments such as young users and families. The website integrates marketing and analytics tools to optimize customer engagement and conversion. Partnerships with content providers like Disney+ and Netflix enhance the value proposition. The company leverages its brand strength and extensive infrastructure to maintain competitive advantages. Growth indicators include promotional campaigns for new devices and tariff plans. The ecosystem includes related domains for cloud storage and sports streaming, reflecting a diversified service portfolio.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, use of security monitoring tools, and a robust cookie consent mechanism aligned with GDPR requirements. However, the absence of publicly accessible security policies, incident response contacts, and vulnerability disclosure mechanisms such as security.txt represents a gap in transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the analyzed content. Security headers appear to be partially implemented but could be explicitly verified and enhanced. Overall, the site maintains good security hygiene but would benefit from improved communication of security governance and incident handling procedures.

Recommendations

  1. Publish a clear and accessible privacy policy and terms of service on the website.
  2. Implement and link a security policy and incident response contact information to improve transparency.
  3. Add a security.txt file to facilitate responsible vulnerability disclosure.
  4. Ensure comprehensive security headers are configured and documented.
  5. Enhance user trust by providing visible certifications or compliance badges.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Deutsche Telekom AG
Description
Aktuelle Telekom Angebote für Mobilfunk (5G/LTE), Festnetz und Internet, TV & mehr. Alles aus einer Hand: für zuhause & unterwegs.
Key services
Mobilfunk (Mobile telephony), Festnetz (Fixed-line telephony), Internet, TV (MagentaTV), Glasfaser (Fiber optic internet)
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Dynatrace (ruxitagentjs), Tealium (tag management), Swiper (carousel), Custom fonts (TeleNeo)
Frameworks
React
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for cookies
  • No exposed sensitive data in HTML
  • Use of security monitoring scripts (Dynatrace)

Analytics and tracking

Services
Dynatrace, Tealium
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Tealium, Dynatrace
Marketing tools
Tealium Tag Manager, Dynatrace monitoring
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 no blocking or WAF challenges.
  2. Content is rich, professional, and well-structured.
  3. Strong focus on telecommunications products and services.
  4. Comprehensive cookie consent mechanism implemented.
  5. No explicit privacy policy or terms of service links found in the provided HTML snippet.
  6. Multiple external trusted domains used for analytics and marketing.
  7. No suspicious or malicious content detected.
  8. Security headers and SSL are properly configured.
  9. No direct contact emails found; phone numbers and contact forms are present.
  10. No explicit security or incident response policies published.
Technical notes

Notes

The website is built on a modern technology stack including React for frontend rendering, with extensive use of JavaScript and CSS for dynamic and responsive design. It integrates advanced analytics and tag management via Dynatrace and Tealium, indicating a high level of digital maturity. Performance appears optimized with preloading of images and modular script loading. Mobile optimization and accessibility features are well implemented, supporting a broad user base. The hosting environment is likely managed by Deutsche Telekom or associated providers, ensuring reliable infrastructure. Technical risks are minimal, but continuous monitoring of third-party scripts and dependencies is recommended to mitigate potential 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. 61/100 −10Medium33 findingsView report
  2. 71/100Medium23 findingsView report
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