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Security report for blue.ch

Swisscom AG · Telecommunications · Switzerland

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

Security score

75/100

Risk levelMedium

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

Swisscom AG operates a comprehensive and professional website offering blue TV subscriptions, streaming services, and telecommunications products primarily targeting residential customers in Switzerland. The company is a market leader in Swiss TV and telecommunications, providing a wide range of channels, sports, films, and series with additional streaming packages. The website reflects a mature digital infrastructure leveraging Adobe Experience Manager CMS, modern JavaScript frameworks, and advanced video streaming technologies. Privacy and cookie compliance are well implemented with clear policies and consent mechanisms. Security posture is strong with HTTPS, security headers, and no visible vulnerabilities. Contact information is clear, supporting customer engagement. Overall, the website demonstrates high professionalism, trustworthiness, and technical maturity.

Scanned

NIS2 and GDPR posture

GDPR outside view
58/ 100 · Medium
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. 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 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';…

  2. GDPR outside view

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

    • 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

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

Keep watching blue.ch

This scan found 18 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
90
Security headers
45
Email security
70
DNS health
85
Network security
100
GDPR outside view
58
Average
75

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

Swisscom AG holds a dominant position in the Swiss telecommunications and media market, offering subscription-based TV and streaming services. Their business model focuses on bundled offerings including internet, mobile, and TV subscriptions, supported by device sales and accessories. The company targets residential customers with tailored entertainment packages and premium streaming options. Partnerships with major streaming providers like Netflix, Disney+, and Prime Video enhance their service portfolio. The website's content and structure indicate a strong brand presence and customer-centric approach, supported by advanced digital marketing and analytics tools. Swisscom's enterprise scale and long history in the market reinforce its credibility and growth potential.

Security posture

The website exhibits a robust security posture with enforced HTTPS, comprehensive security headers (CSP, HSTS, X-Frame-Options), and secure login/logout mechanisms. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, explicit security policy pages and vulnerability disclosure mechanisms are absent, which could enhance transparency and incident response readiness. The use of third-party scripts is controlled with consent management, reducing privacy risks. Overall, the security maturity is high, suitable for a large telecommunications provider, but could benefit from formalized security documentation and public disclosure channels.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Add incident response contact information such as security@ or abuse@ email addresses.
  4. Regularly review and update third-party scripts and libraries to mitigate vulnerabilities.
  5. Enhance transparency on data retention and processing policies to strengthen privacy compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Swisscom AG
Description
Swisscom offers blue TV subscription with over 300 channels, live sports, films, and series tailored for residential customers in Switzerland.
Key services
TV subscriptions, Streaming services, Internet and mobile subscriptions, Device sales and accessories
Content quality
excellent
Branding
consistent

Technology

Stack
Adobe Experience Manager (AEM), JavaScript ES Modules, Web Components, Tealium (Tag Management), Adobe DTM (Dynamic Tag Management), Cookielaw.org Consent Management, Brightcove Video Player
Frameworks
Adobe Experience Manager
Platforms
Swisscom Portal
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of CSP headers
  • No exposed sensitive data in HTML
  • Secure login/logout URLs

Analytics and tracking

Services
Tealium, Adobe Analytics (via Adobe DTM)
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Tealium, Adobe DTM
Marketing tools
Tealium, Adobe DTM, Cookielaw.org Consent Management
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Comprehensive content about TV subscriptions and related services.
  3. Strong use of modern web technologies and video streaming.
  4. Clear contact and support information provided.
  5. Good privacy and cookie compliance with consent mechanisms.
  6. No signs of malicious or suspicious activity.
  7. Multiple streaming partners and additional package offers.
  8. Use of Adobe Experience Manager CMS and Tealium for analytics.
Technical notes

Notes

The website is built on Adobe Experience Manager, leveraging modern web technologies including ES modules, web components, and advanced video streaming via Brightcove CDN. Performance is optimized with preconnect and preload hints, and fonts are loaded efficiently. The site is mobile-optimized with responsive design and accessibility features such as skip links. SEO is supported by comprehensive meta tags, Open Graph, and Twitter cards. Analytics and tag management are handled via Tealium and Adobe DTM, integrated with consent management. Hosting appears to be on a robust CDN infrastructure ensuring fast content delivery. The technical stack reflects a mature, enterprise-grade digital platform with minimal technical debt and good modernization.
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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