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Security report for swisscom.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 is a leading telecommunications provider in Switzerland offering a wide range of residential services including mobile subscriptions, internet, TV, devices, and insurance products. The website is professionally designed, well-branded, and targets residential customers with clear product offerings and promotions. The technical infrastructure is modern, leveraging Adobe Experience Manager, web components, and advanced tag management systems such as Tealium and Adobe Launch. The site is mobile optimized and performs well with good accessibility and SEO practices. Security posture is strong with HTTPS, security headers, and no visible vulnerabilities, though explicit security policies and incident response information are not publicly disclosed. Privacy compliance is robust with clear privacy and cookie policies and consent mechanisms. Overall, the website reflects a mature, trustworthy enterprise with a strong market position.

Scanned

This is an earlier scan of swisscom.ch. View the latest report

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 swisscom.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 operates in the telecommunications sector as an essential entity with an enterprise scale. It maintains a strong market position in Switzerland, offering bundled services and devices to residential customers. The business model focuses on subscription services and device sales, supported by a comprehensive digital presence. Partnerships with related domains such as bluewin.ch and myswisscom.ch enhance customer engagement and service delivery. The company demonstrates consistent branding and trust indicators, reinforcing its credibility in the market.

Security posture

The website exhibits a high level of security maturity with enforced HTTPS, comprehensive security headers, and secure handling of user interactions. No exposed sensitive data or vulnerable libraries were detected. However, the absence of publicly available security policies, incident response contacts, or vulnerability disclosure programs suggests room for improvement in transparency and readiness. Privacy compliance is well managed with consent mechanisms and GDPR-aligned policies. The overall security posture is strong but could benefit from enhanced communication of security governance.

Recommendations

  1. Publish a dedicated security policy and incident response page to improve transparency.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Provide contact details for a Data Protection Officer to enhance GDPR compliance.
  4. Regularly review and audit third-party scripts to mitigate potential vulnerabilities.
  5. Enhance data retention policy disclosures to build greater user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Swisscom AG
Description
Swisscom offers suitable offers and services for communication and entertainment around the clock to residential customers.
Key services
Mobile subscriptions, Internet subscriptions, TV subscriptions, Combo subscriptions, Devices and accessories, Insurance products
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript ES Modules, Adobe Experience Manager (AEM), React (likely), Tealium Tag Management, Adobe Launch (Tag Management), Cookielaw.org Consent Management, Web Components
Frameworks
Adobe Experience Manager
Platforms
Swisscom Portal, Tealium, Adobe DTM/Launch
Performance
fast
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
  • Secure forms with proper tracking
  • Consent management for cookies

Analytics and tracking

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

Advertising

Tracking pixels
Tealium, Adobe DTM/Launch, Cookielaw.org
Marketing tools
Tealium, Adobe Launch
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 product and service offerings for residential customers.
  3. Strong branding and consistent use of Swisscom identity.
  4. Use of modern web technologies and frameworks.
  5. Good privacy and cookie compliance with consent mechanisms.
  6. Clear contact information with dedicated sales hotline.
  7. No signs of phishing, malware, or suspicious activity.
  8. No explicit security or incident response policies publicly disclosed.
Technical notes

Notes

The website is built on Adobe Experience Manager, utilizing modern JavaScript modules and web components for a responsive and performant user experience. Integration with Tealium and Adobe Launch enables advanced tag management and analytics. The site is hosted on Swisscom infrastructure or CDN, ensuring reliability and speed. Accessibility and SEO optimizations are well implemented. The technical stack is modern and well-maintained, supporting the business needs effectively with minimal technical debt.
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. 80/100Low25 findingsView report
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