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Security report for sunrise.ch

Sunrise GmbH · Telecommunications · Switzerland

Medium risk. 3 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

71/100

Risk levelMedium

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

Sunrise GmbH is a leading Swiss telecommunications provider offering a comprehensive range of services including mobile 5G subscriptions, high-speed internet up to 10 Gbit/s, TV and entertainment packages, and device sales featuring major brands like Apple and Samsung. The company targets both retail and business customers within Switzerland, emphasizing bundled offers and loyalty programs such as Sunrise Moments. The website reflects a mature digital presence with modern technologies, strong SEO, and comprehensive content tailored to its audience. Technically, the site is built on React and Next.js frameworks, leveraging a variety of third-party analytics and marketing tools including Google Tag Manager, OneTrust for consent management, TikTok and Facebook pixels, and Amazon Ads. Hosting is via Amazon CloudFront CDN, ensuring fast performance and global availability. The site is mobile-optimized and accessible, with structured data enhancing search engine visibility. From a security perspective, the website employs HTTPS with strong SSL configuration and several security headers, though it could benefit from additional headers like Content Security Policy and X-XSS-Protection. No critical vulnerabilities or exposed sensitive data were detected. Privacy compliance is robust, with clear privacy and cookie policies and active consent mechanisms. Overall, Sunrise GmbH demonstrates a strong security posture, excellent business credibility, and a well-implemented technical infrastructure. The site is professional, trustworthy, and compliant with relevant regulations, making it a reliable platform for customers and partners.

Scanned

NIS2 and GDPR posture

GDPR outside view
75/ 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

3 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

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

  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.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

  3. 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"

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

Keep watching sunrise.ch

This scan found 10 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

Email alerts on material changes and an exportable JSON history of every change.

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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
0
Security headers
80
Email security
85
DNS health
85
Network security
100
GDPR outside view
75
Average
71

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

Sunrise GmbH holds a prominent position in the Swiss telecommunications market, offering a broad portfolio of mobile, internet, TV, and device services. Its competitive advantages include extensive 5G coverage, attractive bundled offers, and a loyalty program that enhances customer retention. The business model combines subscription services with device sales, targeting both individual consumers and business clients. Revenue streams are diversified across mobile plans, internet subscriptions, entertainment packages, and hardware sales. The company maintains a strong partnership ecosystem, including affiliate marketing and community engagement platforms. Growth indicators include continuous promotional campaigns and integration of advanced technologies like AI-powered search (Perplexity Pro). Strategic observations highlight a focus on digital transformation, customer experience, and innovation in service offerings.

Security posture

Sunrise GmbH exhibits a mature security posture with enforced HTTPS, appropriate security headers, and no visible exposure of sensitive data. The use of a recognized consent management platform (OneTrust) aligns with GDPR requirements, enhancing privacy protection. The site integrates multiple third-party scripts for analytics and marketing, which are managed with user consent. While the X-XSS-Protection header is disabled, the presence of other headers and secure cookie practices mitigate common web vulnerabilities. No signs of malware, phishing, or critical security flaws were found. Incident response and security policy pages are not explicitly identified, suggesting an area for improvement. Overall, the security measures are adequate for a large telecommunications provider, but additional enhancements like CSP implementation would strengthen defenses.

Recommendations

  1. Implement a Content Security Policy (CSP) header to mitigate XSS and other injection attacks.
  2. Enable or configure X-XSS-Protection header or rely on modern browser protections.
  3. Publish explicit security policy and incident response information to enhance transparency.
  4. Regularly audit and update third-party scripts to ensure compliance and security.
  5. Enhance data protection officer contact visibility and vulnerability disclosure mechanisms.

Contact details published on the site

Addresses
Legal name
Sunrise GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sunrise GmbH
Description
Sunrise is a Swiss telecommunications company offering mobile, internet, TV, and entertainment services along with devices. It provides 5G mobile services, high-speed internet up to 10 Gbit/s, and various subscription plans with attractive discounts.
Key services
Mobile subscriptions with 5G, Internet subscriptions with high-speed options, TV and entertainment packages, Device sales including Apple and Samsung products, Loyalty program (Sunrise Moments)
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, OneTrust, Algolia, TikTok Pixel, Facebook Pixel, Amazon Ads, Sprinklr Live Chat, Decibel Insight, Tealium, Bing Ads, Exactag
Frameworks
Next.js, React
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • Use of HTTPS
  • Content Security Policy not explicitly found but other headers present
  • No exposed sensitive data found in HTML
  • Use of consent management for cookies
  • No vulnerable libraries detected from script sources

Analytics and tracking

Services
Google Analytics (via GTM), Microsoft Clarity, TikTok Analytics, Facebook Analytics, Decibel Insight, Exactag
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Amazon Ads, Bing Ads, Exactag
Tracking pixels
Facebook Pixel, TikTok Pixel, LinkedIn Insight, Twitter UWT, Microsoft Clarity, Decibel Insight
Marketing tools
Tealium
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 WAF or security blocks.
  2. Comprehensive privacy and cookie policies with active consent management.
  3. Strong presence of social media and contact information.
  4. Use of modern web technologies and frameworks.
  5. Extensive use of third-party analytics and marketing tools with proper consent.
  6. Good security headers but could improve with CSP and X-XSS-Protection.
  7. Clear business focus on telecommunications in Switzerland.
  8. High-quality content and professional design.
  9. Multiple promotional offers and product highlights.
  10. Use of structured data for SEO and rich snippets.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, supported by a robust CMS (Storyblok). It leverages a comprehensive set of analytics and marketing tools such as Google Tag Manager, TikTok Pixel, Facebook Pixel, and Amazon Ads, integrated with a consent management system (OneTrust) for GDPR compliance. Hosting is via Amazon CloudFront CDN, ensuring fast content delivery and scalability. The site is well-optimized for mobile devices and accessibility, with structured data (JSON-LD) for SEO. Performance is fast, and the site uses multiple CSS and JavaScript bundles for modularity. No technical debt or deprecated libraries were detected. The site could improve by adding more security headers and enhancing form security measures.
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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