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Security report for opten.ch

OPTEN AG · Technology · Switzerland

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

60/100

Risk levelMedium

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

OPTEN AG is a Swiss-based professional .NET internet agency specializing in the development of custom web applications, eCommerce platforms, corporate websites, and digital business solutions. The company holds a recognized position in the market as an Umbraco Silver Partner, reflecting its technical expertise and commitment to quality. Their services encompass strategy, design, and development, targeting businesses seeking tailored digital transformation and software solutions. The website is well-structured, professionally designed, and optimized for mobile devices, providing a seamless user experience. Technically, the site leverages modern JavaScript libraries, Google reCAPTCHA for security, and the Umbraco CMS platform, indicating a mature digital infrastructure. Security posture is strong with HTTPS enforcement and appropriate security headers, although explicit security policies and incident response contacts are not published. Overall, the site demonstrates high professionalism, trustworthiness, and compliance with GDPR through clear privacy and cookie policies.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

5 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 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

  3. 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 Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

  4. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

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

Keep watching opten.ch

This scan found 20 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

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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
82
Security headers
65
Email security
57
DNS health
80
Network security
20
GDPR outside view
53
Average
60

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

OPTEN AG operates in the technology sector, focusing on custom software development and digital consulting. Their market positioning is strengthened by partnerships such as the Umbraco Silver Partner status and a portfolio of reputable clients including STIHL and Mercedes-Benz Automobil AG. The business model is service-oriented, providing end-to-end digital solutions from strategy to implementation. The target audience includes medium to large enterprises in need of bespoke web applications and eCommerce solutions. The company exhibits growth potential through its technical certifications and client references. The partnership ecosystem includes recognized technology providers and industry certifications, enhancing credibility and competitive advantage.

Security posture

The website demonstrates a mature security posture with HTTPS enabled and multiple security headers implemented, reducing common web vulnerabilities. The use of Google reCAPTCHA protects forms from automated abuse. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a dedicated security policy or incident response contact information limits transparency in security governance. There is no public vulnerability disclosure policy or security.txt file, which could be improved to foster responsible vulnerability reporting. Overall, the security maturity is good but could benefit from enhanced documentation and communication of security practices.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Add explicit incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  4. Regularly audit and update third-party libraries to mitigate potential vulnerabilities.
  5. Enhance transparency by providing data retention policies and detailed privacy compliance information.

Contact details published on the site

Addresses
Legal name
OPTEN AG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
OPTEN AG
Description
Als professionelle .NET Internetagentur für webbasierte Applikationen und Internetauftritte liegen unsere Kernkompetenzen in der Analyse, Planung und Umsetzung von komplexen Anforderungen.
Key services
Webapplikationen, eCommerce, Corporate Websites, Strategie, Design, Entwicklung
Content quality
excellent
Branding
consistent

Technology

Stack
.NET, Umbraco CMS, Google reCAPTCHA, GSAP, ScrollMagic, Swiper, PrismJS, MixItUp, Google Maps API, Vimeo Player API, LazySizes
Frameworks
Umbraco CMS
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA for forms
  • No exposed sensitive data in HTML
  • Use of security headers

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Google reCAPTCHA
Transparency
basic

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 professionally presented in German targeting Swiss business clients.
  3. Strong emphasis on custom software development and digital business solutions.
  4. Clear contact information and social media presence enhance trust.
  5. Use of modern web technologies and CMS (Umbraco) indicates technical maturity.
  6. Cookie banner and privacy policy indicate GDPR compliance.
  7. No explicit security policy or incident response page found.
  8. No vulnerability disclosure or security.txt present.
Technical notes

Notes

The website is built on a modern technology stack including Umbraco CMS, .NET framework, and various JavaScript libraries such as GSAP, ScrollMagic, and Swiper for enhanced user experience. Integration with Google services like reCAPTCHA and Maps API indicates robust third-party service usage. The site is mobile-optimized with responsive design and lazy loading for images, contributing to good performance. SEO is supported by comprehensive meta tags, Open Graph, and JSON-LD structured data. No significant technical debt or outdated technologies were observed. Hosting provider details are not explicitly identified. Overall, the technical infrastructure supports a professional and scalable digital presence.
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. 60/100Medium29 findingsView report
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