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Security report for z-ag.ch

Z-AG Engineering · Energy · Switzerland

Low risk. 1 critical or high finding in SSL/TLS.

Security score

78/100

Risk levelLow

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

Z-AG Engineering, represented by Oeschgen AG, specializes in thermal process engineering with a focus on steam systems including planning, construction, and service of steam plants and boilers. The company targets industrial clients requiring expert solutions in energy and steam generation. The website is professionally designed, multilingual, and employs modern web technologies such as service workers and cookie consent mechanisms, reflecting a moderate to advanced digital maturity. Security posture is strong with HTTPS, security headers, and privacy compliance via Cookiebot. However, the absence of explicit security policies, incident response contacts, and terms of service pages suggests areas for improvement. Overall, the website presents a trustworthy and professional image with a low risk profile.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
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

1 finding rated critical or high. Fix these first.

  1. 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

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

Keep watching z-ag.ch

This scan found 19 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
62
Security headers
70
Email security
70
DNS health
85
Network security
100
GDPR outside view
83
Average
78

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 z-ag.ch, from OffSeq Breach.

No leaked records found

Breach holds no records for z-ag.ch right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

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 operates in the energy sector, providing specialized engineering services for steam generation systems. Its business model is B2B, focusing on industrial clients. The website content and metadata indicate a consistent brand and clear market positioning as experts in thermal processes. The use of multilingual support suggests an intent to serve a broader European market. The presence of analytics and marketing tools like SiteWit indicates active digital marketing efforts. No partnerships or subsidiaries are explicitly identified. The business appears small but specialized, with a focus on quality service delivery.

Security posture

The website enforces HTTPS with strong SSL configuration and includes standard security headers, enhancing protection against common web threats. Cookie consent is implemented with user opt-in, supporting GDPR compliance. No vulnerabilities or exposed sensitive data were detected in the provided content. The lack of a published security policy or incident response contact limits transparency in security governance. No vulnerability disclosure or security.txt file was found, which could be improved to foster trust and responsible vulnerability management.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and compliance.
  2. Add incident response contact information such as security@ or abuse@ email addresses.
  3. Implement and publish a vulnerability disclosure policy or security.txt file.
  4. Create a terms of service page to clarify user agreements and liabilities.
  5. Enhance accessibility features to improve compliance and user experience.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Z-AG Engineering
Description
Wir sind Ihre Experten rund um thermische Prozesse und kümmern uns um die Planung, den Bau und den Service von Dampfanlagen und Dampfkesseln.
Key services
Planning of steam systems, Construction of steam plants, Service and maintenance of steam boilers
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Service Workers, Cookiebot
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in mechanism
  • Service worker registration for PWA

Analytics and tracking

Services
SiteWit
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
SiteWit
Tracking pixels
Cookiebot
Marketing tools
Cookiebot, SiteWit analytics
Transparency
basic

Site quality

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

Key observations

  1. Website is multilingual with German as default language
  2. Cookie consent is implemented with detailed user options
  3. No visible contact emails or phone numbers in the HTML content provided
  4. No terms of service or explicit security policy pages found
  5. Use of service workers indicates modern web practices
  6. External scripts mostly related to cookie consent and analytics
  7. No suspicious or malicious content detected
Technical notes

Notes

The website uses modern web standards including HTML5, CSS, and JavaScript with service worker support for PWA capabilities. Cookiebot is used for cookie management and consent, indicating compliance with privacy regulations. Hosting appears to be via a website builder platform with CDN support, contributing to moderate performance. The site is mobile optimized and SEO friendly with proper meta tags and structured data. No major technical debts or deprecated technologies were identified. Opportunities exist to improve accessibility and add more explicit technical documentation.
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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