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Security report for zeiss.si

Carl Zeiss d.o.o. · Technology · Slovenia

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

73/100

Risk levelMedium

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

Carl Zeiss d.o.o., operating as ZEISS Slovenija, is a medium-sized subsidiary of the global Carl Zeiss GmbH group, specializing in optics and optoelectronics with a strong presence in technology, healthcare, and manufacturing sectors. The company offers a broad portfolio including vision care, medical technology, semiconductor manufacturing technology, industrial quality solutions, microscopy, photography, cinematography, hunting optics, simulation projection solutions, spectroscopy, OEM solutions, and digital innovations. The website reflects a mature digital infrastructure built on Adobe Experience Manager, hosted via Akamai, and employs modern web technologies with good SEO, accessibility, and mobile optimization. Security posture is strong with HTTPS, security headers, and no visible vulnerabilities. Privacy and compliance policies are present and GDPR compliant. Contact information is available primarily via contact pages rather than direct emails or phone numbers on the homepage. Social media presence includes Facebook and LinkedIn. Overall, the website and domain registration data align well with the corporate identity, indicating a trustworthy and professional online presence.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 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 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 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
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching zeiss.si

This scan found 21 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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Full report

€39.90one-time

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  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
55
Email security
80
DNS health
70
Network security
100
GDPR outside view
73
Average
73

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

ZEISS Slovenija holds a strong market position as part of the Carl Zeiss group, leveraging decades of expertise and a diversified product portfolio targeting industrial, medical, and consumer optics markets. The business model focuses on high-precision manufacturing, research, and development, with a global footprint supported by localized subsidiaries. The company benefits from a reputable brand, extensive compliance frameworks, and a broad ecosystem of related domains and product lines. Growth indicators include digital innovation and expansion into software solutions. Partnerships and global reach are evident through multiple international domain links and product segment websites.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and no exposed sensitive data. There is no explicit incident response or vulnerability disclosure information publicly available, which could be improved. Privacy compliance is well addressed with cookie consent mechanisms and detailed privacy policies. The absence of direct contact emails or phone numbers on the homepage reduces attack surface but may impact user convenience. Overall, the security culture appears robust but could benefit from enhanced transparency on incident handling and vulnerability reporting.

Recommendations

  1. Publish explicit incident response and security contact information to improve transparency and trust.
  2. Implement and publicize a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  3. Enhance visibility of security certifications or compliance badges on the website to reinforce trust.
  4. Consider adding direct, verified company contact emails and phone numbers in a secure manner to improve user support.
  5. Regularly review and update third-party scripts and tracking tools to minimize privacy risks and maintain compliance.

Contact details published on the site

Addresses
Legal name
Carl Zeiss d.o.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Carl Zeiss d.o.o.
Description
ZEISS je mednarodno dejaven tehnološki koncern optične in optoelektronske industrije. Podjetje prispeva h tehnološkemu napredku že več kot 175 let z razvijanjem rešitev za polprevodnike, avtomobilsko in mehansko industrijo, biomedicinske raziskave in medicinsko tehnologijo, leče za očala, kamere in kinematografske aparate, daljnoglede in planetarije.
Key services
Vision Care, Medicinska tehnologija, Tehnologija proizvodnje polprevodnikov, Industrial Quality Solutions, Rešitve za raziskovalno mikroskopijo, Fotografija in kinematografija, Lovstvo in opazovanje narave, Simulacijsko projekcijske rešitve in planetariji, Spektroskopija in OEM rešitve, Digitalne rešitve
Content quality
good
Branding
consistent

Technology

Stack
Adobe Helix RUM, Google Tag Manager, SVG icons, JavaScript ES6 modules
Frameworks
Adobe Experience Manager (AEM)
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of CSP and other headers
  • Secure forms with POST and charset

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
OneTrust Cookie Consent
Marketing tools
OneTrust
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content.
  2. Corporate branding and messaging are consistent.
  3. Multiple language alternates present indicating global presence.
  4. Use of modern web technologies and CMS.
  5. Good SEO and accessibility practices observed.
  6. No signs of phishing, malware, or suspicious activity.
  7. Contact information is present but no direct emails or phone numbers found on main page.
  8. Social media presence on Facebook and LinkedIn confirmed.
Technical notes

Notes

The website is built on Adobe Experience Manager, leveraging modern JavaScript modules, SVG icons, and asynchronous loading of scripts such as Google Tag Manager and OneTrust for cookie consent. Hosting is via Akamai CDN, ensuring global performance and availability. The site is mobile optimized with responsive design and accessibility features such as skip links and ARIA labels. SEO is supported by meta tags, Open Graph data, and structured JSON-LD for breadcrumbs and organization. Performance is moderate, with preloading of fonts and lazy loading of images. No critical technical debt or vulnerabilities were detected, but continuous monitoring is recommended to maintain security and performance.
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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