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Security report for zeiss.nl

ZEISS · Technology · Netherlands

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

ZEISS Nederland is a regional branch of the internationally renowned ZEISS Group, specializing in optics and optoelectronics. The website presents a comprehensive portfolio of products and services spanning vision care, medical technology, semiconductor manufacturing, industrial quality solutions, microscopy, photography, and more. The site is professionally designed, mobile-optimized, and uses modern web technologies including Adobe Experience Manager and Google Tag Manager for analytics. While the site is secure with HTTPS and no visible vulnerabilities, it lacks explicit privacy and cookie policies on the main page, which could be improved for better GDPR compliance. Contact information is provided via a dedicated contact page, though no direct emails or phone numbers are visible on the homepage. Overall, the site reflects a mature, trustworthy corporate presence aligned with ZEISS's global brand.

Scanned

This is an earlier scan of zeiss.nl. View the latest report

NIS2 and GDPR posture

GDPR outside view
68/ 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.nl

This scan found 22 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
55
Email security
80
DNS health
70
Network security
100
GDPR outside view
68
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 operates in high-technology sectors including healthcare, manufacturing, and industrial metrology. The business model targets both B2B and B2C customers, offering advanced optical instruments and solutions. The company holds a strong market position as a technology leader with a broad product portfolio. The website links extensively to international ZEISS domains, indicating a well-integrated global network. The Benelux organization serves as a sales and service center with no production facilities, emphasizing customer support and training. The presence of partnerships and references to prestigious clients and awards further reinforce business credibility.

Security posture

The website employs HTTPS and modern JavaScript frameworks, with no apparent exposed sensitive data or vulnerable libraries. However, the absence of explicit security headers and a published security policy or incident response contact reduces the overall security maturity. No vulnerability disclosure or security.txt files were found. The site uses Google Tag Manager for analytics, implying moderate user tracking. Enhancing security headers and publishing clear security and privacy policies would strengthen the security posture and compliance.

Recommendations

  1. Publish a clear and accessible privacy policy and cookie policy linked in the website footer.
  2. Implement and configure security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection.
  3. Provide a dedicated security policy page including incident response contact information.
  4. Add a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  5. Enhance cookie consent mechanisms to ensure GDPR compliance and user transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ZEISS
Description
ZEISS is een internationaal toonaangevend, technologisch bedrijf werkzaam in de optica en opto-elektronische industrie. Het bedrijf biedt oplossingen in onder andere microscopie, industriële metrologie, medische technologie, brillenglazen, cameralenzen, verrekijkers en telescopen.
Key services
Vision Care, Medical Technology, Semiconductor Manufacturing Technology, Industrial Quality Solutions, Research Microscopy, Photography & Cinematography, Hunting & Nature Observation, Projection Solutions for Simulations and Planetariums, Spectroscopy and OEM Solutions, Digital Solutions
Content quality
excellent
Branding
consistent

Technology

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

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No visible exposed sensitive data
  • Use of Google Tag Manager with consent scripts
  • No vulnerable libraries detected in scripts

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

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 Dutch language targeting the Netherlands market.
  3. Strong brand presence with consistent use of ZEISS logos and references.
  4. Multiple international ZEISS domains linked, indicating a global corporate network.
  5. No explicit privacy or cookie policies found on the main page; may be located elsewhere or require deeper crawl.
  6. Contact information is provided via a contact page link but no direct emails or phone numbers found on the main page.
  7. Use of modern web technologies and Adobe Experience Manager CMS.
  8. Good SEO and accessibility practices observed.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on Adobe Experience Manager CMS, leveraging modern front-end technologies including SVG icons, lazy loading images, and modular JavaScript. Google Tag Manager is used for analytics and marketing tags. The site is mobile-optimized and accessible, with good SEO metadata and structured data (JSON-LD) for organization and breadcrumbs. Performance is moderate, with some prefetching and asynchronous script loading. No major technical debt or outdated libraries were detected. Hosting provider details are not explicit in the content but the infrastructure appears robust and professionally managed.
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. 74/100Medium30 findingsView report
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