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Security report for zeiss.com

ZEISS · Technology · Germany

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

Security score

72/100

Risk levelMedium

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

ZEISS is a globally recognized technology enterprise specializing in optics and optoelectronics, serving diverse sectors including vision care, medical technology, semiconductor manufacturing, industrial quality solutions, microscopy, and photography. The website reflects a mature digital presence with comprehensive content, multi-language support, and clear navigation tailored to a global audience. Technically, the site leverages Adobe Experience Manager CMS, modern JavaScript libraries, and implements responsive design and accessibility best practices. Security posture is strong with HTTPS enforced and secure data collection mechanisms, though explicit security headers and incident response information could be enhanced. Privacy compliance is well addressed with visible cookie consent and detailed privacy policies. The absence of WHOIS data is noted but likely due to registry privacy policies rather than malicious intent. Overall, ZEISS demonstrates a professional, trustworthy, and secure online presence aligned with its market leadership.

Scanned

This is an earlier scan of zeiss.com. 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.com

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.

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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Full report

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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
52
Security headers
50
Email security
80
DNS health
80
Network security
100
GDPR outside view
68
Average
72

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 zeiss.com, from OffSeq Breach.

Total records
5,659
Employees
146
Customers
5,098
Third parties
415
Weak passwords
12%

Latest record dated 2026-06-18 · 105 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for zeiss.com.

Select it in the checkout above.

Masked preview

  • –fs.zeiss.com2026-06-18
  • –fs.zeiss.com2026-06-18
  • –fs.zeiss.com2026-06-17
  • –myvisionprofile.zeiss.com2026-06-15
  • –fs.zeiss.com2026-06-13

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)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

ZEISS operates as an essential entity in the technology and healthcare sectors, offering advanced products and solutions across multiple industries. Its business model combines B2B and B2C approaches, targeting professionals and consumers alike. The company maintains a strong brand with consistent messaging and extensive product portfolios. Partnerships and subsidiaries such as Carl Zeiss Meditec AG support its market reach. The website's multi-regional structure and comprehensive product segmentation indicate strategic market positioning and customer segmentation. The use of advanced digital marketing and analytics tools suggests a data-driven approach to customer engagement and growth.

Security posture

The website exhibits a solid security foundation with HTTPS and secure form handling. No exposed sensitive data or vulnerable libraries were detected. However, the lack of explicit security headers like Content-Security-Policy and absence of a public incident response or vulnerability disclosure page represent areas for improvement. The cookie consent mechanism aligns with GDPR requirements, indicating awareness of privacy regulations. Overall, the security posture is good but could be strengthened by publishing more detailed security policies and incident response contacts.

Recommendations

  1. Implement and publish explicit security headers such as Content-Security-Policy and X-Frame-Options to enhance protection against common web attacks.
  2. Create and make accessible an incident response and vulnerability disclosure page to improve transparency and security readiness.
  3. Enhance visibility of security certifications and compliance frameworks to build greater trust with users and partners.
  4. Consider publishing contact information for the Data Protection Officer and security team to comply with GDPR and improve user confidence.
  5. Regularly audit and update third-party libraries and scripts to mitigate potential vulnerabilities and maintain a strong security posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ZEISS
Description
ZEISS is an international leading technology enterprise operating in the optics and optoelectronics industries.
Key services
Vision Care, Medical Technology, Semiconductor Manufacturing Technology, Industrial Quality Solutions, Research Microscopy Solutions, Photography and Cinematography
Content quality
excellent
Branding
consistent

Technology

Stack
Adobe Helix RUM, Google Tag Manager, Cookielaw.org cookie consent, SVG icons, Lazy loading images, Responsive design
Frameworks
Adobe Experience Manager (AEM)
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data found
  • Use of secure forms
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Cookielaw.org
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Content is comprehensive and targeted to multiple industry sectors.
  3. Multiple language versions and regional sites are linked.
  4. No signs of phishing or malware detected.
  5. No direct email addresses or phone numbers found in the main content; contact is via contact page.
  6. Cookie consent and privacy policies are implemented.
  7. Use of modern web technologies and analytics tools.
  8. WHOIS data is unavailable, which is unusual but not necessarily suspicious for a large corporation.
Technical notes

Notes

The website is built on Adobe Experience Manager, leveraging modern web technologies including asynchronous JavaScript loading, SVG icons, and lazy loading images for performance optimization. Google Tag Manager is used for analytics and marketing tracking, complemented by a cookie consent solution from cookielaw.org. The site is mobile-optimized with responsive design and accessibility features. Performance is moderate, with opportunities to improve load times and reduce script payloads. The technical infrastructure supports a global, multi-language audience with well-structured content and SEO-friendly metadata. Hosting details are not explicitly identified but the presence of Adobe Helix RUM suggests advanced monitoring capabilities.
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. 74/100 +1Medium29 findingsView report
  2. 73/100Medium29 findingsView report
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