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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

73/100

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, and industrial quality solutions. The website reflects a mature digital presence with comprehensive product and corporate information, multilingual support, and a professional design consistent with enterprise standards. The technical infrastructure leverages Adobe Experience Manager CMS, modern JavaScript frameworks, and responsive design principles, ensuring good performance and accessibility. Security posture is strong with HTTPS enforced and no visible vulnerabilities, though security headers could be enhanced. Privacy compliance is well addressed with clear privacy and cookie policies and consent mechanisms. The absence of WHOIS data reduces transparency but does not detract from the site's legitimacy given the corporate branding and extensive content. Overall, ZEISS's website demonstrates a high level of digital maturity and trustworthiness.

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 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

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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
55
Email security
80
DNS health
80
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

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 a broad portfolio of products and solutions that cater to both professional and consumer markets worldwide. The company maintains a strong market position as a leader in optics and optoelectronics, supported by a global network of regional websites and related domains. The business model includes B2B and B2C components, with key services spanning vision care, medical devices, semiconductor equipment, and microscopy solutions. The website's structured data and multilingual capabilities indicate a strategic focus on global reach and customer engagement. While WHOIS data is unavailable, the brand's reputation and comprehensive online presence suggest a stable and established operation.

Security posture

The website employs HTTPS with an excellent SSL configuration, ensuring secure data transmission. No exposed sensitive information or vulnerable libraries were detected in the HTML content. The presence of privacy and cookie policies with consent mechanisms aligns with GDPR requirements. However, the site lacks explicit security headers such as Content-Security-Policy and X-Frame-Options, which are recommended to mitigate certain web-based attacks. Incident response contacts and vulnerability disclosure mechanisms are not prominently available, representing an area for improvement. Overall, the security posture is strong but could benefit from enhanced header implementation and clearer incident response channels.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen web security.
  2. Publish a security.txt file and clearly display incident response contact information to improve vulnerability disclosure and response readiness.
  3. Regularly audit and update third-party scripts and libraries to prevent potential vulnerabilities.
  4. Maintain accurate and publicly accessible WHOIS records to enhance transparency and trust.
  5. Continue to monitor and improve privacy compliance, ensuring all data collection practices are clearly communicated and consented.
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, Hunting and Nature Observation, Simulation Projection Solutions, Spectroscopy and OEM Solutions, Digital Solutions
Content quality
excellent
Branding
consistent

Technology

Stack
Adobe Helix RUM, Google Tag Manager, JavaScript, SVG icons, Lazy loading images, Responsive design, HTML5, CSS3
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 in HTML
  • Use of secure cookies and consent mechanisms

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
OneTrust Cookie Consent
Marketing tools
OneTrust Cookie Consent
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and multiple language support
  2. No WAF or blocking detected
  3. WHOIS data unavailable, possibly due to privacy or registry issues
  4. Strong corporate branding and structured data usage
  5. Good privacy and cookie compliance with consent mechanisms
  6. No exposed sensitive data or obvious vulnerabilities in HTML content
  7. Use of modern web technologies and CMS (Adobe Experience Manager)
  8. Multiple external domains are official ZEISS regional sites
  9. No suspicious or malicious links detected
Technical notes

Notes

The website is built on Adobe Experience Manager CMS, utilizing modern web technologies such as JavaScript, SVG icons, and lazy loading for images. It integrates Google Tag Manager for analytics and OneTrust for cookie consent management. The site is responsive and optimized for mobile devices, with good SEO practices including meta tags and structured data (JSON-LD). Performance is moderate, with potential for optimization in loading speed. Accessibility features are present but could be further enhanced. The technical infrastructure supports a professional and scalable digital presence suitable for a global enterprise.
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 +2Medium29 findingsView report
  2. 72/100Medium30 findingsView report
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