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Security report for zeiss.de

ZEISS · Technology · Germany

Medium risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

75/100

Risk levelMedium

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

ZEISS is a globally recognized technology company specializing in optical and optoelectronic industries, with a strong market position and enterprise scale. The website reflects a mature digital infrastructure leveraging Adobe Experience Manager CMS and Akamai CDN, ensuring good performance, mobile optimization, and accessibility. Security posture is robust with HTTPS, security headers, and cookie consent mechanisms, although explicit security policies and incident response contacts are not publicly available. Overall, the site demonstrates professionalism and trustworthiness suitable for its industry and audience.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 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

3 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. 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.de

This scan found 22 issues across 5 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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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
47
Security headers
50
Email security
80
DNS health
70
Network security
100
GDPR outside view
100
Average
75

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.de, from OffSeq Breach.

Total records
226
Employees
0
Customers
211
Third parties
15
Weak passwords
29%

14 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.de.

Select it in the checkout above.

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

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 the technology and energy sectors, targeting both B2B and B2C customers interested in advanced optical solutions. The business model focuses on manufacturing and providing high-tech optical and optoelectronic products and services. The website supports multiple languages and regional domains, indicating a broad international presence. The company maintains strong branding consistency and trust signals but could enhance transparency by publishing detailed privacy, security, and compliance information.

Security posture

The website employs strong security best practices including HTTPS enforcement, Content Security Policy, and cookie consent via OneTrust. No vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of a public security policy, incident response contacts, and vulnerability disclosure mechanisms suggests room for improvement in transparency and readiness. GDPR compliance is implied but not explicitly documented on the analyzed page.

Recommendations

  1. Publish a comprehensive privacy policy page clearly linked from the homepage.
  2. Add a dedicated security policy and incident response contact information.
  3. Implement and publish a vulnerability disclosure policy or security.txt file.
  4. Provide direct company contact emails and phone numbers for customer and security inquiries.
  5. Enhance transparency on data protection officer details and GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ZEISS
Description
ZEISS ist ein weltweit führendes Technologieunternehmen der optischen und optoelektronischen Industrie.
Key services
Optical technologies, Optoelectronic solutions, Medical technology, Industrial metrology, Microscopy
Content quality
good
Branding
consistent

Technology

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

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of CSP
  • Cookie consent banner
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
OneTrust Cookie Consent
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 no blocking or WAF challenges.
  2. Content is professional and technology-focused.
  3. Cookie consent mechanism is implemented via OneTrust.
  4. No explicit privacy policy or terms of service found in the provided content.
  5. Contact information is limited to a contact page link and contact form; no direct emails or phone numbers found.
  6. Use of Adobe Experience Manager CMS and Akamai CDN for hosting and delivery.
  7. Good SEO and accessibility practices observed.
  8. No security.txt or vulnerability disclosure page detected.
  9. No data protection officer contact information found.
  10. Strong branding consistency and trust indicators present.
Technical notes

Notes

The website is built on Adobe Experience Manager CMS, served via Akamai CDN, and uses modern JavaScript libraries and SVG icons. Performance is moderate with good mobile optimization and accessibility features. SEO is well addressed with proper meta tags and structured data. The technical stack is modern and enterprise-grade, though continuous monitoring for library vulnerabilities and performance optimization is recommended.
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. 71/100Medium32 findingsView report
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