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Security report for subctech.com

SubCtech - Ocean Power & Monitoring · Energy · Germany

Medium risk. 5 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

SubCtech GmbH is a German-based company specializing in advanced ocean engineering technologies, focusing on high-performance Li-Ion batteries for subsea applications and autonomous ocean monitoring systems. With over 15 years of industry experience and a strong market position, SubCtech serves scientific and industrial clients globally, offering certified and customized solutions. The company is part of the Gabler Maschinenbau GmbH under the Possehl Group, enhancing its market credibility and resources. Technically, the website is built on a modern WordPress platform with robust SEO and user experience features, though some security enhancements like DNSSEC and CSP headers could be implemented. Security posture is solid with HTTPS and clientTransferProhibited domain status, but lacks explicit incident response contacts and vulnerability disclosure mechanisms. Overall, the website reflects a professional, trustworthy, and compliant business entity with clear contact channels and privacy practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

5 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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

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

Keep watching subctech.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

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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
77
Security headers
15
Email security
85
DNS health
70
Network security
100
GDPR outside view
85
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

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

SubCtech operates in the energy and technology sectors, targeting marine research, offshore oil & gas, and subsea vehicle markets. Their competitive advantage lies in certified, high-safety Li-Ion battery systems and autonomous monitoring technologies. Revenue streams likely include product sales, customized solutions, consulting, and support services. The company maintains strategic partnerships and a reputable client base, signaling growth and stability. Their digital presence supports lead generation and client engagement through detailed product information, news updates, and quote request forms.

Security posture

The website demonstrates a mature security posture with HTTPS enforcement, domain transfer protection, and cookie consent mechanisms aligned with GDPR. However, the absence of DNSSEC, Content-Security-Policy headers, and a published security.txt file indicates room for improvement. No exposed sensitive data or vulnerable libraries were detected. Incident response readiness is unclear due to missing explicit contacts. Overall, the security measures are adequate for the business type but could be enhanced to meet higher standards and regulatory requirements.

Recommendations

  1. Enable DNSSEC on the domain to strengthen DNS security and prevent spoofing.
  2. Implement a Content-Security-Policy header to mitigate cross-site scripting and related attacks.
  3. Publish a security.txt file to facilitate responsible vulnerability disclosure and improve transparency.
  4. Add explicit incident response contact information (e.g., security@ or abuse@ email) on the website.
  5. Regularly audit and update all plugins and themes to minimize vulnerabilities.

Contact details published on the site

Addresses
Legal name
SubCtech GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
SubCtech - Ocean Power & Monitoring
Description
Market leader of cost-efficient, high-performance, high-reliable + safe Li-Ion batteries for subsea Oil & Gas, vehicles (AUV, ROV) and ocean monitoring systems.
Key services
Ocean Power Systems (Li-Ion batteries for subsea, UPS, ROV, AUV), Ocean Monitoring Systems (autonomous underway measurement systems, sensors), Customized battery solutions, Consulting and support services
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress 6.8.3, WPBakery Page Builder, Yoast SEO, Slider Revolution, jQuery, Slick Carousel, Google Maps API
Frameworks
Bootstrap
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Cookie consent banner with opt-in mechanism
  • No exposed sensitive data in HTML
  • Use of reputable plugins and updated CMS

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Yoast SEO, Sassy Social Share
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. Comprehensive product and company information available.
  3. Strong presence of trust indicators including certifications and client logos.
  4. Cookie consent and privacy policies are implemented and accessible.
  5. No signs of malicious or suspicious activity.
  6. Use of modern web technologies and SEO best practices.
  7. Contact information is clear and includes multiple channels.
  8. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built on WordPress 6.8.3 with popular plugins like WPBakery Page Builder and Yoast SEO, ensuring a modern and SEO-friendly infrastructure. The use of Bootstrap and jQuery supports responsive design and interactive elements. Performance is moderate with room for optimization. Accessibility features are basic but present. The site uses Google Analytics for tracking and complies with cookie consent regulations. Hosting is likely provided by IONOS SE, consistent with the registrar information. Technical debt appears low, but security headers and DNS security enhancements are recommended to reduce risk.
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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