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Security report for dnv.nl

DNV · Energy · Netherlands

Low risk. 1 critical or high finding in SSL/TLS.

Security score

80/100

Risk levelLow

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

DNV is a well-established enterprise providing certification, training, verification, assessments, ship classification, energy solutions, and technical advisory services primarily for the oil and gas sector. The company positions itself as a trusted partner focused on safeguarding life, property, and the environment. The website reflects a mature digital presence with multilingual support and sector-specific content targeting organizations in maritime, energy, and related industries. Technically, the site uses modern JavaScript frameworks, Google Tag Manager, Microsoft Application Insights, and OneTrust for cookie consent, indicating a moderate to high level of digital maturity. Security posture is strong with HTTPS enforced and telemetry implemented, though explicit security headers and policies are not visible. Privacy compliance is partial, with cookie consent present but no clear privacy policy or GDPR compliance statements found. Overall, the website is professional and trustworthy but could improve transparency around privacy and security policies.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

1 finding rated critical or high. Fix these first.

  1. 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 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 dnv.nl

This scan found 17 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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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
75
Security headers
80
Email security
65
DNS health
70
Network security
100
GDPR outside view
88
Average
80

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

DNV operates in the energy and transportation sectors, offering essential certification and advisory services. Its business model revolves around providing assurance and technical expertise to organizations, particularly in maritime and oil and gas industries. The company maintains a strong market position as a global leader in certification and technical consultancy. The website's extensive multilingual domain network suggests a broad international footprint. The absence of explicit contact information and privacy policies on the main page may indicate these are located deeper within the site or managed via separate portals. The use of advanced analytics and cookie consent tools reflects an awareness of regulatory and marketing needs. No suspicious or unrelated domains are linked, supporting a focused and legitimate business ecosystem.

Security posture

The website demonstrates a solid security foundation with HTTPS and cookie consent mechanisms in place. The use of Microsoft Application Insights provides telemetry and error tracking, enhancing operational security. However, the lack of visible security headers such as Content-Security-Policy or X-Frame-Options is a gap that could be addressed to improve defense-in-depth. No vulnerability disclosure or incident response information is published, which is a common best practice for enterprise sites. No exposed sensitive data or vulnerable libraries were detected in the provided content. Overall, the security posture is good but could be enhanced by publishing clear security policies and implementing additional HTTP security headers.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service prominently accessible on the website.
  2. Implement and publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  3. Add standard security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Provide clear contact information for security incidents and data protection officer inquiries.
  5. Regularly audit third-party scripts and analytics tools to ensure compliance and minimize tracking risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
DNV
Description
DNV helpt organisaties met certificering, training, verificatie en assessments, scheepsclassificatie, energievraagstukken en technisch advies voor de olie- en gassector. Onze drijfveer is het waarborgen van leven, eigendommen en het milieu.
Key services
certificering, training, verificatie en assessments, scheepsclassificatie, energievraagstukken, technisch advies voor olie- en gassector
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, React (implied by react component data attributes), OneTrust Cookie Consent, Google Tag Manager, Microsoft Application Insights
Frameworks
React
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • Use of Microsoft Application Insights for telemetry

Analytics and tracking

Services
Google Tag Manager, Microsoft Application Insights
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Microsoft Application Insights
Marketing tools
OneTrust Cookie Consent
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured
  2. Content is primarily in Dutch with multilingual support via alternate hreflang links
  3. No explicit privacy policy or terms of service found on the main page or metadata
  4. Cookie consent is implemented using OneTrust
  5. No visible contact emails or phone numbers on the main page HTML content provided
  6. Use of modern analytics and telemetry tools
  7. No visible security.txt or vulnerability disclosure information
  8. No explicit security policy or incident response contact information found
Technical notes

Notes

The website uses a modern JavaScript stack, likely React, combined with CSS layering and lazy loading for images, indicating good front-end performance practices. Google Tag Manager and Microsoft Application Insights are integrated for analytics and telemetry. The site is mobile optimized and accessible with skip links and ARIA labels. Preloading of CSS assets suggests performance optimization efforts. However, the CMS or hosting provider is not explicitly identified. The site performs moderately well but could benefit from further performance tuning and enhanced security header implementation.
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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