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Security report for dehn.pl

DEHN POLSKA sp. z o.o. · Energy · Poland

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

66/100

Risk levelMedium

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

DEHN POLSKA sp. z o.o. is a medium-sized company specializing in lightning and surge protection solutions, serving industrial, commercial, and residential sectors primarily in Poland and globally through its parent company DEHN SE. The website demonstrates a mature digital presence with comprehensive product information, technical support, and training offerings. The technical infrastructure is modern, leveraging Drupal 10 CMS and integrating Google Tag Manager for analytics, ensuring good performance and mobile optimization. Security posture is solid with HTTPS enforced and cookie consent mechanisms implemented, though additional security headers could enhance protection. The absence of WHOIS data for the domain www.dehn.pl is a notable gap, reducing trustworthiness from a domain registration perspective, but the overall business credibility and content quality remain high. Strategic recommendations include improving security headers, enhancing incident response visibility, and verifying domain registration details to strengthen trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
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

8 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

  2. 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';…

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

Keep watching dehn.pl

This scan found 20 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
75
Security headers
25
Email security
85
DNS health
85
Network security
100
GDPR outside view
25
Average
66

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 dehn.pl, from OffSeq Breach.

Total records
7
Employees
0
Customers
7
Third parties
0
Weak passwords
0%

3 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 dehn.pl.

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

DEHN operates in the energy, telecommunications, transportation, and manufacturing sectors, offering a broad portfolio of over 4000 products globally. The company maintains a strong market position with operations in over 70 countries supported by subsidiaries and partner firms. Revenue streams include product sales, technical consulting, and training services. The website targets technical professionals and businesses requiring electrical safety solutions. Growth indicators include active content updates, training programs, and participation in industry events. Partnerships with international entities and localized country sites support global reach and customer engagement.

Security posture

The website enforces HTTPS and employs cookie consent mechanisms aligned with GDPR requirements. Security headers are partially implemented but could be improved by adding Content-Security-Policy and Strict-Transport-Security headers. No exposed sensitive data or vulnerable libraries were detected in the HTML content. The lack of a visible security policy or incident response contact limits transparency in security governance. Overall, the security maturity is moderate to good, with room for enhancement in policy communication and header configurations.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy and Strict-Transport-Security.
  2. Publish a clear security policy and incident response contact information on the website.
  3. Verify and update WHOIS domain registration details to improve trust and legitimacy.
  4. Regularly audit third-party scripts and tracking tools for security and privacy compliance.
  5. Enhance user trust by providing certifications or compliance badges related to security and quality.

Contact details published on the site

Addresses
Legal name
DEHN POLSKA sp. z o.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
DEHN POLSKA sp. z o.o.
Description
DEHN provides lightning and surge protection solutions for buildings, electrical installations, electronic systems, and human safety.
Key services
Lightning protection, Surge protection, Safety equipment, Technical support and training
Content quality
good
Branding
consistent

Technology

Stack
Drupal 10, JavaScript, Google Tag Manager
Frameworks
Drupal
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

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 rich content and navigation
  2. Strong focus on lightning and surge protection products and solutions
  3. Comprehensive cookie consent and privacy policy in place
  4. No visible security or privacy policy documents beyond privacy and cookie policies
  5. WHOIS data missing, which is unusual and warrants caution
  6. Social media presence is official and consistent
  7. Website uses modern CMS (Drupal 10) and includes Google Tag Manager for analytics
Technical notes

Notes

The website is built on Drupal 10 CMS, indicating a modern and maintainable platform. It uses JavaScript for interactive elements and Google Tag Manager for analytics integration. The site is mobile optimized and accessible with skip links and ARIA attributes. Performance is moderate, with multiple CSS and JS files loaded asynchronously. The site structure is clear with well-organized navigation menus and semantic HTML. Opportunities exist to optimize loading times further and implement advanced security headers. No major technical debts or deprecated technologies were identified.
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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