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Security report for volundvt.dk

Vølund Varmeteknik A/S · Energy · Denmark

Medium risk. 3 critical or high findings in Network security, Security headers and 1 other check.

Security score

63/100

Risk levelMedium

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

Vølund Varmeteknik A/S is a well-established Danish company specializing in sustainable and economical heating solutions including heat pumps for residential, institutional, and SME customers. With over 140 years of history, the company holds a strong market position in the energy sector in Denmark. Their website reflects a professional and consistent brand image, targeting a broad audience including homeowners and businesses. Technically, the site is built on Dynamicweb 9 CMS and integrates modern analytics and marketing tools such as Google Tag Manager and Cookiebot for GDPR compliance. The presence of a comprehensive cookie consent mechanism and privacy policy indicates good privacy practices. Security posture is solid with HTTPS enforced, though some security headers and explicit security policies are missing. Overall, the website is trustworthy, well-structured, and compliant with relevant regulations.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 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. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  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 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';…

  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 volundvt.dk

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.

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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
62
Security headers
65
Email security
80
DNS health
70
Network security
20
GDPR outside view
83
Average
63

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

The company operates primarily in the energy sector, focusing on heating technology and heat pumps. Their business model includes direct sales, installation, and service offerings. The website suggests a medium-sized enterprise with a strong local presence in Denmark. Partnerships with web development firms like Co3 A/S and use of marketing tools indicate a mature digital marketing strategy. The company leverages multiple advertising networks and tracking services to optimize customer engagement and advertising effectiveness. No suspicious domains or affiliate programs were detected, reinforcing a clean business ecosystem.

Security posture

The website demonstrates a moderate to good security maturity level. HTTPS is properly implemented, and cookie consent mechanisms are in place to comply with GDPR. However, the absence of DNSSEC and security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces the overall security robustness. No explicit incident response or vulnerability disclosure information is published, which could be improved to enhance transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the HTML content. The security score reflects these strengths and gaps.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security.
  2. Implement and publish a formal security policy and incident response contact information.
  3. Add essential security headers (CSP, HSTS, X-Frame-Options) to harden the website against common attacks.
  4. Consider publishing a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  5. Regularly audit third-party scripts and libraries to ensure no vulnerabilities are introduced.

Contact details published on the site

Addresses
Legal name
Vølund Varmeteknik A/S
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Vølund Varmeteknik A/S
Description
Hos Vølund Varmeteknik har vi leveret varmetekniske produkter til den danske befolkning gennem mere end 140 år. I dag er vi specialiseret i at udvikle bæredygtige og økonomiske varmeløsninger til boliger, institutioner og små og mellemstore virksomheder.
Key services
Development of sustainable heating solutions, Heat pump sales and installation, Service and dimensioning of heating systems
Content quality
good
Branding
consistent

Technology

Stack
Dynamicweb 9 CMS, Google Tag Manager, Cookiebot, Sleeknote (commented out), JavaScript libraries (dw/dwansta.min.js)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Dw analytics (custom), Cookiebot consent tracking
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google Ads, Facebook Ads, Microsoft Advertising
Tracking pixels
Facebook Pixel, Microsoft UET
Marketing tools
Sleeknote (lead generation, commented out)
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. Strong GDPR compliance with cookie consent and privacy policy.
  3. Use of modern analytics and marketing tools with transparent disclosures.
  4. No visible security policy or incident response information published.
  5. WHOIS data supports a legitimate and longstanding business presence.
  6. No suspicious or malicious content detected.
Technical notes

Notes

The website uses Dynamicweb 9 CMS, which is a modern and flexible platform suitable for business websites. Integration with Google Tag Manager and Cookiebot shows a focus on analytics and privacy compliance. The site loads CSS asynchronously and preloads fonts for performance optimization. Mobile optimization is good, and SEO meta tags including Open Graph and JSON-LD structured data are properly implemented. However, no explicit hosting provider information was found. Performance is moderate, with room for improvement in accessibility features. The technical stack is solid but could benefit from enhanced security configurations and performance tuning.
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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