Skip to main content

Security report for dtek.com

DTEK · Energy · Ukraine

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

73/100

Risk levelMedium

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

DTEK is a leading private investor and operator in Ukraine's energy sector, positioning itself as a pan-European energy group focused on sustainable and resilient energy solutions. The company targets energy sector stakeholders, investors, and the European energy market, emphasizing its role as the largest private investor in Ukraine's energy industry. The website reflects a professional corporate presence with clear branding and consistent messaging aligned with its business objectives. Technically, the website employs modern digital tools including Google Tag Manager, Cookiebot for consent management, and Facebook SDK for social media integration. The site is HTTPS secured, mobile optimized, and demonstrates good SEO practices, although some accessibility features could be enhanced. The domain is well-established since 2000, with consistent WHOIS data and no privacy protection, indicating transparency. From a security perspective, the site enforces HTTPS and uses clientTransferProhibited status on the domain, but lacks DNSSEC and explicit security headers. Cookie consent is managed effectively via Cookiebot, supporting GDPR compliance. However, no public security policy, incident response contacts, or vulnerability disclosure mechanisms were found, representing areas for improvement. Overall, the website is professional, trustworthy, and compliant with privacy norms, but could benefit from enhanced security policies and transparency to further strengthen its security posture and user trust.

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

4 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. 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 dtek.com

This scan found 19 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

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
82
Security headers
20
Email security
65
DNS health
85
Network security
100
GDPR outside view
83
Average
73

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

DTEK holds a strong market position as Ukraine's largest private energy investor, focusing on sustainable energy transformation for Ukraine and Europe. Its business model revolves around investment and operation in energy production and distribution. The company leverages partnerships and maintains a visible presence on major social media platforms, enhancing its brand reach and stakeholder engagement. The website content and structured data reflect a mature enterprise with a clear target audience of investors and energy sector participants. Growth indicators include ongoing transformation efforts and pan-European ambitions. The absence of detailed financial or subsidiary information limits deeper business intelligence insights but aligns with typical corporate disclosure practices.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS enforced and domain transfer protections in place. The use of Cookiebot indicates awareness of privacy compliance and user consent management. However, the absence of DNSSEC, security.txt, and explicit security policies or incident response contacts suggests gaps in transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the provided content. The site lacks visible advanced security headers which could improve protection against common web threats. Compliance with GDPR is implied but not explicitly documented. Overall, the security posture is adequate for a corporate site but could be enhanced with formalized policies and technical improvements.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Publish a comprehensive privacy policy and terms of service accessible from the website footer.
  3. Implement and publicize a security policy and incident response contact information.
  4. Add security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options.
  5. Consider publishing a vulnerability disclosure policy or security.txt file to encourage responsible reporting.

Contact details published on the site

Addresses
Legal name
DTEK
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
DTEK
Description
DTEK is today transforming into a sustainable and resilient energy leader for Ukraine and Europe
Key services
Energy production, Energy distribution, Sustainable energy solutions
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Cookiebot CMP, Facebook SDK
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • ClientTransferProhibited domain status
  • Cookie consent management implemented

Analytics and tracking

Services
Google Analytics
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google
Tracking pixels
Cookiebot, Facebook Pixel
Marketing tools
Facebook SDK
Transparency
good

Site quality

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

Key observations

  1. Website uses modern cookie consent management with Cookiebot.
  2. Strong presence of social media links and structured contact data.
  3. No explicit privacy policy or terms of service found in provided content.
  4. No visible security.txt or vulnerability disclosure information.
  5. HTTPS is enforced; no WAF blocking detected.
  6. Domain WHOIS data is consistent and indicates a legitimate, long-established business.
Technical notes

Notes

The website uses a modern technology stack including Google Tag Manager for analytics and tracking, Cookiebot for GDPR-compliant cookie consent management, and Facebook SDK for social media integration. The site is served over HTTPS with a valid certificate, ensuring encrypted communications. Performance appears moderate with no explicit indicators of slowness or errors. The site is mobile optimized and SEO friendly with proper meta tags and structured data. However, no CMS or hosting provider was explicitly detected. Accessibility features are basic and could be improved to meet higher standards. The domain is stable and long-standing, supporting business continuity. Overall, the technical infrastructure supports a professional corporate web presence with room for security and accessibility enhancements.
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. 74/100Medium27 findingsView report
Reviews of this site

Share your experience with dtek.com. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review dtek.com.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.