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Security report for vlink.com

Vattenfall · Energy · Germany

Low risk. 2 critical or high findings in Security headers and SSL/TLS.

Security score

80/100

Risk levelLow

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

Vattenfall's website for business customers offers comprehensive white-label energy solutions aimed at accelerating the energy transition. Their offerings include a centralized platform (VLINK), fulfillment services, and a prosumer app, targeting municipal utilities, developers, wholesalers, and regional craftsmen. The site is professionally designed, mobile-optimized, and provides clear contact information via email. Technically, the site uses modern JavaScript frameworks, cookie consent via OneTrust, and tracking tools like Piwik PRO and Visual Website Optimizer, indicating a mature digital infrastructure. Security posture is good with HTTPS enforced and cookie consent implemented, but lacks explicit security headers and incident response information. Overall, the site is trustworthy and well-positioned in the energy sector.

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

2 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 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

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This scan found 16 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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  • 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
82
Security headers
65
Email security
72
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

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 vlink.com, from OffSeq Breach.

Total records
136
Employees
0
Customers
130
Third parties
6
Weak passwords
26%

4 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 vlink.com.

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

Vattenfall positions itself as a leading energy provider focusing on sustainable and digital energy solutions. Their business model leverages partnerships with various energy market players through white-label offerings, enabling partners to expand their portfolios under their own brand. The company targets a broad B2B audience including utilities, developers, wholesalers, and craftsmen, indicating a diversified customer base. The presence of a centralized platform and fulfillment services suggests a vertically integrated approach to service delivery. The website content and structure reflect a strong brand with consistent messaging and clear calls to action, supporting growth and market penetration strategies.

Security posture

The website demonstrates a moderate to good security maturity level. HTTPS is enforced, and cookie consent mechanisms comply with GDPR requirements. However, the absence of explicit security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces the overall security posture. No public security policy or incident response contacts are provided, which could hinder transparency and responsiveness in case of security incidents. No vulnerabilities or exposed sensitive data were detected in the content. The use of reputable third-party tracking and consent tools indicates awareness of privacy and security best practices, but improvements are recommended to enhance defense-in-depth and compliance.

Recommendations

  1. Implement and publish a comprehensive privacy policy and terms of service accessible from all pages.
  2. Add standard security headers (CSP, HSTS, X-Frame-Options) to improve protection against common web attacks.
  3. Provide clear incident response contact information and consider publishing a vulnerability disclosure policy or security.txt file.
  4. Enhance transparency by detailing data retention policies and cookie usage in the cookie policy.
  5. Regularly audit third-party scripts and tracking tools to minimize privacy risks and ensure compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Vattenfall
Description
Vattenfall offers white-label, digital, scalable energy solutions focused on accelerating the energy transition with products like PV systems, heat pumps, and wallboxes. They provide a platform (VLINK), fulfillment services, and a prosumer app to partners such as municipal utilities, developers, wholesalers, and regional craftsmen.
Key services
VLINK platform for process management, Fulfillment services including installation and maintenance, Prosumer white-label app for customer engagement
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, OneTrust cookie consent, Visual Website Optimizer (VWO), CSS3, HTML5
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented

Analytics and tracking

Services
Piwik PRO, Visual Website Optimizer
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Visual Website Optimizer, Piwik PRO
Marketing tools
OneTrust Cookie Consent, VWO
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.
  2. Professional B2B energy solutions offering.
  3. Cookie consent implemented via OneTrust.
  4. No explicit privacy policy or terms of service links found on this page.
  5. Contact email provided for business inquiries.
  6. No phone numbers or physical addresses explicitly listed on this page.
  7. No security.txt or vulnerability disclosure found.
  8. Use of modern tracking and optimization tools.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The website uses modern web technologies including HTML5, CSS3, and JavaScript with integration of OneTrust for cookie consent and Visual Website Optimizer for A/B testing and optimization. The site is mobile responsive and optimized for accessibility and SEO with proper meta tags and Open Graph data. Performance is moderate, with preloading of fonts and images to improve load times. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting details are not explicit but the domain and name servers align with Vattenfall's infrastructure. The technical implementation supports a professional and scalable digital presence but could benefit from enhanced security configurations.
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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