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Security report for viergas.de

Vier Gas Transport GmbH · Energy · Germany

Partial score · DNS & email only

75/100

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

Vier Gas Transport GmbH is a German company specializing in the acquisition, holding, and management of interests in gas transmission assets and the broader energy sector. Founded in 2012, it is the sole owner of Open Grid Europe, a leading European gas transmission system operator. The website targets investors and energy sector stakeholders, providing corporate, financial, and business news information. The business model focuses on asset management and energy sector investments, positioning Vier Gas as a significant player in European energy infrastructure. Technically, the website is built on the Neos CMS platform using the Flow PHP framework, with frontend technologies including jQuery and Bootstrap. Hosting is provided by Adacor, indicated by the nameservers. The site demonstrates good mobile optimization, SEO practices, and moderate performance. The technical stack is modern and well-maintained, supporting a professional digital presence. From a security perspective, the site enforces HTTPS and avoids exposing sensitive data. However, it lacks several security headers and does not publish explicit security or incident response policies. There is no cookie consent mechanism despite GDPR compliance indicated by the privacy policy. No vulnerabilities or malicious content were detected. Overall, the security posture is solid but could be improved by implementing additional headers and transparency measures. The overall risk assessment is low, with the website presenting a trustworthy and professional corporate image. Strategic recommendations include enhancing security headers, publishing incident response information, implementing cookie consent, and adding a vulnerability disclosure policy to strengthen compliance and trust.

Scanned

3 of 7 checks could not complete. The site may be unreachable or blocking automated scans, so the results below cover only what could be checked. Try a rescan later.

NIS2 and GDPR posture

NIS2 outside view
Not assessed
GDPR outside view
Not assessed

Both readouts depend on the site's pages, which could not be loaded in this scan.

Priority findings

2 findings 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 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
    • High

      SSL Certificate Expires Soon

      SSL certificate expires in 15 days

      What to do: Renew SSL certificate before expiration

      • NIS2 21(2)(h)
      • IR 2024/2690 9.2(c): Implementing Regulation (EU) 2024/2690, Annex point 9.2(c): Cryptography
      • NIST SC-17: NIST SP 800-53 Rev. 5 SC-17: Public Key Infrastructure Certificates

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Keep watching viergas.de

This scan found 12 issues across 4 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
67
Email security
85
DNS health
70
Network security
100
Average
81
After the cap
75

Not counted

  • Security headers: did not complete in this scan.
  • GDPR outside view: did not complete in this scan.
  • 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

Vier Gas Transport GmbH holds a strong market position as the owner of Open Grid Europe, a key player in European gas transmission. The company operates primarily in the energy and transport sectors, focusing on asset management and investment. Its business model leverages ownership of critical infrastructure to generate stable revenue streams. The target audience includes institutional investors, financial analysts, and energy sector participants. Recent business news and bond issuances indicate active financial management and growth. The company maintains a professional online presence with clear corporate communications but limited direct contact information. Partnerships appear limited to subsidiaries, with no evident external alliances disclosed on the site.

Security posture

The website demonstrates a mature security posture with mandatory HTTPS and no visible sensitive data leaks. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options reduces defense-in-depth. The lack of published security policies or incident response contacts limits transparency and preparedness perception. No vulnerability disclosures or security.txt files were found, which could hinder coordinated vulnerability management. GDPR compliance is partially demonstrated via a comprehensive privacy policy but lacks cookie consent mechanisms. Overall, the site is secure but would benefit from enhanced security controls and transparency to meet best practices and regulatory expectations.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to improve protection against common web attacks.
  2. Publish an explicit security policy and incident response page with contact channels to increase transparency and readiness.
  3. Add a cookie consent banner/mechanism to comply fully with GDPR and enhance user privacy control.
  4. Establish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting and remediation of security issues.
  5. Include data protection officer contact information to strengthen GDPR compliance and user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Vier Gas Transport GmbH
Description
The object of the Company is the acquisition, holding and management of interests in gas transmission assets and the energy sector in general. Vier Gas Transport GmbH is the 100% owner of Open Grid Europe, a leading European transmission system operator.
Key services
Management of gas transmission assets, Energy sector investments
Content quality
good
Branding
consistent

Technology

Stack
PHP, jQuery, Bootstrap, Popper.js
Frameworks
Neos CMS, Flow PHP framework
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

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 focused on corporate and investor information.
  3. No direct contact emails or phone numbers visible on main pages; contact form is primary contact method.
  4. No cookie consent banner detected despite GDPR privacy policy presence.
  5. No explicit security or incident response policies published.
  6. No analytics or tracking scripts detected in the provided HTML.
  7. External links limited and relevant to business (Open Grid Europe).
Technical notes

Notes

The website is built on a modern PHP framework (Flow) and managed via Neos CMS, indicating a robust and flexible content management infrastructure. Frontend technologies include jQuery, Bootstrap, and Popper.js, supporting responsive and interactive design. Hosting is managed by Adacor, a professional hosting provider. Performance is moderate with good mobile optimization and SEO practices in place. No deprecated or vulnerable libraries were detected in the provided scripts. The site lacks advanced accessibility features but maintains basic compliance. Opportunities exist to improve performance and accessibility further, as well as to modernize security headers and privacy mechanisms.
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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