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Security report for vinci-construction.cz

VINCI Construction CS a.s. · Transportation · Czech Republic

Low risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

78/100

Risk levelLow

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

VINCI Construction CS a.s. is the largest construction group operating in the Czech Republic and Slovakia, specializing in transport engineering, bridge construction, water management, and building construction. The company operates through multiple subsidiaries and brands, demonstrating a broad market presence and diversified service offerings. Their website reflects a professional corporate identity with clear contact information and a comprehensive cookie and privacy policy, indicating compliance with GDPR regulations. Technically, the site uses modern web technologies including Google Tag Manager and a proprietary CMS (Solidpixels), ensuring a good user experience and moderate performance. Security posture is solid with HTTPS enforced and no visible vulnerabilities, though some improvements like explicit security headers and incident response information could enhance their security maturity. Overall, the company presents a trustworthy and professional digital presence aligned with their market position.

Scanned

This is an earlier scan of vinci-construction.cz. View the latest report

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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. 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, LinkedIn, YouTube, Google APIs

      What to do: Document all third-party data sharing in your privacy policy

  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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching vinci-construction.cz

This scan found 14 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
75
Security headers
85
Email security
85
DNS health
85
Network security
100
GDPR outside view
40
Average
78

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 vinci-construction.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for vinci-construction.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

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 holds a dominant position in the Czech and Slovak construction markets, leveraging a multi-brand strategy to cover various construction sectors. Their business model focuses on infrastructure and civil engineering projects, targeting government, commercial, and industrial clients. The presence of multiple subsidiaries indicates a strategy of specialization and regional coverage. The website's detailed listing of subsidiaries and contact points supports transparency and client engagement. The use of Google Analytics and cookie consent mechanisms shows awareness of data privacy and marketing needs. However, the absence of explicit terms of service and security policies suggests areas for improvement in corporate governance and compliance documentation.

Security posture

VINCI Construction CS demonstrates a mature security posture with HTTPS enforced and cookie consent mechanisms in place, supporting GDPR compliance. No exposed sensitive data or vulnerable libraries were detected in the website content. However, the lack of explicit security headers like Content-Security-Policy and absence of published incident response or vulnerability disclosure policies indicate room for enhancement. The missing WHOIS data reduces domain trust slightly but does not directly impact operational security. Overall, the company appears to maintain good security hygiene but should consider publishing more detailed security and incident response information to improve transparency and readiness.

Recommendations

  1. Implement and publish a Content-Security-Policy header to mitigate cross-site scripting risks.
  2. Create and publish a security policy and incident response page to improve transparency and preparedness.
  3. Add a security.txt file to facilitate responsible vulnerability disclosure.
  4. Publish clear terms of service to enhance legal compliance and user trust.
  5. Regularly review and update WHOIS information to improve domain registration transparency.

Contact details published on the site

Addresses
Legal name
VINCI Construction CS a.s.
Registration number
14080672
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
VINCI Construction CS a.s.
Description
We are the largest construction group in the Czech and Slovak Republic. We operate in all areas of construction, from traffic engineering to civil engineering.
Key services
Transport engineering, Bridge construction, Water management structures, Building construction
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Google Fonts, Solidpixels CMS, Fancybox, Swiper, Flatpickr
Frameworks
Solidpixels CMS framework
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

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. WHOIS data unavailable, possibly due to privacy or registry restrictions
  3. Comprehensive cookie consent and GDPR policy present
  4. Multiple subsidiaries and brands clearly listed with links
  5. Contact information is complete and professional
  6. Use of modern web technologies and CMS
  7. No visible security vulnerabilities or exposed sensitive data
  8. No explicit terms of service or security policy pages found
  9. Social media presence on LinkedIn, Facebook, Instagram, YouTube
Technical notes

Notes

The website is built on the Solidpixels CMS platform, utilizing modern JavaScript libraries such as Fancybox and Swiper for UI components and Google Tag Manager for analytics and marketing. The site loads external fonts from Google Fonts and uses asynchronous JavaScript loading to optimize performance. Mobile optimization is good with responsive design and viewport meta tags. SEO is supported by proper meta tags and Open Graph data. Accessibility is basic but could be improved with more ARIA attributes and semantic HTML. Hosting provider details are not explicitly available. Overall, the technical infrastructure supports a professional and functional web presence with moderate performance and good user experience.
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. 75/100Medium25 findingsView report
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