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Security report for strabag.at

STRABAG AG · Transportation · Austria

Medium risk. 4 critical or high findings in Email security, Security headers and 1 other check.

Security score

73/100

Risk levelMedium

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

STRABAG AG is Austria's largest construction company and market leader in the construction industry, offering a broad range of services including building construction, road and civil engineering, engineering construction, and special trades. The company emphasizes expertise, innovation, and regional presence to deliver tailored construction solutions. The website reflects a mature digital infrastructure with modern technologies such as jQuery, Matomo analytics, and OneTrust for privacy compliance. Security posture is strong with HTTPS and cookie consent mechanisms, though explicit security policies and incident response contacts are not publicly available. The absence of WHOIS data limits domain trust verification but the professional presentation and external references support legitimacy. Overall, the website is well-designed, user-friendly, and compliant with GDPR requirements.

Scanned

This is an earlier scan of strabag.at. View the latest report

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

4 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  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 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 strabag.at

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

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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
60
Email security
40
DNS health
75
Network security
100
GDPR outside view
88
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

STRABAG AG holds a dominant market position in Austria's construction sector, leveraging a comprehensive service portfolio and regional anchoring. The company targets business clients, suppliers, and potential employees, supported by dedicated career and supplier portals. Its business model integrates construction services with technology partnerships and sustainability initiatives, aiming for climate neutrality by 2040. The presence of subsidiaries like Böhm BiB GmbH and external partner sites indicates a broad operational ecosystem. The website's content and external links demonstrate a strong brand and trustworthiness, positioning STRABAG as a key player in transportation and real estate sectors.

Security posture

The website enforces HTTPS and employs cookie consent mechanisms compliant with GDPR, indicating a solid baseline security posture. Use of Matomo analytics suggests privacy-conscious tracking. However, the lack of published security policies, incident response contacts, and vulnerability disclosure mechanisms represents gaps in transparency and readiness. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. Security headers were not explicitly identified, suggesting room for improvement. Overall, the security maturity is good but could be enhanced by formalizing policies and response channels.

Recommendations

  1. Publish a dedicated security policy page outlining security frameworks and practices.
  2. Provide clear incident response contact information, such as security@ or abuse@ email addresses.
  3. Implement and publish a vulnerability disclosure policy or security.txt file.
  4. Add and enforce security headers like Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  5. Regularly audit and update third-party scripts and libraries to mitigate vulnerabilities.

Contact details published on the site

Addresses
Legal name
STRABAG AG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
STRABAG AG
Description
STRABAG AG is Austria's largest construction company and market leader in all areas of the construction industry. They focus on expertise and innovation to provide tailored construction solutions across Austria.
Key services
Hochbau (Building Construction), Straßen- & Tiefbau (Road and Civil Engineering), Ingenieurbau (Engineering Construction), Spezialgewerke (Special Trades)
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery 3.3.1, Matomo Tag Manager, OneTrust Cookie Consent, SVG graphics
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with GDPR compliance
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
OneTrust Cookie Consent
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Strong GDPR and cookie consent implementation.
  3. Clear corporate branding and consistent messaging.
  4. No security policy or incident response contact publicly available.
  5. WHOIS data unavailable, limiting domain trust verification.
  6. Multiple external links to official STRABAG group and subsidiaries.
  7. Use of Matomo analytics and OneTrust for privacy compliance.
Technical notes

Notes

The website uses a modern tech stack including jQuery 3.3.1, Matomo Tag Manager for analytics, and OneTrust for cookie consent management. The site is mobile optimized with responsive design and accessibility considerations. Performance is moderate with some room for optimization. SEO is well addressed with proper meta tags and Open Graph data. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not evident from the HTML. Overall, the technical infrastructure supports a professional and compliant web presence with opportunities for further modernization and security hardening.
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. 59/100Medium35 findingsView report
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