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Security report for strabag.com

STRABAG SE · Transportation · Austria

Medium risk. 5 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

50/100

Risk levelMedium

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

STRABAG SE is a leading European construction and technology company specializing in infrastructure, building construction, and specialized construction sectors. The company emphasizes innovation, sustainability, and quality, positioning itself as a market leader with a comprehensive portfolio of services including road construction, civil engineering, and tunneling. The website content reflects a mature enterprise with a strong focus on ESG principles and investor relations, targeting investors, clients, and partners in the construction and infrastructure sectors. Technically, the website employs standard web technologies such as jQuery and custom JavaScript, hosted on Microsoft Azure with DNS managed via AWS. While the site is content-rich and well-structured with good SEO and mobile optimization, it suffers from critical security shortcomings, notably the absence of a valid SSL/TLS certificate and HTTPS support, which severely impacts its security posture. Security analysis reveals a lack of essential security headers, no DNSSEC or CAA records, and no advanced SSL features like OCSP stapling or session resumption. Privacy compliance is well addressed with a comprehensive privacy policy and cookie consent mechanism, but incident response and vulnerability disclosure policies are not evident. Overall, STRABAG SE's website demonstrates strong business credibility and content quality but requires urgent security improvements to protect user data and enhance trust. Strategic recommendations include implementing HTTPS, enabling security headers, and adopting DNS security measures to align with best practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
18/ 100 · Critical
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

5 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

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  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.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

  3. 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';…

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

Keep watching strabag.com

This scan found 18 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.

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Full report

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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
0
Security headers
60
Email security
50
DNS health
70
Network security
100
GDPR outside view
18
Average
50

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 SE operates as an essential entity in the transportation and construction sectors, with a mature domain age supporting its longstanding market presence. The company leverages a diversified business model encompassing infrastructure development, building construction, and specialized construction services. Its competitive advantages include a strong ESG commitment, extensive investor relations transparency, and a broad service portfolio. Revenue streams likely derive from large-scale infrastructure projects, real estate, and specialized construction activities. The target customer segments include public and private sector clients, investors, and suppliers. STRABAG maintains a robust partnership ecosystem with dedicated platforms for suppliers, machinery, real estate, and eInvoicing, enhancing operational efficiency and stakeholder engagement. Strategic observations highlight the company's focus on innovation, sustainability, and digital transformation initiatives such as 3D printing and AI-driven design.

Security posture

The current security maturity level of STRABAG SE's website is low due to the absence of a valid SSL/TLS certificate and lack of HTTPS enforcement, exposing users to potential data interception risks. The missing security headers and DNS security features further weaken the site's defense against common web attacks. Compliance gaps include no visible incident response contacts or vulnerability disclosure policies, which are critical for timely threat mitigation. Data protection practices are partially addressed through a comprehensive privacy policy and cookie consent mechanism, indicating awareness of GDPR requirements. However, the lack of secure transport and security best practices undermines overall security culture and readiness. Business impact includes potential reputational damage and regulatory risks if security is not promptly enhanced.

Recommendations

  1. Implement a valid SSL/TLS certificate and enforce HTTPS site-wide immediately.
  2. Enable HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Adopt DNSSEC and configure CAA records to secure DNS and certificate issuance.
  4. Establish and publish an incident response contact and vulnerability disclosure policy.
  5. Regularly audit and update third-party scripts and libraries to mitigate vulnerabilities.

Contact details published on the site

Addresses
Technical notes

Notes

The website infrastructure is hosted on Microsoft Azure with DNS managed by AWS, indicating a reliable hosting environment. The technology stack includes jQuery 3.3.1 and standard web technologies, but no modern frameworks or CMS were explicitly detected. Performance is slow with a load time of over 21 seconds and a large page size (~393 KB), suggesting optimization opportunities. The site is mobile optimized and accessible with good SEO practices, including meta tags and Open Graph data. Technical risks include outdated or missing SSL configuration and lack of security headers, which could impact business operations and user trust. Modernization opportunities include adopting HTTPS, improving performance, and enhancing 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

Earlier scans of this domain

  1. 46/100High24 findingsView report
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