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Security report for sentiagruppen.no

Sentia · Real Estate · Norway

Low risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

78/100

Risk levelLow

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

Sentia is a leading Nordic construction group formed by merging prominent companies HENT, SSEA, Vestia, and Målbygg, employing over 1,400 people. The company specializes in complex and sustainable building projects for public and commercial clients primarily in Norway and Sweden. The website reflects a mature digital presence with professional design, clear navigation, and multilingual support. Technically, the site uses modern web technologies and implements HTTPS with a cookie consent mechanism, indicating good privacy practices. However, the absence of visible security headers and incident response information suggests room for improvement in security posture. The lack of WHOIS data limits domain registration verification, but the professional content and business information support legitimacy. Overall, Sentia presents a credible and trustworthy corporate website with a strong focus on sustainability and large-scale construction projects.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 100 · Medium
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. 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. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

      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

  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 sentiagruppen.no

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
75
Security headers
70
Email security
85
DNS health
75
Network security
100
GDPR outside view
65
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

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Sentia holds a strong market position as a leading Nordic construction conglomerate, combining several subsidiaries to deliver large-scale projects. Their business model focuses on public sector and commercial construction with an emphasis on sustainability aligned with UN goals. The company targets institutional clients and large commercial customers in Norway and Sweden. Press releases and investor information indicate active market engagement and transparency. The presence of multiple subsidiaries and a recent IPO on Oslo Børs highlight growth and financial maturity. The website's content and structure support a professional corporate image, aiding in client acquisition and investor relations.

Security posture

The website enforces HTTPS and includes a cookie consent mechanism, demonstrating compliance with privacy regulations. However, no explicit security headers such as Content-Security-Policy or X-Frame-Options were detected, which are recommended to enhance security. There is no published security policy or incident response contact, which could be a gap in transparency and readiness. No vulnerabilities or exposed sensitive data were observed in the content. The security score is good but could be improved by implementing additional headers and publishing security-related policies.

Recommendations

  1. Implement HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  2. Publish a clear security policy and incident response contact information on the website.
  3. Add a vulnerability disclosure or security.txt file to facilitate responsible reporting.
  4. Enhance WHOIS transparency if possible to improve domain trustworthiness.
  5. Continue maintaining comprehensive privacy and cookie compliance mechanisms.

Contact details published on the site

Addresses
Legal name
Sentia ASA
Registration number
999 256 864
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sentia
Description
Sentia er et ledende nordisk entreprenørkonsern dannet ved å kombinere HENT, SSEA, Vestia og Målbygg, med over 1 400 ansatte. Spesialiserer seg på komplekse, bærekraftige byggeprosjekter for offentlige og kommersielle kunder i Norge og Sverige.
Key services
Large and complex construction projects, Project management, Sustainable building solutions
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented

Analytics and tracking

Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Cookie Script
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. Content is professionally presented in Norwegian with English language option.
  3. Strong focus on corporate construction business with clear branding.
  4. Comprehensive cookie consent and privacy policy present.
  5. No visible security policy or incident response contact information.
  6. WHOIS data unavailable, limiting domain registration verification.
  7. No suspicious or malicious content detected.
Technical notes

Notes

The website uses standard modern web technologies including JavaScript, CSS, and HTML5 with responsive design ensuring excellent mobile optimization. The presence of a cookie consent script indicates attention to privacy compliance. Performance is moderate, with lazy loading of images and video backgrounds enhancing user experience. No CMS or hosting provider details were detected. SEO is supported by proper meta tags and Open Graph data. Accessibility features appear adequate. Technical risks are minimal but could be reduced by adding security headers and improving domain registration transparency.
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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