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Security report for byggherre.se

Byggherrarna · Real Estate · Sweden

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

71/100

Risk levelMedium

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

Byggherrarna is a Swedish membership organization serving professional and long-term property developers in both public and private sectors. The organization focuses on strengthening and developing the role of property developers to promote sustainable community building, quality living environments, and Swedish competitiveness. Their services include guidance on contracts and procurement, educational courses, industry news, and events. The website is professionally designed, mobile-optimized, and provides clear navigation and relevant content tailored to its target audience. Technically, the site uses a modern tech stack including jQuery, Google Tag Manager, Google Analytics, and YouTube APIs, likely built on the Umbraco CMS platform. Security posture is strong with HTTPS enforcement and anti-CSRF tokens, though some security headers and explicit policies are missing. Privacy compliance is partially addressed with a cookie consent mechanism but lacks a dedicated privacy policy page. WHOIS data for the exact domain queried is missing, which slightly reduces trust from a domain registration perspective, but the website content and branding support legitimacy. Overall, the site is a credible and professional resource for its sector.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 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. 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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. 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

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

Keep watching byggherre.se

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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
72
Security headers
15
Email security
85
DNS health
70
Network security
100
GDPR outside view
83
Average
71

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

Byggherrarna occupies a niche position as a sector-specific membership organization in Sweden, targeting property developers and construction professionals. Their business model revolves around membership fees, educational offerings, and providing industry guidance. The organization leverages digital channels including social media and webinars to engage members. The website reflects a mature digital presence with integrated analytics and marketing tools. The absence of WHOIS data for the exact domain suggests the use of a subdomain or alias, which should be clarified for full trust. The organization appears well-established within its sector, with a focus on sustainability and regulatory compliance, positioning it as a thought leader and resource hub in the Swedish construction industry.

Security posture

The website demonstrates a solid security foundation with HTTPS enabled and use of anti-CSRF tokens in forms. Cookie consent is implemented with detailed cookie descriptions, enhancing privacy transparency. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options is a gap. No explicit security policy or incident response contact information is published, which could hinder vulnerability reporting and incident management. The use of third-party services like Google Analytics and YouTube is managed with privacy considerations but requires ongoing monitoring for compliance. Overall, the security posture is good but can be improved by publishing comprehensive policies and enhancing HTTP security headers.

Recommendations

  1. Publish a comprehensive privacy policy page clearly accessible from the homepage.
  2. Add terms of service and security policy pages to improve transparency and compliance.
  3. Implement and verify HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Create and publish a security.txt file to facilitate vulnerability disclosure and incident reporting.
  5. Clarify domain registration details and ensure WHOIS data is accurate and publicly available to enhance trust.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Byggherrarna
Description
Vi är en mötesplats för professionella och långsiktiga byggherrar inom offentlig och privat verksamhet. Vi stärker och utvecklar byggherrerollen för ett hållbart samhällsbyggande, goda livsmiljöer och svensk konkurrenskraft.
Key services
Guidance on contracts and procurement, Education and courses, Industry news and updates, Events and calendar, Membership services
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.11.3, Google Tag Manager, Google Analytics, YouTube iframe API, CookieTractor cookie consent
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Anti-CSRF token (__RequestVerificationToken) in forms
  • Cookie consent with detailed cookie descriptions
  • Use of Google Tag Manager and YouTube API with privacy considerations

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
CookieTractor
Transparency
good

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. Content is professionally presented and relevant to the construction/property development sector.
  3. Cookie consent mechanism is implemented with detailed cookie descriptions.
  4. No explicit privacy policy or terms of service pages found on the main site.
  5. WHOIS data for the exact domain queried is missing, indicating possible subdomain or alias usage.
  6. Use of modern tracking and analytics tools with basic privacy compliance.
  7. No security.txt or incident response contact information found.
  8. Social media presence includes LinkedIn and YouTube channels.
  9. Site uses HTTPS with no visible security warnings.
Technical notes

Notes

The website uses a combination of legacy and modern technologies, including jQuery 1.11.3, Google Tag Manager, Google Analytics, and YouTube iframe API. The presence of .axd files and DependencyHandler.axd suggests the use of Umbraco CMS, a popular .NET-based content management system. Performance is moderate with good mobile optimization and accessibility features. SEO is supported by proper meta tags and structured data in JSON-LD format. The site integrates a cookie consent tool (CookieTractor) with detailed cookie management. Technical risks include reliance on older jQuery versions and missing security headers. Opportunities exist to modernize the tech stack and enhance security configurations to reduce technical debt and improve resilience.
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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