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Security report for concretecms.org

PortlandLabs · Technology · N/a

Low risk. 3 critical or high findings in Security headers and GDPR outside view.

Security score

79/100

Risk levelLow

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

Concrete CMS is an established open source content management system developed and maintained by PortlandLabs since 2008. It targets web developers and content editors seeking an easy-to-use, flexible CMS platform with built-in features and a strong community backing. The website positions Concrete CMS as a trusted solution used by governments and Fortune 500 companies, emphasizing security, extensibility, and user-friendly editing experiences. The business model revolves around open source software distribution complemented by community engagement and commercial support services. Technically, the website employs a modern technology stack including jQuery, Bootstrap, Vue.js, FontAwesome, and analytics tools such as Matomo and Google Analytics. The CMS itself is Concrete CMS, which is also the product being promoted. The site is mobile optimized, well-structured, and uses responsive design techniques. Performance is moderate with room for improvement in accessibility features. SEO practices are good with proper meta tags and Open Graph data. From a security perspective, the site enforces HTTPS and includes a dedicated security page. Cookie consent mechanisms and a comprehensive privacy policy demonstrate compliance with privacy regulations including GDPR. However, explicit security headers are not detected, and no public vulnerability disclosure or incident response contacts are published. No vulnerabilities or exposed sensitive data were found in the HTML content. Overall, the website is professional, trustworthy, and well-maintained with a high level of content quality and business credibility. The lack of WHOIS data limits domain registration trust analysis, but the site’s branding and external trust signals strongly support legitimacy. Strategic recommendations include enhancing security headers, publishing vulnerability disclosure policies, improving accessibility, and maintaining transparency in data protection practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

3 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 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

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

Keep watching concretecms.org

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
100
Security headers
65
Email security
70
DNS health
85
Network security
100
GDPR outside view
53
Average
79

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

Concrete CMS holds a strong position in the open source CMS market, targeting developers and businesses needing customizable and user-friendly website management solutions. Its competitive advantages include a mature platform with built-in features, a supportive community, and endorsements from reputable organizations. The business model leverages open source licensing (MIT) with commercial hosting and support offerings. Revenue streams likely include hosting partnerships, marketplace add-ons, and professional services. The target customer segments are developers, agencies, and enterprises requiring flexible CMS solutions. Growth indicators include active community engagement, regular releases, and a broad ecosystem of extensions. The partnership ecosystem is robust, with multiple related domains supporting documentation, forums, translation, and marketplace functions. Operationally, the company demonstrates professionalism and strategic focus on security and compliance.

Security posture

The security posture of the Concrete CMS website is solid with HTTPS enforced and a dedicated security information page. Privacy compliance is well addressed with a comprehensive privacy policy and cookie consent banner. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options represents an area for improvement. No public vulnerability disclosure or incident response contacts were found, which could limit transparency and responsiveness to security incidents. No exposed sensitive data or vulnerable libraries were detected in the HTML content. Overall, the site demonstrates a mature security culture but could enhance its defenses and communication to align with best practices and regulatory expectations.

Recommendations

  1. Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to strengthen defense against common web attacks.
  2. Publish a formal vulnerability disclosure policy and provide clear incident response contact channels to improve transparency and security responsiveness.
  3. Enhance website accessibility to meet WCAG standards, improving usability for all users including those with disabilities.
  4. Regularly audit and update third-party scripts and libraries to mitigate risks from vulnerabilities in dependencies.
  5. Expand cookie consent mechanisms to allow granular user control over tracking and data collection preferences.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
PortlandLabs
Description
Concrete CMS is an open source content management system designed to be easy for developers and editors, offering a point and click free CMS that creates websites. It is extendable with built-in features and trusted by governments and Fortune 500 companies.
Key services
CMS software, Hosting guidance, Extensions marketplace, Community support
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Bootstrap, FontAwesome, Vue.js, Matomo Analytics, Google Analytics, ResponsiveSlides.js
Frameworks
Concrete CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Security page linked
  • No exposed sensitive data in HTML
  • Cookie consent banner

Analytics and tracking

Services
Matomo, Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Transparency
basic

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 rich, professional, and well-structured
  3. Strong presence of trust indicators including testimonials and security page
  4. Use of modern web technologies and analytics tools
  5. WHOIS data unavailable but no suspicious indicators found
  6. Cookie consent and privacy policy are implemented properly
  7. No direct contact emails or phone numbers found on main site; contact via form only
Technical notes

Notes

The website is built on Concrete CMS and leverages a modern front-end stack including jQuery, Bootstrap, and Vue.js. It integrates analytics tools such as Matomo and Google Analytics for user behavior tracking. The site is mobile responsive and uses responsive image sliders and video content to enhance user engagement. Performance is moderate, with potential optimization opportunities in script loading and accessibility improvements. The technical infrastructure appears stable and well-maintained, with no visible technical debt or deprecated technologies. Hosting provider details are not explicitly identified. Overall, the technical implementation supports a professional and user-friendly experience aligned with the business goals.
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. 79/100Low24 findingsView report
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