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Security report for dunglas.dev

Les-Tilleuls.coop · Technology · France

Medium risk. 8 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

61/100

Risk levelMedium

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

Kévin Dunglas operates a professional technical blog focused on software architecture and API expertise, prominently featuring his open source projects such as API Platform, FrankenPHP, Mercure.rocks, and Vulcain.rocks. The website targets developers and technology enthusiasts, offering rich, technical content and insights into modern PHP and API development. The business model revolves around open source software creation, consulting, training, and sponsorship, positioning the entity as a recognized expert in the technology sector. The website is well-branded and consistent with a strong reputation in the developer community. Technically, the site is built on WordPress with a modern tech stack including jQuery, Prism.js for code syntax highlighting, and several SEO and analytics plugins. The site demonstrates good performance, mobile optimization, and accessibility. SEO is well implemented with comprehensive meta tags, Open Graph, and JSON-LD structured data enhancing discoverability and social sharing. From a security perspective, the site uses HTTPS with excellent SSL configuration and no visible vulnerabilities or exposed sensitive data. However, it lacks explicit security headers and published security or incident response policies. Privacy compliance is limited due to the absence of a privacy policy and cookie consent mechanism, which are recommended for GDPR compliance. Overall, the website is professional, trustworthy, and technically sound, with minor gaps in privacy and security policy disclosures. Strategic improvements in these areas would enhance compliance and user trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

8 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. 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 Policy found

      GDPR requires clear information about cookie usage

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

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

Keep watching dunglas.dev

This scan found 25 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

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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
65
Security headers
15
Email security
70
DNS health
80
Network security
100
GDPR outside view
35
Average
61

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

The website represents a small but influential technology entity specializing in API and PHP ecosystem innovations. It leverages open source projects as key assets and engages a developer audience through technical content and community involvement. The business benefits from sponsorships and consulting opportunities linked to its projects. The partnership ecosystem includes related domains hosting complementary projects. The site’s longevity and consistent content updates indicate stable growth and a strong market position within the software development community. Competitive advantages include recognized expertise, popular open source projects, and active community engagement. Revenue streams likely include consulting, training, sponsorships, and possibly merchandise (e.g., plush toys mentioned in blog posts). The business model emphasizes knowledge sharing and community building, supporting sustainable growth and influence.

Security posture

The website exhibits a mature security posture with HTTPS enforced and no visible security flaws in the HTML content. The absence of security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options represents an area for improvement. No incident response or vulnerability disclosure policies are published, which could limit transparency and preparedness in case of security events. The use of third-party analytics and tracking scripts is moderate, with no signs of excessive user tracking. Compliance with GDPR is partial due to missing privacy and cookie policies. The site should implement explicit consent mechanisms and publish security and incident response policies to enhance trust and regulatory compliance. Overall, the security posture is good but could be strengthened with formal policies and headers.

Recommendations

  1. Publish a comprehensive privacy policy and cookie policy with GDPR compliance details.
  2. Implement a cookie consent mechanism to inform and obtain user consent for tracking.
  3. Add security headers such as CSP, HSTS, and X-Frame-Options to improve protection against common web attacks.
  4. Create and publish a security policy and vulnerability disclosure or security.txt file to improve transparency and incident response readiness.
  5. Ensure Google Analytics and other tracking tools are properly configured to respect user privacy and data protection regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Les-Tilleuls.coop
Description
Founder of Les-Tilleuls.coop (worker-owned cooperative). Creator of API Platform, FrankenPHP, Mercure.rocks, Vulcain.rocks and of some Symfony components.
Key services
API Platform development, FrankenPHP, Mercure.rocks, Vulcain.rocks, Symfony components, Consulting and training
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress 6.8.3, PHP, jQuery, Prism.js, Google Fonts, Font Awesome, MonsterInsights (Google Analytics plugin), Jetpack, Superb Blocks plugin, ActivityPub plugin
Frameworks
Symfony components (mentioned in content)
Platforms
WordPress
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced (implied by canonical URLs and external links)
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Analytics (via MonsterInsights), Jetpack Stats
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Jetpack Stats, Cloudflare Beacon
Marketing tools
MonsterInsights (Google Analytics plugin)
Transparency
basic

Site quality

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

Key observations

  1. Website is a professional technical blog of Kévin Dunglas, a recognized software architect and API expert.
  2. Content is rich, technical, and regularly updated with blog posts about PHP, API Platform, FrankenPHP, and related technologies.
  3. No privacy or cookie policies explicitly found on the homepage or linked pages.
  4. Contact email is provided clearly in the menu.
  5. No explicit security or incident response policies published.
  6. Uses WordPress CMS with several plugins for SEO, analytics, and social features.
  7. No signs of malicious or suspicious content or domains.
  8. Good SEO and social media integration with Open Graph and Twitter cards.
  9. No phone numbers or physical addresses found.
  10. No forms collecting personal data except for a blog subscription email form.
Technical notes

Notes

The website is built on a stable and widely used CMS platform (WordPress) with a modern and well-maintained technology stack. It uses jQuery and Prism.js for enhanced user experience and code presentation. The site loads quickly and is optimized for mobile devices, with responsive design and accessibility considerations. SEO is well implemented with meta tags, Open Graph, Twitter cards, and JSON-LD structured data, improving search engine visibility and social media integration. The site uses several plugins for analytics, social features, and SEO, which are current and reputable. There is no evidence of technical debt or outdated libraries. Hosting provider details are not explicitly detected but the site benefits from Cloudflare CDN and security services. Overall, the technical infrastructure is robust, performant, and aligned with best practices for a professional developer blog.
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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