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Security report for symfony.com

Symfony SAS · Technology · France

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

67/100

Risk levelMedium

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

Symfony SAS operates the symfony.com website, providing a high-performance PHP web framework and a suite of reusable PHP packages for building web applications, APIs, microservices, and CLI apps. Positioned as a leading technology provider in the PHP ecosystem, Symfony offers a comprehensive open-source framework supported by a strong developer community of over 600,000 members worldwide. The company also provides commercial services including training, certification, consulting, and cloud hosting via SymfonyCloud powered by Platform.sh. The website reflects a mature business model combining open-source software with professional services and cloud solutions.

Scanned

This is an earlier scan of symfony.com. View the latest report

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

6 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 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

    • High

      Third-party services without privacy policy

      Detected services: Facebook, Twitter, LinkedIn, YouTube

      What to do: Document all third-party data sharing in your privacy policy

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

Keep watching symfony.com

This scan found 22 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
75
Security headers
55
Email security
60
DNS health
75
Network security
100
GDPR outside view
35
Average
67

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

Symfony holds a strong market position as a premier PHP framework with extensive community engagement and a broad ecosystem of products and services. Its business model leverages open-source adoption to drive demand for training, certification, and cloud hosting services. Partnerships with SensioLabs (parent company), Platform.sh, Blackfire, and SymfonyCasts enhance its offerings and market reach. The company targets developers and tech teams seeking scalable, secure, and maintainable web application solutions. Growth indicators include a large number of package downloads (31 billion) and GitHub stars (350k), reflecting widespread adoption and active development.

Security posture

The website demonstrates a robust security posture with HTTPS enforced, presence of key security headers, and a transparent security policy including CVE monitoring and long-term support for security fixes. Integration of Blackfire profiling indicates attention to performance and security monitoring. However, the absence of a published security.txt file and explicit incident response contact emails limits full transparency. No vulnerabilities or exposed sensitive data were detected in the content. GDPR compliance is indicated but could be improved with an explicit cookie consent mechanism. Overall, the security maturity is high but with room for enhanced disclosure and user privacy controls.

Recommendations

  1. Implement a clear cookie consent banner to improve GDPR compliance and user privacy transparency.
  2. Publish a security.txt file to facilitate vulnerability reporting and improve incident response readiness.
  3. Provide explicit security incident contact emails (e.g., security@ or abuse@) on the website.
  4. Enhance contact information by adding verified company email addresses and phone numbers for support and sales.
  5. Regularly audit third-party scripts and dependencies to ensure no vulnerable libraries are included.

Contact details published on the site

Addresses
Legal name
Symfony SAS
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Symfony SAS
Description
Symfony is a web framework and a set of reusable PHP packages to build web applications, APIs, microservices and CLI apps.
Key services
Symfony Framework, Symfony Components, SymfonyInsight (quality checks), Blackfire (performance profiling), SymfonyCloud (PaaS hosting), Training and Certification
Content quality
excellent
Branding
consistent

Technology

Stack
PHP, Symfony Framework, Bootstrap CSS, Stimulus JS, Asciinema Player, OpenSearch, Blackfire Probe
Frameworks
Symfony
Platforms
Platform.sh (SymfonyCloud)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Security policy published
  • Long-term support with security fixes
  • Use of Blackfire for performance and profiling
  • No exposed sensitive data detected

Analytics and tracking

Services
Blackfire
Tracking level
minimal
Privacy practices
basic

Advertising

Tracking pixels
Blackfire
Marketing tools
Blackfire, SymfonyConnect
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 rich content and no blocking detected.
  2. Strong presence of official branding and consistent design.
  3. Comprehensive developer resources and community engagement.
  4. Use of modern web technologies and performance optimization.
  5. Security policies and long-term support clearly communicated.
  6. Lack of explicit cookie consent mechanism noted.
  7. No direct contact emails or phone numbers publicly listed.
  8. Multiple social media and community links enhance trust.
Technical notes

Notes

The website is built on a modern technology stack centered around the Symfony PHP framework, leveraging Bootstrap for responsive design and Stimulus for frontend interactivity. It uses advanced features like import maps and ES module shims for efficient JavaScript loading. Hosting is likely provided by Platform.sh, as indicated by SymfonyCloud references. Performance is optimized with asynchronous script loading and preconnect hints. Accessibility and SEO are well addressed with semantic HTML, ARIA roles, and comprehensive metadata including Open Graph and JSON-LD structured data. The site is mobile-optimized and provides a rich user experience with interactive elements such as asciinema terminal recordings and dynamic conference highlights.
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. 67/100 −3Medium28 findingsView report
  2. 70/100Medium24 findingsView report
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