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Security report for gunicorn.org

ENKI MULTIMEDIA · Technology · France

Medium risk. 9 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

55/100

Risk levelMedium

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

Gunicorn.org is the official website for Gunicorn, a Python WSGI HTTP server designed for UNIX systems. The site serves primarily as an informational and community hub for this open source project, providing installation instructions, deployment guidance, and links to the source code repository on GitHub. The project is mature, with a domain registered since 2010, and is maintained by ENKI MULTIMEDIA based in France. The target audience is developers and system administrators who deploy Python web applications. The business model is open source software development with community-driven contributions and project management hosted on GitHub. Technically, the website is simple and functional, using minimal external libraries such as jQuery and hosted on GitHub Pages. The site lacks advanced CMS or frameworks and has basic mobile optimization and accessibility. Performance is moderate, with no visible analytics or tracking services, reflecting a privacy-conscious approach. However, the site does not implement modern security headers or DNSSEC, and HTTPS enforcement details are not visible, indicating room for improvement in security posture. Security-wise, Gunicorn.org demonstrates some good practices such as a dedicated security mailing list and recommendations to use nginx as a reverse proxy for deployment. However, the absence of security headers, DNSSEC, and formal privacy or cookie policies limits its compliance and security maturity. The WHOIS data is consistent and trustworthy, with no privacy protection masking and domain status flags protecting against unauthorized changes. Overall, Gunicorn.org is a credible and stable open source project site with good business credibility and moderate technical implementation. Security and privacy compliance can be enhanced by adding formal policies, improving HTTPS enforcement, and implementing security headers. These improvements would strengthen trust and protect users better while maintaining the project's open source ethos.

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

9 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 gunicorn.org

This scan found 29 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
62
Security headers
15
Email security
35
DNS health
80
Network security
100
GDPR outside view
35
Average
55

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention gunicorn.org, from OffSeq Breach.

No leaked records found

Breach holds no records for gunicorn.org right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

Gunicorn is positioned as a leading open source Python WSGI HTTP server for UNIX environments, widely adopted by developers for its simplicity, compatibility, and performance. The project is community-driven, hosted on GitHub, and managed by ENKI MULTIMEDIA, a small French company. The business model revolves around open source software development without direct monetization visible on the site. The target customers are Python developers and system administrators. The project benefits from active community engagement through GitHub issues, IRC channels, and mailing lists. There are no visible partnerships or subsidiaries. The website content is professional and focused on technical documentation, reflecting a clear market niche and competitive advantage in the Python web server space.

Security posture

The security posture of Gunicorn.org is moderate. The site encourages best practices such as deploying Gunicorn behind nginx and provides a dedicated security mailing list for vulnerability reporting. However, the lack of DNSSEC, security headers, and visible HTTPS enforcement reduces its security maturity. No forms or user input fields are present, minimizing attack surface. The absence of privacy and cookie policies indicates compliance gaps with GDPR and other regulations. Incident response readiness is partially addressed via the security mailing list but lacks formal published policies. Overall, the site is low risk but would benefit from enhanced security controls and transparency.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS integrity and security.
  2. Implement and advertise security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options.
  3. Ensure HTTPS is enforced site-wide and provide visible HTTPS indicators to users.
  4. Publish comprehensive privacy and cookie policies to improve GDPR compliance and user trust.
  5. Develop and publish a formal security policy and incident response plan accessible on the website.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ENKI MULTIMEDIA
Description
Gunicorn 'Green Unicorn' is a Python WSGI HTTP Server for UNIX using a pre-fork worker model. It is broadly compatible with various web frameworks, lightweight on server resources, and designed for speed.
Key services
Python WSGI HTTP server, Open source project management and community support
Content quality
good
Branding
consistent

Technology

Stack
Python, WSGI, jQuery 1.7.2
Platforms
UNIX
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
50/100
Good practices seen
  • Use of security mailing list for vulnerability reporting
  • Encouragement to use nginx as reverse proxy

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
basic
User experience
basic
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is an open source project site with technical documentation and community links.
  2. No privacy, cookie, or terms of service policies are present on the site.
  3. Contact information is limited to a security email address; no phone numbers or physical addresses found.
  4. No forms or data collection mechanisms detected on the site.
  5. Site uses minimal external scripts and libraries, primarily jQuery 1.7.2 and Google CDN.
  6. No analytics or tracking services detected.
  7. No advertising or marketing tools present.
  8. Site content is safe and appropriate for general audiences.
  9. No security headers or HTTPS enforcement details visible in the HTML content.
  10. WHOIS data indicates a stable and legitimate domain registration.
Technical notes

Notes

The website is built with minimalistic technology, primarily static HTML with jQuery 1.7.2 loaded from Google CDN. It is hosted on GitHub Pages, indicating a lightweight and cost-effective hosting solution. The site lacks modern frameworks or CMS, which reduces complexity but limits dynamic functionality. Performance is moderate with no heavy scripts or tracking. Mobile optimization and accessibility are basic but functional. SEO is basic with standard meta tags but no advanced structured data or Open Graph tags detected. The technical stack aligns well with the site's purpose as an informational and community portal for an open source project.
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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