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Security report for blender.org

Blender Foundation · Technology · N/a

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

71/100

Risk levelMedium

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

Blender Foundation operates blender.org, a leading platform for the free and open source 3D creation software Blender. The website serves a global audience of 3D artists, developers, and professionals by providing comprehensive tools for modeling, animation, rendering, and VFX. Supported by a strong community and industry partnerships, Blender maintains a prominent position in the 3D software market with a business model centered on open source development, donations, and commercial services like Blender Studio. Technically, the website is built on WordPress with modern web technologies, delivering fast performance and excellent mobile optimization. The presence of plausible analytics indicates a privacy-conscious approach to user tracking. The site is well-structured with clear navigation and rich content, reflecting a mature digital infrastructure. From a security perspective, the site enforces HTTPS and demonstrates good security practices, though explicit security policies and incident response contacts are not prominently displayed. No vulnerabilities or exposed sensitive data were detected. Privacy compliance is supported by a comprehensive privacy policy, though cookie consent mechanisms could be improved. Overall, blender.org presents a trustworthy, professional, and secure online presence aligned with the Blender Foundation's mission. Strategic recommendations include enhancing visible security contacts, implementing cookie consent, and publishing a security.txt file to further strengthen security posture and user trust.

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

5 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"

  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

  3. 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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching blender.org

This scan found 20 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

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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
75
Security headers
30
Email security
85
DNS health
85
Network security
100
GDPR outside view
53
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

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 blender.org, from OffSeq Breach.

Total records
38,637
Employees
0
Customers
38,600
Third parties
37
Weak passwords
9%

50 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for blender.org.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

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

Business context

Business profile

Blender Foundation is positioned as a key player in the open source 3D software industry, leveraging a community-driven development model. Its competitive advantage lies in offering a fully featured, free alternative to commercial 3D software, supported by a vibrant ecosystem of contributors and industry collaborations. Revenue streams include donations, development funds, and commercial projects like Blender Studio. The target customers range from hobbyists to professional studios worldwide. Growth indicators include active development updates, community engagement, and partnerships with major hardware vendors and industry foundations. The ecosystem includes multiple related domains for development, funding, and community support, reflecting a robust partnership network.

Security posture

The website exhibits a mature security posture with enforced HTTPS, absence of exposed sensitive data, and use of modern security headers (inferred). However, explicit security policies and incident response information are not readily available, which could hinder rapid vulnerability reporting and response. No known vulnerabilities or outdated libraries were detected. Privacy compliance is strong with a detailed privacy policy, but cookie consent mechanisms are lacking. The site would benefit from publishing a security.txt file and providing clear security contact channels to enhance transparency and incident management readiness.

Recommendations

  1. Publish a security.txt file at the root domain to facilitate vulnerability disclosure.
  2. Add visible security contact information or dedicated security policy page.
  3. Implement a cookie consent banner/mechanism to comply fully with GDPR and other privacy regulations.
  4. Enhance Content-Security-Policy headers explicitly to mitigate XSS risks.
  5. Improve contact information visibility for general support and security inquiries to build user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Blender Foundation
Description
Blender is a free and open source 3D creation software project owned by its contributors and hosted by the Blender Foundation. It offers a comprehensive suite of tools for 3D modeling, animation, rendering, VFX, and more. The project is supported by a global community and industry partners.
Key services
3D modeling and sculpting, Rendering with Cycles engine, Animation and rigging, VFX and compositing, 2D drawing in 3D, Python API for customization
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress 6.8.2, PHP, JavaScript, CSS, HTML5, Plausible Analytics
Frameworks
WordPress CMS
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected
  • No forms collecting sensitive data without protection

Analytics and tracking

Services
Plausible Analytics
Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Plausible Analytics
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, professionally presented, and highly relevant to 3D creation software.
  3. Strong presence of open source and community trust signals.
  4. No direct contact emails or phone numbers found on homepage; contact likely via subpages.
  5. No cookie consent mechanism detected despite GDPR compliance claims.
  6. WHOIS data unavailable, likely due to privacy protection or query failure.
Technical notes

Notes

The website is powered by WordPress 6.8.2, utilizing modern HTML5, CSS, and JavaScript technologies. It integrates Plausible Analytics for privacy-friendly user tracking. The site demonstrates fast loading times and excellent mobile responsiveness. The technical stack is well maintained with no signs of deprecated or vulnerable components. The use of multiple subdomains for development, funding, and community engagement indicates a modular and scalable infrastructure. Opportunities exist to further modernize security headers and enhance privacy compliance mechanisms.
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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