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Security report for rolldown.rs

VoidZero Inc. · Technology · N/a

Medium risk. 8 critical or high findings in Email security, Security headers and 2 other checks.

Security score

60/100

Risk levelMedium

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

Rolldown is a technology-focused project offering a fast Rust-based JavaScript bundler with compatibility to Rollup and feature parity with esbuild. It targets developers seeking high-performance bundling solutions and aims to integrate closely with the Vite ecosystem. The website is professionally designed using modern frameworks such as VitePress and Vue.js, delivering a fast and responsive user experience. However, it lacks formal privacy and cookie policies, explicit contact information, and published security policies, which are areas for improvement. The domain registration is consistent with the business timeline and shows no suspicious indicators, supporting the legitimacy of the project.

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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  2. 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 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';…

  3. 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 rolldown.rs

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
75
Security headers
30
Email security
60
DNS health
60
Network security
100
GDPR outside view
35
Average
60

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

Rolldown operates as an open source software project under VoidZero Inc., focusing on the technology sector with a niche in JavaScript bundling tools. Its competitive advantage lies in leveraging Rust for performance and maintaining compatibility with popular bundlers like Rollup. The project engages its community via GitHub, Discord, and social media platforms, fostering collaboration and transparency. The business model appears to be community-driven with potential for commercial support or services. The absence of direct contact details and formal policies suggests a primarily developer-focused audience rather than a commercial enterprise with extensive customer support.

Security posture

The website enforces HTTPS and avoids exposing sensitive data or forms, indicating a baseline security posture. However, the lack of security headers, vulnerability disclosure mechanisms, and incident response contacts limits its security maturity. No known vulnerabilities or malware indicators were found. The absence of privacy and cookie policies also represents a compliance gap, especially regarding GDPR. Overall, the security posture is moderate but could be significantly improved by adopting standard security best practices and transparency measures.

Recommendations

  1. Publish comprehensive privacy and cookie policies to improve compliance and user trust.
  2. Implement standard security headers such as Content-Security-Policy and X-Frame-Options.
  3. Enable DNSSEC for the domain to enhance DNS security.
  4. Provide explicit contact information including security and abuse contacts.
  5. Add a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
VoidZero Inc.
Description
Rolldown is a fast Rust-based bundler for JavaScript with a Rollup-compatible API, designed to handle large module counts efficiently and intended to serve as the unified bundler in Vite in the near future.
Key services
JavaScript bundling, Rollup-compatible API, Built-in transforms and minification, CSS bundling, Integration with Vite
Content quality
good
Branding
consistent

Technology

Stack
Rust, JavaScript, VitePress, Vue.js
Frameworks
VitePress, Vue.js
Platforms
Web
Performance
fast
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced (implied by URL https://)
  • No exposed sensitive data in HTML
  • No forms detected to collect sensitive input

Analytics and tracking

Services
Algolia (search indexing)
Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. No privacy, cookie, or terms of service policies found on the site.
  3. No contact emails or phone numbers explicitly provided.
  4. Strong focus on open source software development and community engagement.
  5. Social media presence is active and linked.
  6. No forms or data collection inputs detected on the homepage.
  7. No explicit security policies or incident response information published.
  8. Domain registration is stable and consistent with business claims.
Technical notes

Notes

The website is built on a modern technical stack including Rust for the core bundler, and VitePress with Vue.js for the documentation site. It uses Algolia for search functionality, enhancing user experience. The site is fast, mobile-optimized, and well-structured with good SEO practices. No CMS beyond VitePress is detected. Hosting provider details are not explicit. The technical implementation is solid with room for improvement in accessibility and security headers.
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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